On 04/07/2011 03:26 PM, Vincent Diepeveen wrote: > > On Apr 7, 2011, at 6:25 PM, Gus Correa wrote: > >> Vincent Diepeveen wrote: >> >>> GPU monster box, which is basically a few videocards inside such a >>> box stacked up a tad, wil only add a couple of >>> thousands. >>> >> >> This price may be OK for the videocard-class GPUs, >> but sounds underestimated, at least for Fermi Tesla. > > Tesla (448 cores @ 1.15Ghz, 3GB ddr5) : $2.200 > note there is a 6 GB version, not aware of price will be $$$$ i bet. > or AMD 6990 (3072 PE's @ 0.83Ghz, 4GB ddr5) : 519 euro > > VERSUS > > 8 socket Nehalem-ex, 512GB ram DDR3, basic configuration, $205k. > > Factor 100 difference to those cards. > > A couple of thousands versus a couple of hundreds of thousands. > Hope i made my point clear. > >
You can't do a direct comparison between a CPU and a GPU. There are many things that GPUs can't do (or can't do well) that are still better done on a CPU. Even NVidia acknowledges in most of their promotional and educational literature. One example would be a code with a lot of branching. -- Prentice _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
