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ATI stakes claims on physics, GPGPU ground ATI stakes claims on physics, GPGPU ground
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ATI stakes claims on physics, GPGPU ground
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Old 11th October 2005, 19:25   #1
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Default ATI stakes claims on physics, GPGPU ground

One of the more surprising aspects of ATI's Radeon X1000 series launch is something we didn't get a chance to talk about in our initial review of the graphics cards: ATI's eagerness to talk about using its GPUs for non-graphics applications.

ATI practically kicked off its press event for the Radeon X1000 series with a physics demo running on a Radeon graphics card. Rich Heye, VP and GM of ATI's Desktop Business Unit, showed off a simulation of rolling ocean waves comparing physics performance on a CPU versus a GPU. The CPU-based version of the demo was slow and choppy, while the Radeon churned through the simulation well enough to make the waves flow, er, fluidly. The GPU, he proclaimed, is very good for physics work, and he threw out some impressive FLOPS numbers to accentuate the point. A Pentium 4 at 3GHz, he said, peaks out at 12 GFLOPS and has 5.96GB/s of memory bandwidth. By contrast, a Radeon X1800 XT can reach 83 GFLOPS and has 42GB/s of memory bandwidth.

http://techreport.com/onearticle.x/8887
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Old 11th October 2005, 19:27   #2
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Start Folding on your videocard

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Houston gave several examples of applications where GPUs can outshine CPUs for certain types of data-parallel processing. One of the most exciting was an implementation of the GROMACS library that's used for protein folding, as in Folding@Home. Although the GROMACS implementation wasn't yet optimized for the Radeon X1000 series and still used Pixel Shader 2.0b, the Radeon X1800 XT was already performing between 2.5 and 3.5 times faster than a Pentium 4 3GHz processor. The GeForce 7800 GTX didn't fare so well, achieving only about half the speed of the P4 3GHz. Houston offered a laundry list of things that GPGPU developers need from graphics chip makers, including better information about how to program the GPU and more direct access to the hardware.
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Old 11th October 2005, 19:46   #3
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Look at how well the several years old PS2 performs
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