2 GTX 460 vs 1 GTX 570 SLI cards

[sedaition]

I'm about to do a system rebuild (though alot of new components). It will be for gaming but will probably drift into the realm of unity/3DMax/Blender. My question would be between two differing sets of graphics cards single great card verse two cheaper SLI cards, both around $350.

(2x)EVGA 01G-P3-1372-TR GeForce GTX 460 (Fermi) Superclocked

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130571

or

(1) EVGA SuperClocked 012-P3-1572-AR GeForce GTX 570

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130595

I'm leaning towards the second of the two because I may buy a second one much later down the road when prices have come down(maybe 6 months to a year). But if I can get a substantial boost from the two 460's now I may go with that

Rest of specs

CPU: intel i7 2600K
MB: ASRock P67 EXTREME4 GEN3 LGA 1155 @ http://www.newegg.com/Product/Product.aspx?Item=N82E16813157265
CASE: Tower with 4 120mmfans, 1 140mm
PS: 700 watts
Ram: 4x2 DDR3 1600
(sorry bout not looking all specs up, but you get the idea)

Any opinions/facts/benchmarks would be greatly appreciated

 

[GreenDutchAlien]

460 sli is better, about 15-19% i believe, but is a dead end upgrade.
I would take the 570 and sli that later or maybe one 460 now, oc the hell out of it and buy begin next year a new series and sli that later.

 

[BlackHawk91]

Yeah, I'd go with the single 570. The 460 now and upgrade to a next gen card later is also a great idea.

 

[GreenDutchAlien]

Yep, and because it's only in use for 4 or 5 months or so, get the maximum oc on it plus a bit extra, let it smoke ! :lol: ( or be wiser and spare the card and try to sell it second hand later, but that's no fun really )