Hey guys. As the topic says i am gonna buy a sapphire r9 280x toxic edition. I got a few questions first because i have to see if my pc can run this gpu. I got a 650w PSU with Intel i7 3770, Asrock Extreme 4 motherboard. 1 Seagate Barracuda DM003 1TB HDD, one ocz vertex 4 128gb SSD, i got 3 x 120m fans, and an artic cooling freezer rev 2 cpu cooler. On the sapphire r9 280x toxic edition it says it requires 750w PSU. Well my question is will i be able to run this GPU on my pc? If someone could help me it would be great. Thanks