I could've sworn I already replied to this. I may have responded to the wrong thread, but I can't find it if I did (stupid "show member's posts" feature still doesn't work). Anyway, here's my thoughts on the matter.
The 700 series looks like a reasonable bump, but not enough to warrant upgrading from 600-series cards, IMO. The architecture doesn't appear to have changed at all, which IMO makes the 780 more of a 685 than anything else (right between 680 and Titan).
At any rate, I won't be upgrading. My 660 Ti is more than enough to drive all my games at 60fps (a few of them with slightly reduced settings, but nothing noticeable). I think the series might make great cards for people who need new ones anyway (computer builders, people whose cards died), but for folks who already have 600 series cards it's probably a generation worth skipping. It's a safe bet that the 800-series will have a newer architecture that I'm sure will mean better-than-700-series oomph with lower prices, lower power consumption, and probably new features.
