GPU vs CPU

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Mate 2u
Mate 2u 2011-4-28
Hi, For calculations which would perform faster. A Intel I7 990x overclocked, or a GPU Nvidia GeForce 590x ?

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回答（3 个）

Jason Ross
Jason Ross 2011-4-29
As the others have mentioned, there is no easy answer to this question. The answer is highly dependent upon the functions you are using, how you are using them and if they are supported for GPU calculations. As well as system configuration considerations and size of your problem set.
I'd suggest reviewing the product documentation for Parallel Computing Toolbox, as well as for the individual functions you call to see if they have been enabled for GPU computing. You might want to also run some of the available demos.
http://www.mathworks.com/gpu/
Mate 2u
Mate 2u 2011-4-28
any help?
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Walter Roberson
Walter Roberson 2011-4-28
You're expecting us to be able to definitively answer vague hardware-specific questions on short notice ???
DEFINE YOUR TERMS. Overclocked *HOW* ? With what kind of memory, clocked with which RAS and which multiplier? With which motherboard? The optimum hardware for the GeForce is *not* the same as the optimum hardware for the i7-990x.

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Walter Roberson
Walter Roberson 2011-4-28
http://liquidnitrogenoverclocking.com has the fastest known i7 990x overclocked, and specifically benchmarks MATLAB. But do read the name of the site carefully, because it is literal.
This is a software forum, not a hardware forum.
Your question cannot be answered, because performance depends upon the code you are implementing. The GeForce is not a general purpose CPU so to use it you would need to define what CPU you wished with it.

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