256MB vs 512MB Performance

Dark Messiah – Direct3D

Dark Messiah Performance 1280x1024
Card	Min FPS	Max FPS
GeForce 7900 GT 512MB	37	63
GeForce 7900 GT 256MB	35	62
Radeon X1900 XT 512MB	56	81
Radeon X1900 XT 256MB	50	82

Notes

To test the impact 512MB of memory has on GeForce cards, we’re underclocking a 512MB 7900 GTX to 7900 GT speeds and comparing the difference in performance. Looking over the results, the 7900 GT benefits little from the extra memory until we hit 1600x1200, where performance jumps by an astounding 31%. In contrast, the Radeon X1900 XT benefits from the extra memory at all resolutions, with the improvement ranging from 4-6% depending on the screen resolution.