Crysis Warhead Enthusiast HD 5770 OC @ 1090T

Playing Crysis Warhead on Enthusiast 1280x1024 with 2xAA it's freaking playble !!! With Fraps i getting 27-30fps without i getting 30-34fps...all is enthusiast My PC: ~Mbo: Gigabyte GA-890FXA-UD5 rev. 2.1 ~Cpu: AMD Phenom II X6 [email protected] ~Ram: Kingston HyperX 4GB DDR3 1600MHz ~Gpu: XFX HD 5770 1GB 921/1359MHz ~Hdd: Maxtor 250GB 3gb/s ~Psu: Coolermaster Extreme Power+ 500w ~Twr: Eurocase MDL5460 Midi tower ~Sys: Windows 7 Ultimate x64