As you can see the claims made by Crytek that the 64-bit version would allow for 10-15% more performance were very accurate. At 1440×900 we saw an 18% rise in performance favouring the 64-bit version while the 1680×1050 resolution also enjoyed an 18% increase in performance. There was even a 16% gain in performance at 1920×1200 which was most impressive. It would appear after all, that running Crysis in 64-bit mode when possible is very worthwhile indeed!