Hi all, This week Nvidia has also announced the GeForce GTX 690 with two Kepler Chips [1]. That will make a total of 3072 CUDA cores @ 915MHz to 1019MHz and will perform like two GTX 680s in SLI mode [2], but more energy efficient.
I'd really be interested if parallelization would be a bottleneck for the Kepler chips compared to the Fermi ones. Has anyone already run some benchmarks on Kepler? Best, Oliver [1] http://nvidianews.nvidia.com/Releases/NVIDIA-Unveils-GeForce-GTX-690-Dual-Graphics-Card-Combines-World-s-Fastest-Gaming-Performance-With-Sleek-Sexy-Design-7c1.aspx [2] http://www.geforce.com/whats-new/articles/article-keynote/ On Wed, May 2, 2012 at 10:16 AM, Peter C. Lai <[email protected]> wrote: > On 2012-05-02 06:13:04PM +0200, Mirco Wahab wrote: >> Hello Peter, >> >> Am 02.05.2012 17:44, schrieb Peter C. Lai: >> >> > You can wait for ivy bridge, then stick some Kepler GPUs (nvidia gtx >> > 680) in it. That should max the performance. asm is pretty much stagnant >> > for general purpose procs since core2 came out. >> >> Is this true? >> >> To my knowledge, the Fermi GPU (GF-110, eg. GTX-580) is >> a 16 processor (streaming multiprocessor, SM) system, each >> processor having 32 cores running at 1.5 GHz, and the >> Kepler-1 (GK-104, eg. GTX-680) an 8 processor system >> with 192 cores per processor at 1GHz. >> Because on the Fermi each SM has more L1 cache than >> each SM on the Kepler-1 and because it might be harder >> to saturate 192 cores in a compute-scenario, I'd expect >> the 580 (GF-110) to be significant(?) faster in the >> next Gromacs (4.6). Maybe somebody tested this already. >> >> (Here in Germany, I can by GTX-580/3GB for ~325€ + Tax.) >> >> Regards, >> >> M. > > You might be. I do have a collaborator in France who chooses to use GTX 580 > with NAMD and is eschewing the Keplers. I think I saw a bench somewhere > for Kepler compute; not sure if I saw that much difference (but you will > be paying the price though). In that case stick with Fermis for now :) -- gmx-users mailing list [email protected] http://lists.gromacs.org/mailman/listinfo/gmx-users Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/Search before posting! Please don't post (un)subscribe requests to the list. Use the www interface or send it to [email protected]. Can't post? Read http://www.gromacs.org/Support/Mailing_Lists
