500w PSU Enough for this build?

I'm wondering what wattage I should go for in a PSU for my new Build?
Intel Core i5-2500K Sandy Bridge 3.3GHz
ASUS P8P67 PRO LGA 1155 Intel P67 Motherboard
G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666)
XFX 6870
Western Digital Caviar Black 1TB
3x120mm Case Fans
3USB Devices
26" Vizio 1920X1080 LCD

I was looking at a 500w Zalman PSU thats 80+ Bronze, but the more I thought of it I started thinking that it wasn't enough. Would this 500w PSU be fine or should I get something like a 650W? :??:
4 answers Last reply Best Answer
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  1. I wouldn't see why not, your CPU/GPU are pretty efficient.

    This is with i7 970/SSD.

    You should have room for OC/Aging.

  2. Best answer
    Here are the amd 6870 requirements:

    The 500w psu meets minimum so you should be OK. The price is very attractive.

    Your mobo is crossfire capable, so If you plan on a second card, or a stronger card, you might go for a 600w unit instead.
  3. Best answer selected by oilibre.
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