20160716, 22:08  #1 
Dec 2011
After milion nines:)
1420_{10} Posts 
Is any GTX 750 the GeForce GTX 750 Ti owner here?
I would like to test and to compare it with my GT 640 card in meter of cuda sieving.
So if is someone that have any of those cards pleae PM. Thanks 
20160717, 10:58  #2 
Sep 2006
The Netherlands
704_{10} Posts 
hi, i'm sure TheJudger reacts soon.
GTX 750 is Maxwell series. So that's 512 cores. Or better 128 cores * 4 * 1.02Ghz GTX 640 is Kepler series. 384 cores or 192 cores * 2 * 0.9Ghz So it's 4 Streaming Multiprocessors (SM's) versus 2. http://docs.nvidia.com/cuda/cudacp...ionthroughput In 24 bits code TF (up to 72 bits) probably it's just Ghz * total number of cores that determines performance. In 32 bits code TF (more than 72 bits) dominating factor will probably be integer MultiplyAdd throughput. That's just 32 units each SM for the 640. So 64 for entire GPU, versus Maxwell will probably completely annihilate it there. 
20160717, 15:40  #3 
"/X\(‘‘)/X\"
Jan 2013
3×977 Posts 
There are five versions of the GT 640. The plain OEM model is Fermi based. So it depends on which card it is exactly.
https://en.m.wikipedia.org/wiki/List...rce_600_Series 
20160717, 17:18  #4  
Dec 2011
After milion nines:)
2^{2}×5×71 Posts 
Quote:


20160717, 17:40  #5  
"Kieren"
Jul 2011
In My Own Galaxy!
2·3·1,693 Posts 
Quote:
The attached image is the Fermi version, GF116 chip. 

20160717, 18:08  #6 
Dec 2011
After milion nines:)
2^{2}×5×71 Posts 

20160717, 18:59  #7 
Just call me Henry
"David"
Sep 2007
Cambridge (GMT/BST)
13355_{8} Posts 
On a 750Ti (5 SMs):
Exponent 79186511 GPUSievePrimes 80k 7071: 159 Ghzd/day 7677: 158 Ghzd/day Is there something I am missing? Surely after changing kernels at 76 it should noticeably slow down. It only seemed to run 32bit kernels. I assume that is what is optimal on Maxwell. Is there an ini setting which changes this? 
20160717, 21:08  #8 
"Victor de Hollander"
Aug 2011
the Netherlands
2^{3}×3×7^{2} Posts 
You might also want to look at a used GTX960 if it fits within your budget ($150).
1024 CUDA cores @1200MHz But it does rquire a 6 or 8pin PEG connector.... 
20160717, 21:10  #9 
Dec 2011
After milion nines:)
1420_{10} Posts 

20160717, 21:14  #10 
"Curtis"
Feb 2005
Riverside, CA
13·367 Posts 
What specific test are you looking for results from, under what OS?

20160717, 21:18  #11  
Dec 2011
After milion nines:)
2^{2}×5×71 Posts 
Quote:
Since I get on my card 80Mp/s ( one instance) and 100Mp/s ( two instances) and since this card is in my range I can spend some money, I try to determine how fast is that card Can can you test data if you wish: just start , wait few minutes to get stable speed and send me speed you get 

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