ShaderMark 2.0
Shader Precision
ShaderMark 2.0 highlights GeForce 6's changed default data precision in shaders. iXBT's PixelShader 2.0 precision test shows us the default precision for PS2.0 in DirectX 9.0.NV40 | R360 | |
Default PS2.0 precision | s23e8 | s16e7 |
As you can see, R360's important pixel shader precision format is FP24 (s16e7). NV40 is 32-bit throughout.
On to the ShaderMark 2.0 results.
ShaderMark 2.0 Results
ShaderMark 2.0 is run in Anti-Detect mode using PS2.0 and no partial precision hinting.
When NV40 can complete the test (more on that shortly) it's anywhere from 2x to 4x quicker. The impressive looking result is for the Per Pixel Environment Mapping test. Raw shader throughput looks quite impressive, according to ShaderMark 2.0 at least.