R9380 with 600W or to go for 280X?

[gameboyzzzz]

Looking for a new GPU.........after some googling found out the Sapphire R9 380 4 GB Nitro edition ....Looks good for my 1080p . But again thinking of R9 280X which seems close to it. Now unable to decide which should I go for . Another problem is if I take the R9 380 nitro with i7 920 can i use it easily with the thermaltake 600w tr2 bronze psu?

http://www.thermaltake.com/Power_Supply/TR2_Series_/_/C_00002410/TR2_600W_Bronze/design.htm

http://www.sapphiretech.com/productdetial.asp?pid=421F760D-5247-4A25-BA5D-74A7A3139CD7&lang=eng

 

[Gmesh]

Either is fine, they are both pretty close. Most people would say that the 280x is slightly better. I would go for whatever you can get the best deal on. Whichever one you pick the 600w should be fine