Yep.. doesn't make sense to me. I have two machines with the same exact processor. Same motherboard, same video card. Only difference is one machine has 4GB of ram, the other has 1GB of ram. The machine with 4GB of ram is averaging 1,600-1,700PPD, the one with 1GB is averaging 700-800PPD. Both are running Ubuntu 64bit, both have the same exact installation of F@H SMP. Any ideas?