I'm looking for a suitable PC game to play either online for free or to download for free to test the performance of my new Nvidia 8600GT graphics card. I know it's asking a lot, but is there anything out there to do the job?
You can get free versions of synthetic benchmarks, such as 3DMark, that run graphics tests on your PC and then give you a "score" which you can use to compare against an old setup, or other people's PCs. However, if you didn't do this before and aren't bothered about other people's computers there's not much point!
Other option is getting a demo for a game. Crysis is a good bet - guaranteed to kill any computer that didn't cost about �1200!
Bioshock is an amazing game. Crysis is not bad. I have an 8600GTS. As the guy said, it depends on your RAM, CPU and Motherboard. Give it a try and post back.
You can find your desire game by following every game's system requirements from PC Game Pure https://www.pcgamepure.com
They shared pc game download links with the minimum system requirements information.
Most of the time, I use this site for downloading Computer video games.