Will a corsair gs 800 psu run 2 radeon 6950 graphics cards

Forgottenpain

Distinguished
Jan 8, 2012
2
0
18,510
I've been thinking about setting up a cross fire with another Radeon 6950. I currently have a Corsair GS800 PSU. I don't think it will run 2 cards but I wanted to ask before I invested in another card and or a new PSU. So here's the million dollar question. Will I need to get a new PSU and if so what brand/wattage should I go for?