Crytek has announced their minimum system requirements for the upcoming Crysis 2:

Crysis 2 System Requirements

• Intel Core 2 Duo or AMD Athlon 64 X2 2GHz or better
• Nvidia 8800GT or higher
• 2 gigs of ram
• Windows XP / Vista / Windows 7
• 9 gigs of free HD space
• Internet Connection required to install

Crysis 2 is still set to be released on March 22nd in North America, and March 25th in Europe.