Which computer is better for gaming?

I want to but a computer for gaming and liked both of these. Can you tell me which one is better if not recommend me one for $500-$700. I want to play games like gmod minecraft skyrim bf4 cod dayz and others

ASUS M51BC-US008O Desktop PC AMD FX-Series FX-6300 (3.50GHz) DDR3 1600MHz 8G x 2 Windows 7 Home Premium 64bit

http://www.newegg.com/...gnorebbr=1

or

BUYPOWER Source Series NE651FX Desktop PC AMD FX-Series FX-4300 (3.80GHz) 8GB DDR3 Windows 7 Home Premium 64Bit

http://www.newegg.com/...6883227543

How about' you look at that graphics card?
I recommend you get the BUYPOWER Source Series NE651FX Desktop PC AMD FX-Series FX-4300 (3.80GHz) 8GB DDR3 Windows 7 Home Premium 64Bit
Cause it uses Radeon R7 260X better than the 240

Which supports for games is better computer.

The IBUYPOWER computer is better but this will only last you 3 ish years I would say, before you should upgrade to something a lot better.

This brand called "Orgin" it's really good. All the pros use it and its not that expensive. Happy gaming!