Originally Posted by KonigGeist
I went through the same decision a few weeks ago with a friend. I ended up getting a 580, and he got two 560s.
The 560s are definitely more powerful, but they are a bit limited in some applications due to the smaller amount of VRAM (if you don't get the 2GB). While the 560s are also cheaper by a good margin, you have the (sometimes) worries of SLi with them.
I would think that the 580 would have a better resale value and it would have a better upgrade path.
It really just depends upon how much you want to spend and how soon you want to upgrade.
Yep. If you want the most performance you can get now, go for the SLI 560 Tis. If you want more open ended expansion options in the future, go for the 580.
In your shoes, I'd just grab a couple of 560 Ti Hawks and call it a day. TF3s are some of the best air coolers on the market, and with the healthy 950 core factory clocks they sport (along with 8+1 power phases) you'll have a beastly 1080p setup.
For the record, I haven't had any issues with micro stuttering or SLI compatibility. It's not nearly as prevalent as some would have you believe.