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Review: NVIDIA GeForceFX 5700 Ultra and FX 5950 Ultra

by Ryszard Sommefeldt on 23 October 2003, 00:00

Tags: NVIDIA (NASDAQ:NVDA)

Quick Link: HEXUS.net/qauj

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Aquamark 3

  • Author: Massive
  • DirectX Class: 9.0
  • Pixel and Vertex Shaders: Yes (mixed mode, PS1.4 and PS2.0)


The Radeon's show the FX boards how to do Aquamark 3 properly, both in the mid-range and high end. 9800XT has a field day, with big distance between it and overclocked FX 5900 Ultra, again the fastest NVIDIA card on test.

NVIDIA tell me they will fix the issues causing low Aquamark 3 performance on FX 5700 Ultra, with it possibly being related to not quite being optimised for pixel shader performance on the new 4 pipe version of NV35. Sounds like instruction count penalty in their backend shader parser, although I'm just guessing.

Notes

Only the shader precision bug I spotted in the NV36 analysis I did for the 9600XT article is present here, on all NVIDIA cards. Banding is visible on an environment mapped shader effect in the high particle count test, suggesting some optimisation using low precision floating point data types. Hopefully we'll see that removed in future drivers.