Forum > GPU crunching

GTS 450

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Pepi:
From CUDA 3.1 log

* Adds support for CUDA Toolkit 3.1 which includes significant performance increases for double precision math operations

It look like a boost when CUDA 2.3 was released, and she was way faster then 2.2 :)

I was testing Lunatics verse 6.10 stock, and Lunatics was only faster 10 seconds ( on 364 seconds result)
So hope that  3.1 or even 3.2 and more optimized application from Lunatics will make this difference larger .
Also must notice one thing: 240 has only 96 cores and 450 has 192. But 450 is not double faster then 240. And has also much more clocks of shaders, memory and gpu. Why?

Raistmer:
Boost not for SETI cause it's single float, not double

Pepi:
And second one?
....240 has only 96 cores and 450 has 192. But 450 is not double faster then 240.....

Jason G:
Also, Cuda 3.1 has bugs (when running Multi-GPU) that makes it not useful here.  Cuda 3.2 fixes these but is not released to the public yet. (Guess it is)

Jason G:

--- Quote from: Pepi on 28 Sep 2010, 07:02:49 pm ---And second one?
....240 has only 96 cores and 450 has 192. But 450 is not double faster then 240.....
--- End quote ---

Also Fermi optimisation has only just begun.  There is a long way to go.  For now the focus has been on getting a build that runs with less errors.

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