They've released Nvidia GTX 650s on newegg
really longcat long link here
for a 120 bucks it looks like they pack quite a punch
no word on anandtech benches yet, I'm lazy so that's the only place I look but if you find any benches fell free to post
I would save up and get a 660, rather then a 650. Seriously.
(PS: Newegg TV has benchmarks for both cards, videos are already up)
made this before anyone knew about it and before logans' video, 650's are great for people with low budgets and have to stay under them
I'll find another GTX 470 or 2 for the time being