560 sli or 570 single?

[captbirdseye06]

Hi Guys,
Recently purchased below:
Intel Core i5-2500K 3.30GHz
MSI Z68A-GD65-G3
Cooler Master CM-690 II Lite Dominator Case
Kingston HyperX Genesis Grey 8GB


And now need to get gfx card but i'm a bit confused about whether or not it's worth getting a single 570 or sli two 560's as quite a few reviews have mentioned that two 560's can match a single 580?

Any advice on which models?

 

[Randomface74]

Single card avoids micro-stuttering among other problems with multi-card.

570 will be plenty good enough.

 

[captbirdseye06]

Single card avoids micro-stuttering among other problems with multi-card.

570 will be plenty good enough.

Do you mean issues with Vram errors?

 

[fowler002]

what psu do you have? for sli you'll want 800w ideally, single card 600-700w.
also what res monitor do you have?

 

[captbirdseye06]

My PSU is a Tagan superjet 900w and my mointor res is 1920x1080.