Why does phenom perform better than an intel quad at high resolution in Lost Planet?

[Jakko]

No anti-aliasing. All game settings set to minimum apart from the effect quality setting.
This is making this test CPU limited at any resolution up to 1920x1440.

As you can see in the snow benchmark, the benchmark is not cpu limited looking at the intel performance, and only partly cpu limited (1024 * 768 and lower) for the AMD cpu.
Where did you get the idea the test was cpu limited?

And even if it was cpu limited, that still wouldn't explain why the phenom beats the intel consistantly at resolutions higher than 1024 * 768.