[gmx-users] GPU recommendations

[Keith Callenberg]

I went ahead and ordered the GTX 680 before I saw your reply. It was $200,
so roughly $100 cheaper than a GTX 770. I might have ordered the 770 had I
noticed it. I had decided I couldn't afford a 780 but wasn't aware of the
770.

In any case I think I will be happy with the 680 as long as the memory test
gives good results!

Thank you,

Keith


On Tue, Aug 19, 2014 at 10:35 AM, Szilárd Páll <pall.szilard at gmail.com>
wrote:

> Hi,
>
> No need to worry, GTX 680 is quite recent and will be supported by
> GROMACS for at least a couple of years longer. Just make sure this
> second hand GPU is i) stable (run cuda-memtest) ii) is sold cheaper
> than a GTX 770 (which is faster).
>
> Cheers,
>
> --
> Szilárd
>
>
> On Mon, Aug 18, 2014 at 4:34 PM, Keith Callenberg
> <keithcallenberg at gmail.com> wrote:
> > Hello GMX-Users,
> >
> > I have the option of buying a used GTX 680 in good condition for a
> > reasonable price. I realize there are faster cards on the market if I
> were
> > buying new, but I have a limited budget. Is there anything I should worry
> > about with respect to compatibility with future GROMACS versions?
> >
> > I'm not worried so much about the card's diminishing competitiveness over
> > time as new cards come out, as much as I'm worried that newer versions of
> > GROMACS will require some feature that an older card like the GTX 680
> > doesn't support. I've had earlier GPUs that were effectively outdated by
> > CUDA compute capability version. Are there any things like CUDA compute
> > capability that I should consider looking 1-2 years ahead?
> >
> > Thanks,
> > Keith Callenberg
> > --
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