X-bit labs

ATI RADEON X1000: Brand-New Graphics Architecture from ATI Explored (page 24)

Category: Video

by Alexey Stepin , Yaroslav Lyssenko, Anton Shilov

[ 10/05/2005 | 12:05 PM ]

Fixed T&L Emulation

With only one light source involved, RADEON X1800 XT is at the head of the race, while RADEON X1800 XL is at the very end of it, most likely because its clock frequency is quite low for architecture of this kind.

As the number of light sources increases up to 8, the overall picture changes, but still remains quite strange: RADEON X1800 XT suddenly starts yielding to GeForce 7800 GTX, which contradicts the results of the geometric Xbitmark test. RADEON X1800 XL, on the contrary, turns out capable of defeating GeForce 6600 and RADEON X850 XT Platinum Edition.

I believe the CATALYST drivers are not ready yet for efficient work with T&L emulation.

The point sprites performance test is just another vertex processor test. And it seems to be working just fine: the results demonstrated by RADEON X1800 prove its leadership in geometry processing.