Whats radeons version of 3d and wich is better

Also, just throwing it out there... buying a 3d capable monitor is an amazing move, because it's a 120Hz monitor, which means you can game at a hundred and twenty frames a second.

Gaming in 3d? Isn't. It's a pain to set up, doesn't look that amazing, gives you headaches, and has significant latency... when your graphic card(s) can even do it.

What card do you have right now? You'd need a 670 / 7950 in order to play in 3d with anywhere near decent settings and framerates; two would be preferable.