Help, will this PSU support crossfire

WINTERLORD

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Sep 20, 2008
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wonder if with a quality goild efficiency and a 4790k overclocked so say a 100watt CPU coupled with 3x radeon 280x stock if i could squeze by with a high quality 850watt psu?

my problem is i want to get a small computer case in the future id use 2x high powered graphics cards for now maybe 3 radeon 280xc since i have 2 already. 1000watt psu seem to bew a bit large at 7.83 inches and 9lbs.