ATI Catalyst 7.8 (8.40) Beta (XP/2K/Vista 32&64bit)

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So far, testing under RightMark3D 2.0 reveals significant boost in PS4.0 Mineral shader test - 335 fps, a full 20% over the 8800Ultra score.

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[Spajdr]

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To je sice hezké, ale ve fire testu to má 4fps stále

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A proč je třeba, aby R600 měla zrovna ve fire-testu víc? Zvlášť pokud jde o typ shaderu. který se v reálných hrách prakticky nevyužívá:

There's a weighting function (8 clocks on R600 I think) which does a bunch of dependent scalar MUL/ADD/MADD, and a gradient calculation (16 clocks on R600, MULs + transcendentals), run 32 times each to generate the shader's noise, which then feeds a small loop over scalar floats to accumulate.

Dependant Scalar Instructions — Basically this test issues a bunch of scalar MAD instructions that are sequentially executed. This way only one out of 5 slot of the super-scalar instruction could be utilized. This is absolutely the worst case that would rarely be seen in the real-world shaders.