VMD-L Mailing List

From: Debostuti Ghoshdastidar (debostutighosh_at_gmail.com)
Date: Tue Mar 13 2018 - 09:55:26 CDT

Thanks John

That was very helpful.

Debostuti

On 13-Mar-2018 20:06, "John Stone" <johns_at_ks.uiuc.edu> wrote:

> Hi,
> The major detraction of the particular GPU model you list is
> that it uses DDR3 RAM rather than GDDR5 RAM. The peak memory
> bandwidth of the card with DDR3 is 16GB/sec. With GDDR5 the same
> GPU gets 40GB/sec bandwidth. If you're running CUDA-enabled versions
> of VMD on this machine, then things like the "QuickSurf" representation
> and GPU ray tracing will run almost 3x faster on the GDDR5 version of
> that GPU than on the DDR3 version. I understand that there's an
> economic trade-off here, so you'll have to use your best judgement about
> what will give you the best the value (for what you plan to use it for)
> for your money.
>
> Best regards,
> John Stone
> vmd_at_ks.uiuc.edu
>
> On Tue, Mar 13, 2018 at 05:35:32PM +0530, Debostuti Ghoshdastidar wrote:
> > Dear All
> >
> > I have always used an NVidia GeForce card on my Lab system for running
> > VMD. However, if I purchase a laptop with an Nvidia N16S-GTR DDR3L 2G
> card
> > (in place of the GDDR5-Vram that is included in the GeForce series)
> would
> > it be VMD compatible?
> >
> > Thanks in advance for any advise on this
> >
> > --
> > Debostuti Ghosh Dastidar
> > DST SERB National Post-Doctoral Fellow
> > Molecular Biophysics Unit
> > Indian Institute of Science, Bangalore
>
> --
> NIH Center for Macromolecular Modeling and Bioinformatics
> Beckman Institute for Advanced Science and Technology
> University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
> http://www.ks.uiuc.edu/~johns/ Phone: 217-244-3349
> http://www.ks.uiuc.edu/Research/vmd/
>