This would probably be better answered in the "Hardware" forum...
Welcome to Simviation Conan!

Just out of curiosity, does your name come from the historical fugure or the "Late Late Nite Show" host?
I have an NVidia PNY Ti4200 64MB and it serves me well. Do bear in mind all games are different, and the simulator series (FS and CFS) are very graphics intensive. I get good, but not stellar frame rates with frequent stutters, but this is without tweaking. My sytem FPS only takes a hit from clouds.
During gameplay with a processor intensive game (Command and Conquer Generals: Zero Hour) I get
very f'n fast gameplay. In fact, I would go so far as to say too fast, and am looking into how to slow it down. This is with full settings and with all available AI opponents filled (7).
I am unawares of all that OpenGL and DX mumbo-jumbo.

Hope I was of some help.
