yes it does via nvidia surround. You will be able to run most games on the highest settings and achieve really good fps, except for graphics intensive games like BF3, Metro 2033, etc.
I have a gtx 670 ftw and it is great. Just got it a couple days ago, and it is awesome. I run the original crysis on the highest settings with full anti aliasing, and achieve 60 frames almost all of the time @1080p. The thing absolutely destroys the 560 i had before.
Can't wait to get my extra monitors for surround...