Hardware - Intel Core 2 Extreme E6850 (3.00GHz) LGA775 - x2 Corsair DOMINATOR Twin3X2048-1800C7DF G Module(s) - Seagate 320GB 7200-RPM (Serial ATA300) - Nvidia GeForce 8800 GTX (768MB) - ASUS P5E3 Deluxe (Intel X38) Software - Microsoft Windows Vista (64bit) - Nvidia Forceware (169.01) - Intel System Drivers (8.4.0)

After much messing about in the very early hours of the morning, I finally worked out why the 64-bit version of Crysis would not run. For some reason in the Nvidia control panel when the V-Sync option is set to "Use the 3D application setting" and the Multi-display/mixed-GPU acceleration setting on "Multiple display performance mode" the 64-bit version would instantly lock up. Changing these settings to “Force On” and “Single display performance” allowed us to finally run the 64-bit version. The results were quite good...

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 1440x900 we saw an 18% rise in performance favouring the 64-bit version while the 1680x1050 resolution also enjoyed an 18% increase in performance. There was even a 16% gain in performance at 1920x1200 which was most impressive. It would appear after all, that running Crysis in 64-bit mode when possible is very worthwhile indeed.