Will these graphics cards work together well in SLI?

[Acapon]

My question is this..

Will this (which i currently have) > [url]http://www.amazon.com/MSI-N570GTX-M2D12D5-GeForce-Graphic-Card/dp/B0068449AY/ref=sr_1_4?s=electronics&ie=UTF8&qid=1328016386&sr=1-4[/url]

be compatible if i buy this > [url]http://www.ebuyer.com/249399-pny-gtx570-1280mb-gddr5-dual-dvi-mini-hdmi-pci-e-graphics-card-gmgtx57n2h12zpb[/url]

in SLI?

And is an 850 watt power supply going to be sufficient for them?

Edit: Also.. the reason i cant just buy the same one is because i cant seem to find any anywhere in the UK! :/

[tratzzz]

Yes. Should work fine..

Only problem is that the one you currently have will lose its factory OC afaik but you can still raise it to the correct clocks.

[Acapon]

[QUOTE=tratzzz;34476887]Yes. Should work fine..

Only problem is that the one you currently have will lose its factory OC afaik but you can still raise it to the correct clocks.[/QUOTE]

Do you think i should use that other one i chose with my one i have now? or is there something different you would recommended?

[Shadaez]

The exact same one would be best, of course, but it doesn't really matter. I'd recommend not getting one with a reference cooler.