Message boards :
Number crunching :
GPU card update?
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Author | Message |
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Send message Joined: 22 May 10 Posts: 17 Credit: 139,881,493 RAC: 0 |
Hi all, I have been crunching with a GTX 260 for the past two years but think it is finally time to upgrade. I settled (pending community input) on a GTX 660ti. GTX 660 ti model: http://www.microcenter.com/product/397952/02G-P4-3660-KR_NVIDIA_GeForce_GTX_660_Ti_2048MB_GDDR5_PCIe_30_x16_Video_Card Will this card meet the requirements for crunching Milkyway@Home & is it by best option in the 200-300 price range? Thanks! |
Send message Joined: 24 Jul 12 Posts: 40 Credit: 7,123,301,054 RAC: 0 |
Hi all, Jack, The Nvidia cards don't have very good double precision throughput. They are fine single precision crunchers, but MW requires DP calculations. AMD cards are much superior for DP work. I would recommend an HD 7950 for the price range you quoted. Joe |
Send message Joined: 22 May 10 Posts: 17 Credit: 139,881,493 RAC: 0 |
That's great information thanks. I cant imagine the speed differential I will see going from Nvidia to AMD and a ~1000 benchmark to a ~4000 benchmark. I am already running tasks around 16 mins. Those will be really short WU's. |
Send message Joined: 24 Jul 12 Posts: 40 Credit: 7,123,301,054 RAC: 0 |
An HD 7950 will run 1 WU in 1 min. They are around $299.99 with mail rebate from Microcenter. Haven't checked prices elsewhere. I run 3 of them spread across 2 systems. They also perform well SP on other projects that have OpenCL WUs such as Einstein. Joe |
Send message Joined: 8 May 09 Posts: 3319 Credit: 520,315,108 RAC: 20,761 |
An HD 7950 will run 1 WU in 1 min. They are around $299.99 with mail rebate from Microcenter. Haven't checked prices elsewhere. I run 3 of them spread across 2 systems. They also perform well SP on other projects that have OpenCL WUs such as Einstein. AND with an app_info file you can run 2 units at once, PROVIDING you have GOOD cooling!!! |
Send message Joined: 22 May 10 Posts: 17 Credit: 139,881,493 RAC: 0 |
Very interesting...how would I go about doing this? :) |
Send message Joined: 18 Jul 09 Posts: 300 Credit: 303,562,776 RAC: 0 |
You would do this with an app_info file. When you get your new card, ask in this forum for someone to post one and for instructions how to install it. |
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