Call of Juarez
The overclocked 8800GTS-512X delivers a near-comfortable average frame rate, but the minimum speed is still too low for normal play. The game obviously needs over 512MB of graphics memory for 1280x1024 and higher resolutions.
Call of Duty 4: Modern Warfare
It is at 1280x1024 that we see the biggest effect from overclocking: over 25%. The minimum speed is higher by 20%, too. The average and minimum speed grow by 12% and 18%, respectively, at 1920x1200, which should give more confidence to people who have large-screen monitors.