X-bit labs

ATI RADEON X1000: Brand-New Graphics Architecture from ATI Explored (page 26)

Category: Video

by Alexey Stepin , Yaroslav Lyssenko, Anton Shilov

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

Performance in Theoretical Benchmarks: RADEON X1600 XT

We will compare the RADEON X1600 XT against the following rivals:

• RADEON X700 PRO (RV410, 425/864MHz, 8pp, 6vp, 128-bit, 256MB)
  for details see article called PowerColor X700 PRO Graphics Card Review
• RADEON X800 PRO (R420, 475/900MHz, 12pp, 6vp, 256-bit, 256MB, AGP)
  for details see article called PowerColor RADEON X800 PRO Graphics Card: Modification, Extreme Overclocking and a Duel against Leadtek GeForce 6800 GT
• GeForce 6800 (NV42, 325/600MHz, 12pp, 5vp, 256-bit, 128MB)
  for details see article called MSI NX6800-TD128E (GeForce 6800) in SLI-Configurations: High Speed at a Reasonable Price?

Fillrate

Unlike RADEON X1800, RADEON X1600 XT behaves completely differently in the fillrate test. The most remarkable result is the Z pixel fillrate: RADEON X1600 XT can process double number of Z values per clock, just like GeForce 6800, because RV530 features four texturing units and 8 Z-Compare units.

Throughout the entire test our hero yields only to the 12-pipeline NVIDIA solution but proves faster than RADEON X700 PRO. In the last case the advantage is not dramatic: it must the only 4 texturing units that prevent it from doing better this time.