HEXUS posted a comparison review between XFX GeForce 8800 GTS XXX Editions 320MB vs 640MB

XFX's XXX Edition GTS cards are high on performance but distinctly average when price is factored in. Right now, given a choice, we'd go for the 320MiB version.

XFX GeForce 8800 GTS XXX Editions compared - 320MB vs 640MB