4770 in CF or one 5770?

I can't say I've ever been a big fan of sli/crossfire unless you're wanting to get the fastest card to crossfire, I always prefer 1 more powerful card to 2 slower ones in SLI. (unless of course you find one for really cheap or better yet free). you'll get better perfomance out of 2 4770 CF, but at the expense of increased power consumption, no eyefinity, & no dx11 (no big deal on the latter 2 b/c the card probably isn't powerful enough to preform those when dx11 games begin to roll out anyways).

What is your power supply, processor, resolution you'll play at, etc.