[Beowulf] Re: Beowulf Digest, Vol 55, Issue 2
maurice at harddata.com
Wed Sep 3 15:51:52 PDT 2008
Li, bo wrote:
> From: "Li, Bo" <libo at buaa.edu.cn>
> Subject: Re: [Beowulf] gpgpu
> It seemed that you had got a very good example for GPGPU. As I said before, it's not the time for GPGPU to do the DP calculation at the moment. If you can bear SP computation, you will find more about it.
> NVidia just sent me some special offer about their Tesla platforms, which said that the workstation equipped with two GTX280 level professional cards costs about $5000, not bad. But my intention is still to lower the core frequency of a gaming card, and use it for computation.
> Li, Bo
Looking at AMD/ATI Firestream and 4850 pricing, it is not too bad:
AMD FIRESTREAM 9250 STREAM PROCESSOR (P/N: 100-505563) $880
VISIONTEK RADEON HD4870X2 2GB PCI-E (P/N: 900250) $575
VISIONTEK RADEON HD 4870 512MB PCI-E (P/N: 900244) $355
The 4870 and X2 also run the AMD code.
So, given a decent machine, with 4 cores and a pair of the 4870X2, one
can achieve some pretty amazing GPU
performance levels for a system well under $4,000.
With dualX2s ( 4 GPU engines) around $4700 ( extra PSU capacity and
cooling is needed for that level).
I hear that AMD have a new Firestream coming, with the 48x0 family chips
on it, but that will likely be a bit on the pricier side..
Anyway, the Firestream has GPUs with Double-Precision Floating Point.
Something the nVidia offerings do not.
With our best regards,
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/Hard Data Ltd. FAX: 01-780-456-9772/
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