Which PSU for my pc?

I need help choosing a psu for my new build. There are 3 psus to choose from so can anyone suggest me which one to get?

1) Cooler Master GX-series 650W PSU (80PLUS BRONZE) (its the new version)
3) FSP Aurum Gold 500W (90 plus gold)

My rig:

i5-3570k oc to 4.5
hd 7850 or 7870 dont know yet
8 gb ram 1600 mhz
1 tb caviar black
msi z77a-g45

i need fast response plz ty! :)
3 answers Last reply
More about which
  1. Probably the FSP Aurum 500 as it is the most efficient and matches or beats the competitors you've listed in electrical performance. And it actually has a decent idle fan speed, unlike the 600W+ versions.

    My second choice would be the OCZ ModXStream Pro 600W.
  2. I'd go for the OCZ model personally
  3. +1 to Silvune. If they are all about the sam price, then FSP Aurum and then the OCZ...I personally wouldn't buy a Coolermaster PSU.

    Edit: corrected format
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