Fill in your specs in the User CP so that we can help you more by seeing your full system configuration. From the looks of it the 3gb of ram looks to be populating all 4 slots, which is a bad thing for an AMD CPU, puts tons of stress on the on die memory controller. Plus do you have a OC on your CPU? If not, that is also a huge reason why your 8800GT is not performing as well as it should be. Trust me, its a great card! I typically get about 13.7K with my setup in 3dMark06, which is higher than a GTX could get.