X-bit labs

NVIDIA GeForce 7800 GTX: New Architecture Exposed (page 15)

Category: Video

by Alexey Stepin

[ 06/22/2005 | 12:52 PM ]

Fixed T&L Emulation

These tests seem to be obsolete, but we thought it necessary to include them into the review because modern graphics cards emulate the fixed-function transform & lighting unit with the help of vertex shaders.

When there’s a single light source, all modern top-end graphics cards have similar results, with a minor advantage on the side of the RADEON X850 XT Platinum Edition.

The GeForce 7800 GTX takes the lead as soon as we increase the number of light sources to eight. It’s like in the Vertex Shader test from 3DMark03. Both these tests use several light sources and the G70 architecture shows its best in such conditions.

The GeForce 7800 GTX is slower than the RADEON X850 XT Platinum Edition due to the low core frequency in this point sprites modeling test.