All, except oblivion. Well, you can play oblivion, but its gunna be between 15-20 fps on high detail, which is choppy. Im sure you can mess around with tweaks and get oblivion to run smoothly however.
For me, im getting 25 fps on my 6800GT on my desktop and Oblivion was iffy... I didnt enjoy playing it because everytime i'd get attacked by 2-3 guys, my FPS would go waay down because of all the detail on the guys, so i decided to quit the game ;(. I'll give it another try when i get my S96J, i heard ATi video cards render it much better.