We ran our ZD 3D WinBench 99 test suite. We also present the 3D Transform and Lighting subtest results, to help show floating-point performance. We present results of testing with guardband off and with guardband on. The guardband is an overflow area beyond the actual screen area to be rendered. 3D WinBench99 Red type denotes first place.
High scores are best.
Intel argues that the amount of clip checking and triangle clipping in ZD 3D WinBench 99 with guardband off is excessive, and more than in normal applications, so the company claims it was not necessary to optimize the clipping code in DirectX 6. Still, Intel is optimizing this path in DX7 with SSE, and provided us a DLL, not presently available to the public, that uses SSE clipping operations for DX6, so we could see how much better the Intel chips might perform. Our Transform and Lighting subtest showed the Athlon to have the most efficient code overall, and especially for handling the added clipping with guardband off. Photoshop Tests Red type denotes first place. Bus speed ZD FPU WinMark 99 High scores are best.