3-D Gaming vs Better GPU

Short story: I have an Alienware m17x R3, and I plan on upgrading the graphics card (think mine is dying). I'll either be getting a GTX580m, or a GTX680m. The main point for me seems to be that with the 680m, specifically when in an R3, the 3D capabilities won't work from what I understand. So I need some feedback on what would be a better option, getting the 680m with no 3D, or the 580m and the possibility of 3D. I've never had the opportunity to try any 3D computer gaming, so anyone with input on how good/worthwhile it is would be appreciated.

 

3D on GTX 580M might require lowering some settings to keep it running at 30+ fps though.

 

680M hands down if you have the budget. Using 3D when gaming will cut the fps in half.

 

All else being the same, I would go with the 680 simply because it's significantly faster, and 3D gaming is largely a gimmick if you ask me.

You'd probably get better results asking in the Alienware subforum where they could advise you on whether or not the 680m would really break 3D capability (which doesn't seem to make sense to me) - there are bound to be a few users there who have made that same upgrade and could report on their hands-on experience.

 

Problem with the 3D gimmick is... you need twice the fps... and that require a lot of juice...