You'd barely get super mario on the nes running on that(like 7-10fps) --- Post updated --- bro, that's a little insane. You sure?
RCT3 Command & Conquer Generals ... and other games of that era or earlier. Nothing newer than that. Basically, stick to games from before about 2005 or so. I had a machine with very similar specs (same GPU) and that was my experience with it.