mersenneforum.org  

Go Back   mersenneforum.org > Great Internet Mersenne Prime Search > Hardware > GPU Computing

Reply
 
Thread Tools
Old 2019-02-07, 00:19   #1
kracker
ἀβουλία
 
kracker's Avatar
 
"Mr. Meeseeks"
Jan 2012
California, USA

17·127 Posts
Default barebones/light RX 570 for $99

Pretty sure nothing else can come close to this one for the price...

(light aka only one DVI-D output, came in a brown cardboard box, literally nothing fancy)

https://www.amazon.com/Sapphire-Rade.../dp/B07MCDNQX2


Getting ~500ish GHz/days on 90M exponent 76 to 77 bits right now on mfakto,
For gpuowl, 80M/4608K FFT - 4.24 ms/iter
70M/4096K FFT - 3.53 ms/iter

Last fiddled with by kracker on 2019-02-07 at 00:20
kracker is offline   Reply With Quote
Old 2019-02-07, 01:05   #2
Mark Rose
 
Mark Rose's Avatar
 
"/X\(‘-‘)/X\"
Jan 2013
Ͳօɾօղէօ

2,789 Posts
Default

That's compelling for gpuowl!
Mark Rose is offline   Reply With Quote
Old 2019-02-07, 02:31   #3
xx005fs
 
"Eric"
Jan 2018
USA

CB16 Posts
Default

Dang they PL'ed it to 75W i assume as there's no external 6 pin connector. This would be great for building a high dense PRP testing rig as not a lot of cooling will be required. For 99$ this is an absolute steal. If the card is tweakable (which I assume it will cuz it's AMD), then undervolt it to push for higher clock as the efficiency is already stunning and undervolt will only push that efficiency even higher.
xx005fs is offline   Reply With Quote
Old 2019-02-07, 03:55   #4
kracker
ἀβουλία
 
kracker's Avatar
 
"Mr. Meeseeks"
Jan 2012
California, USA

17×127 Posts
Default

Quote:
Originally Posted by xx005fs View Post
Dang they PL'ed it to 75W i assume as there's no external 6 pin connector. This would be great for building a high dense PRP testing rig as not a lot of cooling will be required. For 99$ this is an absolute steal. If the card is tweakable (which I assume it will cuz it's AMD), then undervolt it to push for higher clock as the efficiency is already stunning and undervolt will only push that efficiency even higher.
There is a single 8 (6+2) power connector. And yes... it is as tweakable as any other card (core clock, memory clock, power limits (need to push this one up from the beginning since running mfakto will hit the 130W power limit easily and it'll start dropping the core clock... right now it's using around 150W.)
kracker is offline   Reply With Quote
Old 2019-02-07, 05:24   #5
xx005fs
 
"Eric"
Jan 2018
USA

7·29 Posts
Default

Quote:
Originally Posted by kracker View Post
There is a single 8 (6+2) power connector. And yes... it is as tweakable as any other card (core clock, memory clock, power limits (need to push this one up from the beginning since running mfakto will hit the 130W power limit easily and it'll start dropping the core clock... right now it's using around 150W.)
Interesting... the screenshot on amazon shows no power connector, weird... I think radeon cards are generally more fit towards PRP or LL (if implemented on OpenCL properly unlike cllucas which is very slow compared to PRP on GPUOWL) than TF because the int32 perf is very weak compared to turing/volta, but the double precision is quite good along with memory bw.
xx005fs is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
First light xilman Astronomy 17 2018-10-08 22:15
What if dark matter is actually light?(emitted light) jasong jasong 32 2014-01-04 07:50
Changes to the speed of light. Flatlander Homework Help 67 2011-01-22 13:37
Will we ever go faster than the speed of light? ixfd64 Science & Technology 7 2009-07-19 14:46
Speed of light mfgoode Science & Technology 92 2006-06-19 09:04

All times are UTC. The time now is 22:54.

Wed Jul 8 22:54:48 UTC 2020 up 105 days, 20:27, 0 users, load averages: 1.07, 1.45, 1.51

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.