For fun I decided to put together a budget gaming rig with this CPU and a 2GB R9 270 GPU.
$500 including the monitor, operating system, and a keyboard and mouse.
PCPartPicker part list:
http://pcpartpicker.com/p/3L9nP6
Price breakdown by merchant:
http://pcpartpicker.com/p/3L9nP6/by_merchant/
CPU: AMD FX-6300 3.5GHz 6-Core Processor ($81.99 @ Amazon)
Motherboard: Biostar TA970 ATX AM3+ Motherboard ($46.98 @ Newegg)
Memory: G.Skill Ripjaws X Series 8GB (1 x 8GB) DDR3-1866 Memory ($36.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($45.88 @ OutletPC)
Video Card: PowerColor Radeon R9 270 2GB TurboDuo Video Card ($89.99 @ Newegg)
Case: Thermaltake Versa H21 Window ATX Mid Tower Case ($18.99 @ Newegg)
Power Supply: EVGA 430W 80+ Certified ATX Power Supply ($14.99 @ Newegg)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($89.88 @ OutletPC)
Monitor: Asus VS228NL-P 60Hz 21.5" Monitor ($89.99 @ Newegg)
Keyboard: Logitech MK120 Wired Slim Keyboard w/Optical Mouse ($8.99 @ NCIX US)
Total: $506.67
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-12-13 00:48 EST-0500