Games Benchmarks - DirectX
Max Payne
For the first games benchmark we'll use the DirectX title Max Payne.

640x480 | 800x600 | 1024x768 | 1280x1024 | 1600x1200 |
Normal | 130.1 | 106.6 | 72.9 | 46.4 | 31.4 |
3X FSAA | 31.5 | 26.9 | 18.1 | 11.8 | 10.3 |
% Diff | -76% | -75% | -75% | -75% | -67% |
The Xabre 400 appears to post a reasonably respectable performance under Max Payne with normal rendering. At 1024x768 the average performance is well above 60 FPS and at 1600x1200 it's still above 30 FPS.
The performance drop for 3X FSAA is quite steep, at around the 75% mark. Looking at the fill-rate graph, there appears to be in increase in fill-rate performance at 1600x1200, which may indicate that something like the texture LOD is being lowered.

640x480 | 800x600 | 1024x768 | 1280x1024 | 1600x1200 |
P4 2.53GHz | 130.1 | 106.6 | 72.9 | 46.4 | 31.4 |
P4 1.8GHz | 71.0 | 60.6 | 47.7 | 34.5 | 25.3 |
% Diff | -45% | -43% | -35% | -26% | -19% |
Here we can see that, despite the hardware geometry engine, the performance between the two different CPU's is quite high, with 45% lower performance at low resolution, scaling back to 19% at higher resolution where there is more of a fill-rate limitation.
640x480 | 800x600 | 1024x768 | 1280x1024 | 1600x1200 | |
AGP4X | 129.2 | 105.6 | 72.3 | 46.3 | 31.3 |
AGP8X | 130.1 | 106.6 | 72.9 | 46.4 | 31.4 |
% Diff | 0.7% | 0.9% | 0.8% | 0.2% | 0.3% |
Unlike the SPECviewperf tests, the difference between AGP8X and AGP4X is small, with the best case accounting for less than 1% performance increase.