GTX 670 And GTX 660Ti PSU Question

Hey, i'm wondering if i can either run a 660ti pr a 670 on my current psu. I only have the cash to buy a graphics card, and not a psu.

Here's my specs, can anyone help me out? :)


CPU
Intel Core i7 950 @ 3.07GHz

RAM
6.00 GB Triple-Channel DDR3

Motherboard

Gigabyte Technology Co., Ltd. X58-USB3

Graphics

ATI Radeon HD 5770


Thanks!
4 answers Last reply
More about 660ti question
  1. Forgot to put my current PSU, it's a 500w Corsair.
  2. You should be fine with either card.
    Corsair is a quality manufacturer and makes great PSUs. The 670 needs 30 amps total on the 12 v rail. The 660 Ti needs less.
    The least expensive 500 watt Corsair has 34 amps on the 12 v rail.
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139027
    if this is wha you have you are fine.
  3. Cheers for the quick replay man, it's been bugging me all day. I thought everything was down to the cards wattage draw, as my current card takes 108w max, and it says a 670 takes 170w.

    Thanks :)
  4. It depends on the total draw of the system in reality... The gpu manufacturers give PSU recommendations based on plenty of wiggle room. The newer cards are extremely efficient and the wiggle room is even greater.
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