2 GPU's in one system

[SavageCupcake]

Hi guys

I've currently got a 7870 hawk in my system running off an antec 650w psu (which has been solid since I got it). A friend of mine is upgrading his pc and is giving me his 6850 in return for me putting it together/ fixing a few things. Is there any point in putting it in my current system? I know I can't run it in crossfire or anything. Can I run my other displays off it or anything? or use it for folding?

Will 650w be enough to power it? especially if it is left folding.

Rest of my specs are 2500k @ 4.4ghz (1.32v), 8gb ram, asus dgx, 2 hdd's, an ssd and 7 fans.

 

[Edge]

You can use different cards for mining cryptocurrency.. not sure about folding.

Why not sell it for another 7870?

 

[SavageCupcake]

From what I've seen on ebay they only go for about 30 quid which isn't really worth it to me. If I can't find a use for it then It'll just go on the shelf till I build a htpc.