the intel i3 cpu is a better gaming cpu it faster then the amd 4 core unit.
PCPartPicker part list:
http://pcpartpicker.com/p/35y6G
Price breakdown by merchant: http://pcpartpicker.com/p/35y6G/by_merchant/
Benchmarks: http://pcpartpicker.com/p/35y6G/benchmarks/
CPU: Intel Core i3-4130 3.4GHz Dual-Core Processor ($99.99 @ Microcenter)
Motherboard: Asus H81M-A Micro ATX LGA1150 Motherboard ($54.99 @ NCIX US)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1600 Memory ($76.44 @ Amazon)
Storage: Western Digital Caviar Blue 500GB 3.5" 7200RPM Internal Hard Drive ($48.94 @ Amazon)
Video Card: Asus Radeon R9 270X 2GB Video Card ($223.99 @ Staples)
Case: Cooler Master N200 MicroATX Mid Tower Case ($44.99 @ Microcenter)
Power Supply: Corsair Builder 600W 80+ Bronze Certified ATX Power Supply ($37.99 @ Newegg)
Total: $587.33
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-03-07 00:40 EST-0500)