my performance isn't working like its supposed to.

one of my computers has 2 Radeon x300 128mb hypermemory video cards (that im sure arent bridged for many reasons), 2 intel(R) D CPU 2.80 Ghz processors, and 1 GB of RAM, and im not sure what kind of memory it is. My other computer has 2 SLI bridged Nvidia 7800GT 256MB PCI-E video cards, 2 GB of Crucial DDR 400 memory, and a AMD Athlon 64 FX-55. i would like to think that the other computer with the bridged video cards are better, but when i set both to medium, the first computer works unbelivable, but the second is crap. I'm sorry that this is so long, but can some1 help me? Specifically, i need help with Lord of the Rings, BFME 2, but all games dont work right.

that first comp shouldn't run any new games tbh. x300 with shared memory you gotta be kidding. the second one should trounce them. have you got SLI enabled. also have you got all the latest drivers, as without a specific profile for the game SLi will not benefit them.