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ATI Stream Compared to NVidia / CUDA

To answer this question, and not just a public opinion poll, I will ask it like this:

Are there any third-party reports that compare the ATI Stream infrastructure with the NVidia CUDA infrastructure (i.e. not from ATI or NVidia talking up)?

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Tom Hardware has an article, ATI Stream: Finally, CUDA has competition (2009-06-15).

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I do not know such a comparison, but I will add personal experience to the mix. Perhaps between the users here we can develop a worthy comparison / pros / cons / experience / lessons.

NVIDIA:

  • Linux support (just use binary blob and deal with it)
  • Compiler support, GCC 4.1 and 4.2. 4.3 there are still problems.
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Such a direct comparison will require someone to create a set of computational tests that is independent of the API and works on both CUDA and ATi Stream. People have tried, but there is no platform independent solution yet. Maybe this is one of the basic GPU testing capabilities. There are other projects, such as MAGMA or GPUlib, that flourish under the control of Nvidia. The world of GPGPU is very warlike.

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From a software point of view, this is not a comparison of apples, since the programming models of the two are very different,

An application can efficiently display Brook + rather than CUDA or vice versa. Making the best use of hardware by writing good code makes a big difference.

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LAMMPS is one of the most successful molecular dynamics simulators based on the GPU. Axel Kohmeyer, chief developer, reported the experimental results on this page in a message attachment . These results are fair and useful.

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