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How many watts do I need?

Hello all, I am in the process of putting these parts together but I'm not sure how large a psu would need to be to run things nicely.
I7 4790k
Asus Gtx 780
Z97-k mobo
1 dvd drive
1 Hdd

I wonder if it's better to buy a premium psu with just enough power to run things or a less quality psu with lots of headroom. For example a 500w seasonic vs a 750w corsair cx.

Thanks for your help

Daniel
19 answers Last reply Best Answer
More about watts
  1. 500w isn't gonna be enough, but I wouldn't recommend getting a 750w corsair cx. What would your budget be? With a 650w PSU you're gonna have quite some headroom, a 600w should be fine too.
  2. budget
  3. What do you recommend then icebox?
  4. i need budget and country of origin sir
  5. Not a problem squire. £80 United Kingdom.
  6. i prefer the one i chose fully modular and goldrated yesh
  7. The G2 is of higher quality, but the G1 isn't bad either, he'd be saving money on the XFX while getting an excellent quality PSU.
  8. That gold one is a very poor PSU. ^
  9. PCPartPicker part list / Price breakdown by merchant

    Power Supply: EVGA SuperNOVA NEX 650W 80+ Gold Certified Fully-Modular ATX Power Supply (£68.54 @ Aria PC)
    Total: £68.54
    Prices include shipping, taxes, and discounts when available
    Generated by PCPartPicker 2014-07-21 21:56 BST+0100
  10. So you're saying it's a bad psu, but at the same time offering a link at a better price? How do you feel about this onehttp://www.amazon.co.uk/gp/aw/d/B0045L4BJ6?cache=6a499d9a50fe1ff97c650d4d1c57928f&pi=SX200_QL40&qid=1405977793&sr=8-3#ref=mp_s_a_1_3
  11. The one I linked isn't the same one .
    EVGA
    120-G1-0650-XR
  12. Yes this is a great PSU.

    XFX PRO750W Core Edition 80+ Bronze
  13. Xfx 750 it is then. Thank you for helping me out sir.
  14. Best answer
    Anytime that is a great choice.
  15. cool beans
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