Perpetual benchmark thread... - Page 2

QuintLeo · 2003-02-15, 17:31

$450 for a case. *yeep*

I thought my Shuttle SS51G was expen$ive - but it was case/ps/motherboard/heatpipe HS combo, for around $320 (they've gone DOWN since then).

I bet it could be one heck of a gaming machine, though.

9-)

xtreme2k · 2003-02-23, 11:06

Now this should be interesting :) Below is my new system.

Asus P4G8X Deluxe
Intel P4 2.4B (SL6EF) overclocked to 3150MHz stable for prime.
4* 512MB Samsung 512MB DDR333 memory

Intel(R) Pentium(R) 4 CPU 2.40GHz
CPU speed: 3149.95 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
TLBS: 64
Prime95 version 23.2, RdtscTiming=1
Best time for 384K FFT length: 11.787 ms.
Best time for 448K FFT length: 13.932 ms.
Best time for 512K FFT length: 16.212 ms.
Best time for 640K FFT length: 20.573 ms.
Best time for 768K FFT length: 25.292 ms.
Best time for 896K FFT length: 30.452 ms.
Best time for 1024K FFT length: 33.451 ms.
Best time for 1280K FFT length: 44.539 ms.
Best time for 1536K FFT length: 54.474 ms.
Best time for 1792K FFT length: 66.553 ms.
Best time for 2048K FFT length: 72.467 ms.

lycorn · 2003-02-23, 12:56

Quote:

Intel P4 2.4B (SL6EF) overclocked to 3150MHz stable for prime

That´s over 30% OC... great! How do you cool it?

xtreme2k · 2003-02-23, 13:30

Quote:

Originally Posted by lycorn

Quote:

Intel P4 2.4B (SL6EF) overclocked to 3150MHz stable for prime

That´s over 30% OC... great! How do you cool it?

Just stock intel cooler. However its at some rather high temp. About 60'c full loaded. I am going to get a better cooler. I havent even add more voltage to the CPU. Its still running at 1.525v stock.

arjanscholl · 2003-03-01, 23:24

My Athlon XP 2700+ running at stock speed. Anyone have any suggestions into increasing the speed, without overclocking?

Code:

[Sun Mar 02 00:20:20 2003]
Compare your results to other computers at http://www.mersenne.org/bench.htm
That web page also contains instructions on how your results can be included.

AMD Athlon(tm) XP 2700+
CPU speed: 2171.81 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size: 64 KB
L2 cache size: 256 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 256
Prime95 version 23.2, RdtscTiming=1
Best time for 384K FFT length: 28.994 ms.
Best time for 448K FFT length: 33.098 ms.
Best time for 512K FFT length: 36.328 ms.
Best time for 640K FFT length: 46.863 ms.
Best time for 768K FFT length: 57.648 ms.
Best time for 896K FFT length: 67.237 ms.
Best time for 1024K FFT length: 76.810 ms.
Best time for 1280K FFT length: 100.573 ms.
Best time for 1536K FFT length: 120.943 ms.
Best time for 1792K FFT length: 146.824 ms.
Best time for 2048K FFT length: 163.801 ms.

dswanson · 2003-03-02, 00:04

Here's one for some grins. I finally pulled it off of doublechecks a few months ago. It's now struggling along at about one trial-factor per month...

Code:

Intel Pentium processor
CPU speed: 166.20 MHz
CPU features: RDTSC
L1 cache size: unknown
L2 cache size: unknown
L1 cache line size: unknown
L2 cache line size: unknown
Prime95 version 22.8, RdtscTiming=1
Best time for 256K FFT length: 387.041 ms.
Best time for 320K FFT length: 502.018 ms.
Best time for 384K FFT length: 604.460 ms.
Best time for 448K FFT length: 729.759 ms.
Best time for 512K FFT length: 810.044 ms.
Best time for 640K FFT length: 1083.643 ms.
Best time for 768K FFT length: 1294.541 ms.
Best time for 896K FFT length: 1552.056 ms.
Best time for 1024K FFT length: 1730.932 ms.
Best time for 1280K FFT length: 2236.176 ms.
Best time for 1536K FFT length: 2644.857 ms.
Best time for 1792K FFT length: 3163.741 ms.

QuintLeo · 2003-03-02, 00:30

> My Athlon XP 2700+ running at stock speed. Anyone have any suggestions into increasing the speed, without overclocking?

You could try getting more aggresive with your memory settings - my XP1800+/KT7A went from about .252 to .237 (10,000,000 digit exponents, 1792K FFT) per iteration just by switching from "sdram 8/10" (AKA slow default) and CAS 3 to "normal" and CAS 2. I tried the "fast" and "turbo" memory settings, but they made the machine very unstable - though they also got the iteration timings down to around .222 at fastest settings.

Best bet would be to push the FSB and memory settings as high as you can get them to go, *dropping* the CPU clock multiplier if you have to, while keeping a close eye on the stability of the machine.

Prime is VERY memory-intensive - one of the reasons P4s beat Athlons on it (SSE2 is a bigger reason, from what I've seen).

Squirly · 2003-03-07, 19:59

Intel(R) Pentium(R) 4 CPU 3.06GHz
CPU speed: 3703.12 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
TLBS: 64
Prime95 version 23.2, RdtscTiming=1
Best time for 384K FFT length: 12.400 ms.
Best time for 448K FFT length: 14.606 ms.
Best time for 512K FFT length: 16.618 ms.
Best time for 640K FFT length: 20.885 ms.
Best time for 768K FFT length: 25.383 ms.
Best time for 896K FFT length: 29.774 ms.
Best time for 1024K FFT length: 33.815 ms.
Best time for 1280K FFT length: 42.912 ms.
Best time for 1536K FFT length: 51.485 ms.
Best time for 1792K FFT length: 63.633 ms.
Best time for 2048K FFT length: 69.308 ms.

QuintLeo · 2003-04-15, 05:47

I'm learning to like Thoroughbreds.

XP1800+ on a Asus A7V333 pulling about 1833 Mhz (actual clock) on 166 FSB at 11 multiplier. 1792k FFT down around .188 - and I don't think I've found the limit on the FSB yet (total clock limit on this CPU seems to be around 1850-1860ish).

Also runs 5 degrees C or a little more COOLER even when overclocking 10+% faster than I ever managed to get a Palomino XP1800+ up to....

I'll have the actual benchmarks posted sometime later this week - still finalizing some stuff on that machine.

QuintLeo · 2003-04-18, 23:21

AMD Athlon(TM) XP 1800+ (Thoroughbred)
CPU speed 1800 MHz (150Mhz FSB x12 multiplier)
DDR PC2700 CAS2.5 @ 150 Mhz
CPU features RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size 64 KB
L2 cache size 256 KB
L1 cache line size 64 bytes
L2 cache line size 64 bytes
L1 TLBS 32
L2 TLBS 256
Prime95 version 23.2, RdtscTiming=1
Best time for 384K FFT length 46.141 ms.
Best time for 448K FFT length 52.154 ms.
Best time for 512K FFT length 58.489 ms.
Best time for 640K FFT length 73.452 ms.
Best time for 768K FFT length 89.325 ms.
Best time for 896K FFT length 104.048 ms.
Best time for 1024K FFT length 119.276 ms.
Best time for 1280K FFT length 151.989 ms.
Best time for 1536K FFT length 181.900 ms.
Best time for 1792K FFT length 217.479 ms.
Best time for 2048K FFT length 244.790 ms.

AMD Athlon(TM) XP 1800+ (Thoroughbred)
CPU speed 1833.33 MHz (166 FSB x11 Multiplier)
DDR PC2700 CAS2.5 @ 166 Mhz
CPU features RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size 64 KB
L2 cache size 256 KB
L1 cache line size 64 bytes
L2 cache line size 64 bytes
L1 TLBS 32
L2 TLBS 256
Prime95 version 23.2, RdtscTiming=1
Best time for 384K FFT length 38.107 ms.
Best time for 448K FFT length 41.999 ms.
Best time for 512K FFT length 46.553 ms.
Best time for 640K FFT length 59.334 ms.
Best time for 768K FFT length 72.688 ms.
Best time for 896K FFT length 84.772 ms.
Best time for 1024K FFT length 97.332 ms.
Best time for 1280K FFT length 129.410 ms.
Best time for 1536K FFT length 154.900 ms.
Best time for 1792K FFT length 186.297 ms.
Best time for 2048K FFT length 208.178 ms.

AMD Athlon(TM) XP 1800+ (Thoroughbred)
CPU speed 1827.50 MHz (174 FSB x10.5x Multiplier)
DDR PC2700 CAS2.5 @ 174 Mhz
CPU features RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size 64 KB
L2 cache size 256 KB
L1 cache line size 64 bytes
L2 cache line size 64 bytes
L1 TLBS 32
L2 TLBS 256
Prime95 version 23.2, RdtscTiming=1
Best time for 384K FFT length 37.431 ms.
Best time for 448K FFT length 40.995 ms.
Best time for 512K FFT length 45.425 ms.
Best time for 640K FFT length 57.962 ms.
Best time for 768K FFT length 71.206 ms.
Best time for 896K FFT length 83.125 ms.
Best time for 1024K FFT length 95.108 ms.
Best time for 1280K FFT length 126.465 ms.
Best time for 1536K FFT length 151.975 ms.
Best time for 1792K FFT length 182.876 ms.
Best time for 2048K FFT length 204.786 ms.

Actual long-term usage generates a mix of 0.184 and 0.185 timings with these settings. This is the setting I'm sticking with, as it seems to be the fastest on this machine. CPU does NOT like running at anything over about 1850Mhz reliably - not too bad for a 1533Mhz rated CPU running without air conditioning and air cooled at stock voltage....

AMD Athlon(TM) XP 1800+ (Thoroughbred)
CPU speed 1848.06 MHz (176 FSB x10.5 Multiplier)
DDR PC2700 CAS2.5 @ 176 Mhz
CPU features RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size 64 KB
L2 cache size 256 KB
L1 cache line size 64 bytes
L2 cache line size 64 bytes
L1 TLBS 32
L2 TLBS 256
Prime95 version 23.2, RdtscTiming=1
Best time for 384K FFT length 41.643 ms.
Best time for 448K FFT length 46.794 ms.
Best time for 512K FFT length 52.470 ms.
Best time for 640K FFT length 65.948 ms.
Best time for 768K FFT length 81.202 ms.
Best time for 896K FFT length 93.854 ms.
Best time for 1024K FFT length 108.005 ms.
Best time for 1280K FFT length 142.583 ms.
Best time for 1536K FFT length 171.413 ms.
Best time for 1792K FFT length 206.748 ms.
Best time for 2048K FFT length 231.622 ms.

The last result is ODD - should have been faster at 176Mhz than 174 Mhz. I suspect some sort of divider in the BIOS/chipset that's non-configurable is kicking in at over 175Mhz FSB and slowing the RAM access down.

All of these tests done on a ASUS A7V333-X motherboard (VIA KT333 chipset) with BIOS v1.002

I could learn to like Thoroughbreds.... 9-)

nomadicus · 2003-05-12, 01:03

Dell, Inspiron 5100 laptop
Prime95 V23.3.1

Intel(R) Pentium(R) 4 CPU 2.53GHz
CPU speed: 2525.04 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.3, RdtscTiming=1
Best time for 384K FFT length: 15.677 ms.
Best time for 448K FFT length: 18.392 ms.
Best time for 512K FFT length: 21.284 ms.
Best time for 640K FFT length: 26.249 ms.
Best time for 768K FFT length: 31.453 ms.
Best time for 896K FFT length: 37.579 ms.
Best time for 1024K FFT length: 41.893 ms.
Best time for 1280K FFT length: 56.969 ms.
Best time for 1536K FFT length: 69.219 ms.
Best time for 1792K FFT length: 81.881 ms.
Best time for 2048K FFT length: 93.066 ms.

Xyzzy · 2003-06-19, 23:49

Untweaked Shuttle SN41G2 barebones system, memory set to synchronous, FN41 motherboard...

AMD Athlon(tm) XP 2500+
CPU speed: 1829.93 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size: 64 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
L1 TLBS: 32
L2 TLBS: 256
Prime95 version 23.4, RdtscTiming=1
Best time for 384K FFT length: 32.369 ms.
Best time for 448K FFT length: 36.468 ms.
Best time for 512K FFT length: 39.934 ms.
Best time for 640K FFT length: 52.538 ms.
Best time for 768K FFT length: 65.003 ms.
Best time for 896K FFT length: 75.540 ms.
Best time for 1024K FFT length: 87.432 ms.
Best time for 1280K FFT length: 112.174 ms.
Best time for 1536K FFT length: 134.566 ms.
Best time for 1792K FFT length: 164.620 ms.
Best time for 2048K FFT length: 180.681 ms.

mephisto · 2003-06-20, 13:44

Dell Dimension desktop - Pentium 4 2.66 GHz, 1024 MB 533MHz RDRAM

Prime versions 23.4 vs 22.12: 25% improvement on 1792K FFT.

Prime 23.4

Code:

Intel(R) Pentium(R) 4 CPU 2.66GHz
CPU speed: 2651.82 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.4, RdtscTiming=1
Best time for 384K FFT length: 13.435 ms.
Best time for 448K FFT length: 15.856 ms.
Best time for 512K FFT length: 18.088 ms.
Best time for 640K FFT length: 21.716 ms.
Best time for 768K FFT length: 26.450 ms.
Best time for 896K FFT length: 31.368 ms.
Best time for 1024K FFT length: 35.274 ms.
Best time for 1280K FFT length: 46.212 ms.
Best time for 1536K FFT length: 56.942 ms.
Best time for 1792K FFT length: 67.556 ms.

Prime 22.12

Code:

Intel(R) Pentium(R) 4 CPU 2.66GHz
CPU speed: 2651.55 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
TLBS: 64
Prime95 version 22.12, RdtscTiming=1
Best time for 384K FFT length: 14.432 ms.
Best time for 448K FFT length: 17.380 ms.
Best time for 512K FFT length: 19.655 ms.
Best time for 640K FFT length: 25.326 ms.
Best time for 768K FFT length: 31.003 ms.
Best time for 896K FFT length: 37.987 ms.
Best time for 1024K FFT length: 41.188 ms.
Best time for 1280K FFT length: 58.121 ms.
Best time for 1536K FFT length: 72.188 ms.
Best time for 1792K FFT length: 89.860 ms.

TauCeti · 2003-06-23, 18:43

Well, i benched my new i875 system at work today (MSI NEO board bios 1.5 - 2*TwinX512CorsairXMS3200LL@2-3-3-6).

If i am not totally mistaken, i got a 70ms bench on the 2048FFT with V23.4 at only 2.86GHz (P4C2.6) with DDR-420.

Using the i875 with DDR-400 and a 3.1GHz clock (5:4 mem) i got a 68ms on the 2048FFT.

Reading the numbers here i cannot believe it. I try to post the full bench data tomorrow if i did not dream it hehe ;)

I use the Intel boxed stock air cooling solution and i really don't want to increase vcore to get some more Megahurts - that box should last 3 years to work with.

Cheers,

Tau

delta_t · 2003-06-23, 20:48

Wow, TauCeti that's pretty fast if true. BUT how does it compare to this speed demon:

CPU type: 486 DX4-100
CPU Speed: 100
L2 cache size: ?
L2 cache speed:?
Memory Type / Bus Speed: ?
OS: Windows 95
Notes: Dell Latitude XP laptop, 20MB RAM

Intel 486 processor
CPU speed: 100.00 MHz
L1 cache size: unknown
L2 cache size: unknown
L1 cache line size: unknown
L2 cache line size: unknown
Prime95 version 22.12, RdtscTiming=1

Best time for 256K FFT length: 5644.112 ms.
Best time for 320K FFT length: 7487.132 ms.
Best time for 384K FFT length: 8896.265 ms.
Best time for 448K FFT length: 10872.523 ms.
Best time for 512K FFT length: 11809.254 ms.
Best time for 640K FFT length: 15911.686 ms.
Best time for 768K FFT length: 19052.907 ms.
Best time for 896K FFT length: 23010.530 ms.
Best time for 1024K FFT length: 25308.399 ms.
Best time for 1280K FFT length: 34091.262 ms.
Best time for 1536K FFT length: 56942.322 ms.
Best time for 1792K FFT length: 150014.057 ms.

sdbardwick · 2003-06-23, 21:13

delta_t: Don't make me break out my 386SX16... :(

S3SJK · 2003-06-23, 21:35

Wow, I think my Ti85 could beat that! Well perhaps not, but it would be a close one! :D

delta_t · 2003-06-23, 23:42

I started a new thread for "Who has the lowest benchmarks?" http://www.mersenneforum.org/viewtopic.php?t=745

So bring on those old dinosaurs.

TauCeti · 2003-06-24, 08:13

The i875 chipset works like a charm with prime95 (MSI NEO board bios v1.5, mem 2-3-3-6 timings with 2.8V in-spec voltage (Corsair TwinX3200LL), vCore default, stock intel boxed cooling)

(EDIT: Bench 2 was only stable for about 60 minutes but the settings seem to work with slightly raised vcore)

Bench 1: FSB at 880MHz(220 quad), mem at 420MHz

Intel(R) Pentium(R) 4 CPU 2.60GHz
CPU speed: 2873.47 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.4, RdtscTiming=1
Best time for 384K FFT length: 12.300 ms.
Best time for 448K FFT length: 14.587 ms.
Best time for 512K FFT length: 16.588 ms.
Best time for 640K FFT length: 19.966 ms.
Best time for 768K FFT length: 24.273 ms.
Best time for 896K FFT length: 28.798 ms.
Best time for 1024K FFT length: 32.372 ms.
Best time for 1280K FFT length: 42.255 ms.
Best time for 1536K FFT length: 52.235 ms.
Best time for 1792K FFT length: 61.950 ms.
Best time for 2048K FFT length: 69.863 ms.

System draws 70W idle and about 133W with prime95 torture-test - that is about 9.3Ws/2048FFT.

Bench 2: FSB at 960Mhz (240quad), mem at 400MHz

Intel(R) Pentium(R) 4 CPU 2.60GHz
CPU speed: 3133.24 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.4, RdtscTiming=1
Best time for 384K FFT length: 11.437 ms.
Best time for 448K FFT length: 13.554 ms.
Best time for 512K FFT length: 15.425 ms.
Best time for 640K FFT length: 18.535 ms.
Best time for 768K FFT length: 22.552 ms.
Best time for 896K FFT length: 26.662 ms.
Best time for 1024K FFT length: 29.951 ms.
Best time for 1280K FFT length: 39.310 ms.
Best time for 1536K FFT length: 48.347 ms.
Best time for 1792K FFT length: 57.434 ms.
Best time for 2048K FFT length: 64.950 ms.

System draws 70W idle and about 140W with prime95 torture-test - that is about 9.1Ws/2048FFT.

Tau

Reboot It · 2003-06-24, 13:58

Quote:

Originally Posted by sdbardwick

delta_t: Don't make me break out my 386SX16... :(

Oh please do! That'll save me having to blow the (considerable) dust off one (if I can even find it).

toferc · 2003-06-24, 16:51

Intel(R) Xeon(TM) CPU 3.06GHz
CPU speed: 3056.78 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.4, RdtscTiming=1
Best time for 384K FFT length: 12.009 ms.
Best time for 448K FFT length: 14.202 ms.
Best time for 512K FFT length: 16.217 ms.
Best time for 640K FFT length: 19.573 ms.
Best time for 768K FFT length: 23.736 ms.
Best time for 896K FFT length: 27.997 ms.
Best time for 1024K FFT length: 31.557 ms.
Best time for 1280K FFT length: 41.665 ms.
Best time for 1536K FFT length: 50.859 ms.
Best time for 1792K FFT length: 60.424 ms.
Best time for 2048K FFT length: 68.839 ms.

patrik · 2003-07-26, 18:32

CPU: Pentium 2.40C (800MHz FSB)
Memory: PC3200 DDR
OS: RedHat Linux 8.0
Motherboard: ASUS P4S800

Intel(R) Pentium(R) 4 CPU 2.40GHz
CPU speed: 2405.50 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.5, RdtscTiming=1
Best time for 384K FFT length: 15.418 ms.
Best time for 448K FFT length: 18.333 ms.
Best time for 512K FFT length: 20.869 ms.
Best time for 640K FFT length: 24.887 ms.
Best time for 768K FFT length: 30.304 ms.
Best time for 896K FFT length: 35.969 ms.
Best time for 1024K FFT length: 40.600 ms.
Best time for 1280K FFT length: 53.794 ms.
Best time for 1536K FFT length: 64.778 ms.
Best time for 1792K FFT length: 77.894 ms.
Best time for 2048K FFT length: 87.636 ms.

Mayhem316 · 2003-07-26, 20:54

MOBO: Abit Ic7
Thermalright 900-U heatsink with Vantec stealth 80mm fan
FBS 1200 (300 X 4) with 3/2 memory divider
512K of corsair DDR 3200LL memory @ 2225 timings @ 400mhz
520 watt PSU

Intel(R) Pentium(R) 4 CPU 2.40GHz
CPU speed: 3601.10 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 64 bytes
TLBS: 64
Prime95 version 22.12, RdtscTiming=1
Best time for 256K FFT length: 6.576 ms.
Best time for 320K FFT length: 8.748 ms.
Best time for 384K FFT length: 10.577 ms.
Best time for 448K FFT length: 12.693 ms.
Best time for 512K FFT length: 14.342 ms.
Best time for 640K FFT length: 18.583 ms.
Best time for 768K FFT length: 22.645 ms.
Best time for 896K FFT length: 27.797 ms.
Best time for 1024K FFT length: 30.138 ms.
Best time for 1280K FFT length: 42.406 ms.
Best time for 1536K FFT length: 52.440 ms.
Best time for 1792K FFT length: 64.887 ms.

Mayhem316 · 2003-07-26, 21:11

After reading some the of previous results with version 23 I re-ran the benchmark at the same speed and setup as above:

Intel(R) Pentium(R) 4 CPU 2.40GHz
CPU speed: 3601.02 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2
L1 cache size: 8 KB
L2 cache size: 512 KB
L1 cache line size: 64 bytes
L2 cache line size: 128 bytes
TLBS: 64
Prime95 version 23.6, RdtscTiming=1
Best time for 384K FFT length: 9.907 ms.
Best time for 448K FFT length: 11.769 ms.
Best time for 512K FFT length: 13.374 ms.
Best time for 640K FFT length: 16.027 ms.
Best time for 768K FFT length: 19.526 ms.
Best time for 896K FFT length: 23.148 ms.
Best time for 1024K FFT length: 25.917 ms.
Best time for 1280K FFT length: 33.979 ms.
Best time for 1536K FFT length: 41.898 ms.
Best time for 1792K FFT length: 49.700 ms.
Best time for 2048K FFT length: 56.192 ms.

markhl · 2003-08-05, 22:12

23.6 substantially the same speed as 23.5:

1024*768, 16-bit, 70 Hz, Matrox Millennium PCI card
Intel(R) Pentium(R) III processor
CPU speed: 863.95 MHz
CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE
L1 cache size: 16 KB
L2 cache size: 256 KB
L1 cache line size: 32 bytes
L2 cache line size: 32 bytes
TLBS: 64
Prime95 version 23.6, RdtscTiming=1
Best time for 384K FFT length: 89.495 ms.
Best time for 448K FFT length: 106.914 ms.
Best time for 512K FFT length: 119.046 ms.
Best time for 640K FFT length: 157.156 ms.
Best time for 768K FFT length: 187.249 ms.
Best time for 896K FFT length: 221.636 ms.
Best time for 1024K FFT length: 252.722 ms.
Best time for 1280K FFT length: 336.631 ms.
Best time for 1536K FFT length: 395.246 ms.
Best time for 1792K FFT length: 492.558 ms.
Best time for 2048K FFT length: 538.577 ms.

2003-07-26, 20:54	#48
Mayhem316 Jul 2003 2² Posts	50% overclock MOBO: Abit Ic7 Thermalright 900-U heatsink with Vantec stealth 80mm fan FBS 1200 (300 X 4) with 3/2 memory divider 512K of corsair DDR 3200LL memory @ 2225 timings @ 400mhz 520 watt PSU Intel(R) Pentium(R) 4 CPU 2.40GHz CPU speed: 3601.10 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes TLBS: 64 Prime95 version 22.12, RdtscTiming=1 Best time for 256K FFT length: 6.576 ms. Best time for 320K FFT length: 8.748 ms. Best time for 384K FFT length: 10.577 ms. Best time for 448K FFT length: 12.693 ms. Best time for 512K FFT length: 14.342 ms. Best time for 640K FFT length: 18.583 ms. Best time for 768K FFT length: 22.645 ms. Best time for 896K FFT length: 27.797 ms. Best time for 1024K FFT length: 30.138 ms. Best time for 1280K FFT length: 42.406 ms. Best time for 1536K FFT length: 52.440 ms. Best time for 1792K FFT length: 64.887 ms.

2003-07-26, 21:11	#49
Mayhem316 Jul 2003 100₂ Posts	version 23 After reading some the of previous results with version 23 I re-ran the benchmark at the same speed and setup as above: Intel(R) Pentium(R) 4 CPU 2.40GHz CPU speed: 3601.02 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.6, RdtscTiming=1 Best time for 384K FFT length: 9.907 ms. Best time for 448K FFT length: 11.769 ms. Best time for 512K FFT length: 13.374 ms. Best time for 640K FFT length: 16.027 ms. Best time for 768K FFT length: 19.526 ms. Best time for 896K FFT length: 23.148 ms. Best time for 1024K FFT length: 25.917 ms. Best time for 1280K FFT length: 33.979 ms. Best time for 1536K FFT length: 41.898 ms. Best time for 1792K FFT length: 49.700 ms. Best time for 2048K FFT length: 56.192 ms.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Perpetual "interesting video" thread...	Xyzzy	Lounge	43	2021-07-17 00:00
LLR benchmark thread	Oddball	Riesel Prime Search	5	2010-08-02 00:11
Perpetual I'm pi**ed off thread	rogue	Soap Box	19	2009-10-28 19:17
Perpetual autostereogram thread...	Xyzzy	Lounge	10	2006-09-28 00:36
Perpetual ECM factoring challenge thread...	Xyzzy	Factoring	65	2005-09-05 08:16

2003-02-15, 17:31	#26
QuintLeo Oct 2002 Lost in the hills of Iowa 1C0₁₆ Posts	$450 for a case. yeep I thought my Shuttle SS51G was expen$ive - but it was case/ps/motherboard/heatpipe HS combo, for around $320 (they've gone DOWN since then). I bet it could be one heck of a gaming machine, though. 9-)

2003-02-23, 11:06	#27
xtreme2k Aug 2002 174₁₀ Posts	Now this should be interesting :) Below is my new system. Asus P4G8X Deluxe Intel P4 2.4B (SL6EF) overclocked to 3150MHz stable for prime. 4* 512MB Samsung 512MB DDR333 memory Intel(R) Pentium(R) 4 CPU 2.40GHz CPU speed: 3149.95 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes TLBS: 64 Prime95 version 23.2, RdtscTiming=1 Best time for 384K FFT length: 11.787 ms. Best time for 448K FFT length: 13.932 ms. Best time for 512K FFT length: 16.212 ms. Best time for 640K FFT length: 20.573 ms. Best time for 768K FFT length: 25.292 ms. Best time for 896K FFT length: 30.452 ms. Best time for 1024K FFT length: 33.451 ms. Best time for 1280K FFT length: 44.539 ms. Best time for 1536K FFT length: 54.474 ms. Best time for 1792K FFT length: 66.553 ms. Best time for 2048K FFT length: 72.467 ms.

2003-03-02, 00:30	#32
QuintLeo Oct 2002 Lost in the hills of Iowa 2⁶×7 Posts	> My Athlon XP 2700+ running at stock speed. Anyone have any suggestions into increasing the speed, without overclocking? You could try getting more aggresive with your memory settings - my XP1800+/KT7A went from about .252 to .237 (10,000,000 digit exponents, 1792K FFT) per iteration just by switching from "sdram 8/10" (AKA slow default) and CAS 3 to "normal" and CAS 2. I tried the "fast" and "turbo" memory settings, but they made the machine very unstable - though they also got the iteration timings down to around .222 at fastest settings. Best bet would be to push the FSB and memory settings as high as you can get them to go, dropping the CPU clock multiplier if you have to, while keeping a close eye on the stability of the machine. Prime is VERY memory-intensive - one of the reasons P4s beat Athlons on it (SSE2 is a bigger reason, from what I've seen).

2003-03-07, 19:59	#33
Squirly Mar 2003 3 Posts	Intel(R) Pentium(R) 4 CPU 3.06GHz CPU speed: 3703.12 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes TLBS: 64 Prime95 version 23.2, RdtscTiming=1 Best time for 384K FFT length: 12.400 ms. Best time for 448K FFT length: 14.606 ms. Best time for 512K FFT length: 16.618 ms. Best time for 640K FFT length: 20.885 ms. Best time for 768K FFT length: 25.383 ms. Best time for 896K FFT length: 29.774 ms. Best time for 1024K FFT length: 33.815 ms. Best time for 1280K FFT length: 42.912 ms. Best time for 1536K FFT length: 51.485 ms. Best time for 1792K FFT length: 63.633 ms. Best time for 2048K FFT length: 69.308 ms.

2003-04-15, 05:47	#34
QuintLeo Oct 2002 Lost in the hills of Iowa 700₈ Posts	I'm learning to like Thoroughbreds. XP1800+ on a Asus A7V333 pulling about 1833 Mhz (actual clock) on 166 FSB at 11 multiplier. 1792k FFT down around .188 - and I don't think I've found the limit on the FSB yet (total clock limit on this CPU seems to be around 1850-1860ish). Also runs 5 degrees C or a little more COOLER even when overclocking 10+% faster than I ever managed to get a Palomino XP1800+ up to.... I'll have the actual benchmarks posted sometime later this week - still finalizing some stuff on that machine.

2003-04-18, 23:21	#35
QuintLeo Oct 2002 Lost in the hills of Iowa 2⁶·7 Posts	AMD Athlon(TM) XP 1800+ (Thoroughbred) CPU speed 1800 MHz (150Mhz FSB x12 multiplier) DDR PC2700 CAS2.5 @ 150 Mhz CPU features RDTSC, CMOV, PREFETCH, MMX, SSE L1 cache size 64 KB L2 cache size 256 KB L1 cache line size 64 bytes L2 cache line size 64 bytes L1 TLBS 32 L2 TLBS 256 Prime95 version 23.2, RdtscTiming=1 Best time for 384K FFT length 46.141 ms. Best time for 448K FFT length 52.154 ms. Best time for 512K FFT length 58.489 ms. Best time for 640K FFT length 73.452 ms. Best time for 768K FFT length 89.325 ms. Best time for 896K FFT length 104.048 ms. Best time for 1024K FFT length 119.276 ms. Best time for 1280K FFT length 151.989 ms. Best time for 1536K FFT length 181.900 ms. Best time for 1792K FFT length 217.479 ms. Best time for 2048K FFT length 244.790 ms. AMD Athlon(TM) XP 1800+ (Thoroughbred) CPU speed 1833.33 MHz (166 FSB x11 Multiplier) DDR PC2700 CAS2.5 @ 166 Mhz CPU features RDTSC, CMOV, PREFETCH, MMX, SSE L1 cache size 64 KB L2 cache size 256 KB L1 cache line size 64 bytes L2 cache line size 64 bytes L1 TLBS 32 L2 TLBS 256 Prime95 version 23.2, RdtscTiming=1 Best time for 384K FFT length 38.107 ms. Best time for 448K FFT length 41.999 ms. Best time for 512K FFT length 46.553 ms. Best time for 640K FFT length 59.334 ms. Best time for 768K FFT length 72.688 ms. Best time for 896K FFT length 84.772 ms. Best time for 1024K FFT length 97.332 ms. Best time for 1280K FFT length 129.410 ms. Best time for 1536K FFT length 154.900 ms. Best time for 1792K FFT length 186.297 ms. Best time for 2048K FFT length 208.178 ms. AMD Athlon(TM) XP 1800+ (Thoroughbred) CPU speed 1827.50 MHz (174 FSB x10.5x Multiplier) DDR PC2700 CAS2.5 @ 174 Mhz CPU features RDTSC, CMOV, PREFETCH, MMX, SSE L1 cache size 64 KB L2 cache size 256 KB L1 cache line size 64 bytes L2 cache line size 64 bytes L1 TLBS 32 L2 TLBS 256 Prime95 version 23.2, RdtscTiming=1 Best time for 384K FFT length 37.431 ms. Best time for 448K FFT length 40.995 ms. Best time for 512K FFT length 45.425 ms. Best time for 640K FFT length 57.962 ms. Best time for 768K FFT length 71.206 ms. Best time for 896K FFT length 83.125 ms. Best time for 1024K FFT length 95.108 ms. Best time for 1280K FFT length 126.465 ms. Best time for 1536K FFT length 151.975 ms. Best time for 1792K FFT length 182.876 ms. Best time for 2048K FFT length 204.786 ms. Actual long-term usage generates a mix of 0.184 and 0.185 timings with these settings. This is the setting I'm sticking with, as it seems to be the fastest on this machine. CPU does NOT like running at anything over about 1850Mhz reliably - not too bad for a 1533Mhz rated CPU running without air conditioning and air cooled at stock voltage.... AMD Athlon(TM) XP 1800+ (Thoroughbred) CPU speed 1848.06 MHz (176 FSB x10.5 Multiplier) DDR PC2700 CAS2.5 @ 176 Mhz CPU features RDTSC, CMOV, PREFETCH, MMX, SSE L1 cache size 64 KB L2 cache size 256 KB L1 cache line size 64 bytes L2 cache line size 64 bytes L1 TLBS 32 L2 TLBS 256 Prime95 version 23.2, RdtscTiming=1 Best time for 384K FFT length 41.643 ms. Best time for 448K FFT length 46.794 ms. Best time for 512K FFT length 52.470 ms. Best time for 640K FFT length 65.948 ms. Best time for 768K FFT length 81.202 ms. Best time for 896K FFT length 93.854 ms. Best time for 1024K FFT length 108.005 ms. Best time for 1280K FFT length 142.583 ms. Best time for 1536K FFT length 171.413 ms. Best time for 1792K FFT length 206.748 ms. Best time for 2048K FFT length 231.622 ms. The last result is ODD - should have been faster at 176Mhz than 174 Mhz. I suspect some sort of divider in the BIOS/chipset that's non-configurable is kicking in at over 175Mhz FSB and slowing the RAM access down. All of these tests done on a ASUS A7V333-X motherboard (VIA KT333 chipset) with BIOS v1.002 I could learn to like Thoroughbreds.... 9-)

2003-05-12, 01:03	#36
nomadicus Jan 2003 North Carolina F6₁₆ Posts	Dell, Inspiron 5100 laptop Prime95 V23.3.1 Intel(R) Pentium(R) 4 CPU 2.53GHz CPU speed: 2525.04 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.3, RdtscTiming=1 Best time for 384K FFT length: 15.677 ms. Best time for 448K FFT length: 18.392 ms. Best time for 512K FFT length: 21.284 ms. Best time for 640K FFT length: 26.249 ms. Best time for 768K FFT length: 31.453 ms. Best time for 896K FFT length: 37.579 ms. Best time for 1024K FFT length: 41.893 ms. Best time for 1280K FFT length: 56.969 ms. Best time for 1536K FFT length: 69.219 ms. Best time for 1792K FFT length: 81.881 ms. Best time for 2048K FFT length: 93.066 ms.

2003-06-19, 23:49	#37
Xyzzy "Mike" Aug 2002 5×17×97 Posts	Untweaked Shuttle SN41G2 barebones system, memory set to synchronous, FN41 motherboard... AMD Athlon(tm) XP 2500+ CPU speed: 1829.93 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE L1 cache size: 64 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 64 bytes L1 TLBS: 32 L2 TLBS: 256 Prime95 version 23.4, RdtscTiming=1 Best time for 384K FFT length: 32.369 ms. Best time for 448K FFT length: 36.468 ms. Best time for 512K FFT length: 39.934 ms. Best time for 640K FFT length: 52.538 ms. Best time for 768K FFT length: 65.003 ms. Best time for 896K FFT length: 75.540 ms. Best time for 1024K FFT length: 87.432 ms. Best time for 1280K FFT length: 112.174 ms. Best time for 1536K FFT length: 134.566 ms. Best time for 1792K FFT length: 164.620 ms. Best time for 2048K FFT length: 180.681 ms.

2003-06-23, 18:43	#39
TauCeti Mar 2003 Braunschweig, Germany 11100010₂ Posts	Well, i benched my new i875 system at work today (MSI NEO board bios 1.5 - 2*TwinX512CorsairXMS3200LL@2-3-3-6). If i am not totally mistaken, i got a 70ms bench on the 2048FFT with V23.4 at only 2.86GHz (P4C2.6) with DDR-420. Using the i875 with DDR-400 and a 3.1GHz clock (5:4 mem) i got a 68ms on the 2048FFT. Reading the numbers here i cannot believe it. I try to post the full bench data tomorrow if i did not dream it hehe ;) I use the Intel boxed stock air cooling solution and i really don't want to increase vcore to get some more Megahurts - that box should last 3 years to work with. Cheers, Tau

2003-06-23, 20:48	#40
delta_t Nov 2002 Anchorage, AK 3×7×17 Posts	Wow, TauCeti that's pretty fast if true. BUT how does it compare to this speed demon: CPU type: 486 DX4-100 CPU Speed: 100 L2 cache size: ? L2 cache speed:? Memory Type / Bus Speed: ? OS: Windows 95 Notes: Dell Latitude XP laptop, 20MB RAM Intel 486 processor CPU speed: 100.00 MHz L1 cache size: unknown L2 cache size: unknown L1 cache line size: unknown L2 cache line size: unknown Prime95 version 22.12, RdtscTiming=1 Best time for 256K FFT length: 5644.112 ms. Best time for 320K FFT length: 7487.132 ms. Best time for 384K FFT length: 8896.265 ms. Best time for 448K FFT length: 10872.523 ms. Best time for 512K FFT length: 11809.254 ms. Best time for 640K FFT length: 15911.686 ms. Best time for 768K FFT length: 19052.907 ms. Best time for 896K FFT length: 23010.530 ms. Best time for 1024K FFT length: 25308.399 ms. Best time for 1280K FFT length: 34091.262 ms. Best time for 1536K FFT length: 56942.322 ms. Best time for 1792K FFT length: 150014.057 ms.

2003-06-23, 21:13	#41
sdbardwick Aug 2002 North San Diego County 1255₈ Posts	delta_t: Don't make me break out my 386SX16... :(

2003-06-23, 21:35	#42
S3SJK Dec 2002 3×5 Posts	Wow, I think my Ti85 could beat that! Well perhaps not, but it would be a close one! :D

2003-06-23, 23:42	#43
delta_t Nov 2002 Anchorage, AK 3·7·17 Posts	I started a new thread for "Who has the lowest benchmarks?" http://www.mersenneforum.org/viewtopic.php?t=745 So bring on those old dinosaurs.

2003-06-24, 08:13	#44
TauCeti Mar 2003 Braunschweig, Germany 2·113 Posts	The i875 chipset works like a charm with prime95 (MSI NEO board bios v1.5, mem 2-3-3-6 timings with 2.8V in-spec voltage (Corsair TwinX3200LL), vCore default, stock intel boxed cooling) (EDIT: Bench 2 was only stable for about 60 minutes but the settings seem to work with slightly raised vcore) Bench 1: FSB at 880MHz(220 quad), mem at 420MHz Intel(R) Pentium(R) 4 CPU 2.60GHz CPU speed: 2873.47 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.4, RdtscTiming=1 Best time for 384K FFT length: 12.300 ms. Best time for 448K FFT length: 14.587 ms. Best time for 512K FFT length: 16.588 ms. Best time for 640K FFT length: 19.966 ms. Best time for 768K FFT length: 24.273 ms. Best time for 896K FFT length: 28.798 ms. Best time for 1024K FFT length: 32.372 ms. Best time for 1280K FFT length: 42.255 ms. Best time for 1536K FFT length: 52.235 ms. Best time for 1792K FFT length: 61.950 ms. Best time for 2048K FFT length: 69.863 ms. System draws 70W idle and about 133W with prime95 torture-test - that is about 9.3Ws/2048FFT. Bench 2: FSB at 960Mhz (240quad), mem at 400MHz Intel(R) Pentium(R) 4 CPU 2.60GHz CPU speed: 3133.24 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.4, RdtscTiming=1 Best time for 384K FFT length: 11.437 ms. Best time for 448K FFT length: 13.554 ms. Best time for 512K FFT length: 15.425 ms. Best time for 640K FFT length: 18.535 ms. Best time for 768K FFT length: 22.552 ms. Best time for 896K FFT length: 26.662 ms. Best time for 1024K FFT length: 29.951 ms. Best time for 1280K FFT length: 39.310 ms. Best time for 1536K FFT length: 48.347 ms. Best time for 1792K FFT length: 57.434 ms. Best time for 2048K FFT length: 64.950 ms. System draws 70W idle and about 140W with prime95 torture-test - that is about 9.1Ws/2048FFT. Tau

2003-06-24, 16:51	#46
toferc Aug 2002 2×3×5 Posts	Intel(R) Xeon(TM) CPU 3.06GHz CPU speed: 3056.78 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.4, RdtscTiming=1 Best time for 384K FFT length: 12.009 ms. Best time for 448K FFT length: 14.202 ms. Best time for 512K FFT length: 16.217 ms. Best time for 640K FFT length: 19.573 ms. Best time for 768K FFT length: 23.736 ms. Best time for 896K FFT length: 27.997 ms. Best time for 1024K FFT length: 31.557 ms. Best time for 1280K FFT length: 41.665 ms. Best time for 1536K FFT length: 50.859 ms. Best time for 1792K FFT length: 60.424 ms. Best time for 2048K FFT length: 68.839 ms.

2003-07-26, 18:32	#47
patrik "Patrik Johansson" Aug 2002 Uppsala, Sweden 5²·17 Posts	CPU: Pentium 2.40C (800MHz FSB) Memory: PC3200 DDR OS: RedHat Linux 8.0 Motherboard: ASUS P4S800 Intel(R) Pentium(R) 4 CPU 2.40GHz CPU speed: 2405.50 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE, SSE2 L1 cache size: 8 KB L2 cache size: 512 KB L1 cache line size: 64 bytes L2 cache line size: 128 bytes TLBS: 64 Prime95 version 23.5, RdtscTiming=1 Best time for 384K FFT length: 15.418 ms. Best time for 448K FFT length: 18.333 ms. Best time for 512K FFT length: 20.869 ms. Best time for 640K FFT length: 24.887 ms. Best time for 768K FFT length: 30.304 ms. Best time for 896K FFT length: 35.969 ms. Best time for 1024K FFT length: 40.600 ms. Best time for 1280K FFT length: 53.794 ms. Best time for 1536K FFT length: 64.778 ms. Best time for 1792K FFT length: 77.894 ms. Best time for 2048K FFT length: 87.636 ms.

2003-08-05, 22:12	#50
markhl Apr 2003 California 2²×23 Posts	23.6 substantially the same speed as 23.5: 1024*768, 16-bit, 70 Hz, Matrox Millennium PCI card Intel(R) Pentium(R) III processor CPU speed: 863.95 MHz CPU features: RDTSC, CMOV, PREFETCH, MMX, SSE L1 cache size: 16 KB L2 cache size: 256 KB L1 cache line size: 32 bytes L2 cache line size: 32 bytes TLBS: 64 Prime95 version 23.6, RdtscTiming=1 Best time for 384K FFT length: 89.495 ms. Best time for 448K FFT length: 106.914 ms. Best time for 512K FFT length: 119.046 ms. Best time for 640K FFT length: 157.156 ms. Best time for 768K FFT length: 187.249 ms. Best time for 896K FFT length: 221.636 ms. Best time for 1024K FFT length: 252.722 ms. Best time for 1280K FFT length: 336.631 ms. Best time for 1536K FFT length: 395.246 ms. Best time for 1792K FFT length: 492.558 ms. Best time for 2048K FFT length: 538.577 ms.