Will my power supply be enough?

I want to know if my power supply will be enough to power a HD 7850. I will upgrade my power supply later along with other components, but I want to know If I'm ok putting it in my current build.

CPU: AMD Phenom II X4 965 Black Edition Deneb 3.4GHz
Cooler: Hyper 212 Plus
Motherboard: GIGABYTE GA-MA785GM-US2H
Memory: G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800
Storage: Seagate Barracuda 7200.12 ST3250318AS 250GB
Video Card: SAPPHIRE HD 5770 1G (current card)
Case: NZXT M59 - 001BK Black Steel ATX Mid Tower
Power Supply: CORSAIR CMPSU-400CX 400W ATX12V V2.2 80 PLUS Certified
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More about will power supply enough
  1. yes, your power supply carries 30A on it's 12V line and a 7850 only needs 21A.
  2. yep it will be just fine, despite what many would tell you. wouldn't want to go much more though lol.
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