Is 650w Enough for my build?

Hey there people,

I was wondering if 650w would be enough for my build because in Australia there is a Corsair Hx-650 for 130$ and then there is a Corsair Hx-750 for 190$.... WHAT!!! ONE-HUNDRED-AND-NINETY-DOLLARS!!!! So im wondering If the Hx-650 would be enough?

CPU: Intel i7 3770K
GPU: Gigabyte Radeon HD 7970 Overclocked 3GB
HDD: 1TB Western Digital Caviar Black
OPTICAL DRIVE: Pioneer DVR-220LBKS
MOTHERBOARD: Gigabyte GA-Z77X-UD3H
POWER SUPPLY: ?????????
RAM/MEMORY: G.skill Ripjaws-X 1600Mhz (2x4GB)
OS: Windows 7 Home Premium 64-bit OEM
Cooler: Cooler Master Hyper 212 EVO

Also would you reccomend the 650w or the hx-850 for 215$?
Or do you know a better PSU that is 750w?
4 answers Last reply
More about 650w build
  1. Or Should I just get a Tx-750?
  2. the hx 650 has 52 a on the 12v rail which is enough for your hd 7970
    cheers!
  3. An overclocked 7970 may at times pull a maximum of 340W
    Ref http://forums.atomicmpc.com.au/index.php?showtopic=264

    The rest of the system will not pull 200W.

    So really a good 550W will do.

    Capstone modular 650W
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817182263

    Seasonic X650
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817151088

    Corsair AX650
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139035

    Take your pick, all are excellent.
  4. So I understand that the Hx-650 is good for my needs but I think the corsair Tx-750 is my kind of deal
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