How much wattage do I need?

I've used several different wattage calculators and they all come up different. Here's what I've got

1x GIGABYTE VGA Series Radeon HD 6850
1x CORSAIR Vengeance 8GB (2x4GB)
Cooler Master Storm Enforcer (maybe with an additional 200mm led fan, so consider that)
FX 4100 processor
M5A97 motherboard

At the moment I've selected a Corsair enthusiast 750W. Is this enough?
5 answers Last reply
More about wattage need
  1. its more than enough.
  2. 750watt would be more than enough to run 2x HD6850 in crossfire! This is about the most correct calculator
  3. you can get away with a 450 watt one for that setup, (400 if its good quility) so thats more than enough.
  4. Okay, thanks for the fast replies!
  5. For a system using a single Radeon HD 6850 graphics card AMD specifies a minimum of a 500 Watt or greater power supply. The power supply should also have a combined +12 Volt continuous current rating of 24 Amps or greater and have at least one 6-pin PCI Express supplementary power connector.

    The Corsair Enthusiast Series TX750 V2 (CMPSU-750TXV2), that you've selected, with its combined +12 Volt continuous current rating of 62 Amps and with four (6+2)-pin PCI Express supplementary power connectors, is way more than enough.
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