8800gtx wasn't out when Oblivion launched, the top nVidia card back then was the 7800gtx. I was running a 6600gt prior to Oblivion launch, then upgraded to the second best single gpu on the market, 7800gt. The game still ran like a pile of steaming sh1t. I wouldn't draw conclusions based on Oblivion. In fact, my x1800xt and x1900xtx were a massive upgrade for Oblivion, those cards were beasts. EDIT: Actually, thinking back, the 7900gtx was the top nVidia single gpu card back then. My bad.