Hd 6570 on 220 watts?

Hi, just today i purchased a dell inspiron 660s that has a 220watt power supply. I would like to upgrade a video card but don't know which will run in my system. Its either the nvidia gt 630 or the amd radeon hd 6570. Which would run in the machine and which one the better one???

Link to the gt 630:
http://www.amazon.co.uk/Palit-Graphics-PCI-Express-PureVideo-Technology/dp/B0084EHXHW/ref=sr_1_1?ie=UTF8&qid=1344704398&sr=8-1

Link to the hd 6570:
http://www.amazon.co.uk/Sapphire-11191-02-20G-6570-DDR3-Graphics/dp/B004WYV8SI/ref=sr_1_1?s=computers&ie=UTF8&qid=1344704455&sr=1-1
3 answers Last reply
More about 6570 watts
  1. yes the hd6570 should work on that psu..but just about..
  2. what about the performance which one s faster gt 630 or hd6570?
  3. gt630 is a rebranded gt440 which is on par with hd6570..
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