On Fri, Dec 28, 2012 at 1:54 AM, Mu Xia <muxiachuixue.163.com> wrote:
> Hi all,
>
>
> I am planning to buy a GTX680/GTX580 card to accelerate the calculation of
> AMBER11. The following is the hardware information of my workstation.
>
>
> Motherboard: ASUS Z8PE-D12X
> CPU: 2 x Intel(R) Xeon(R) CPU X5690 . 3.47GHz (12 cores) (Max TDP: 130W
> each CPU)
> Slot: 1 x16 PCI-E available
> Memory: 24 GB
> Power: 1200W
>
>
> The seller told me that the motherboard is a server model rather than
> workstation and thus does not support GTX580/GTX680 well and the
> performance of the GPU could only be achieved 50% maybe. I have gone to the
> official websites of ASUS and I am wondering what the seller said.
>
I don't think this is accurate. The major differences between the HPC
cards (e.g., the M2070, etc.) and the standard gaming cards (e.g., the
GTX580) is more rigorous quality control and buffered memory. In terms of
processor architecture, I think both families of cards are the same. Were
you given a reason why they expected 50% performance?
Here are two questions:
> 1. Could my workstation 100% support GTX580/GTX680 ?
> 2. As I am using AMBER11, which card is better for AMBER11 on
> acceleration? GTX680 or GTX580? Maybe you can recommend me another card.
>
Amber11 does not support the Kepler hardware (and never will). Therefore,
only Amber 12 can actually use the GTX 680. I would suggest upgrading to
Amber 12. Amber 12 with a GTX 680 will almost certainly outperform Amber
11 on 2 GTX 580 cards (and Amber 12 + GTX 680 is probably about the same
cost as two GTX580 cards, at least in the US).
HTH,
Jason
--
Jason M. Swails
Quantum Theory Project,
University of Florida
Ph.D. Candidate
352-392-4032
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Received on Fri Dec 28 2012 - 09:30:03 PST
