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Old 10-26-04, 03:52 PM   #38
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Join Date: Mar 2003
Location: Tulsa
Posts: 5,101
Default Re: why do fx cards perform so badly in 3dmark05

Originally Posted by zakelwe
From your table

2 vertex shaders offer a loss of 300 to 500 points
8 pixel shaders offer a loss of 900 to 1400 points

So your conclusion of "The fact that 2 vertex units can offer a similar loss to 8 pixel shader units" does not match your own table. Your table shows 2x -3x greater loss when losing 8 pixel pipelines than 2 vertex units.

Like I said at the very beginiing, better to gain 4 pixel pipelines when modding a 6800 than the 1 vertex unit for 3dmark05.


You realise there are 8 pixel shader units in 1 quad? 2 quads is 16 shader units. You arguing a point you simply dont seem to understand.

1 quad should have a higher effect than 1 vertex unit, because of the pixel shader architecture of a quad. The graph here shows how 2 vertex units can offer a similar performance deficit to 1 quad, (IE 4 shader units and 4 non dedicated shader units, 8 Shader units per Quad, Including a 25% reduction in Fillrate)

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