OK so, I am very competitive with my brother. His system specs are: AMD Athlon FX-60 S939 Dual Core MSI K8 Diamond Plus. 2GB OCZ High Performance DDR400 Ram XFX 8800GT 512mb My system specs are: AMD Phenom 9850 X4 Socket AM2+ ASUS M3A32MVP Deluxe Wifi 2GB OCZ High Performance DDR2800 Ram BFG 8800GTS 512Mb As far as I am concerned, I built this system specifically to be better than the hardware he has, yet it seems that there are some problems. My computer lags in games and jitters like crazy. I don't know if I built it wrong or something. But as it turns out, my computer only scores about half as my brothers in 3d mark 06, but I dont think it should be like that. Any suggestions?