500w power supply?

[Danoroth]

Hey I have a desktop pc, i7 3.4 GHz, 1TB hard drive, 4Gb DDR3 ram and a 500w power supply, will it run a Sapphire HD6790 1G graphics card?
Thanks

 

[StrangleHold]

http://www.computerforum.com/204008-will-run-my-power-supply.html#post1704798

 

[Okedokey]

Which 500W PSU exactly? Model number and brand.