This is a decent build for 500. The rx 470 gives alot more options for 20 over budget. Take a look at its benchmarks online.
PCPartPicker part list:
http://pcpartpicker.com/list/n3zjHN
Price breakdown by merchant: http://pcpartpicker.com/list/n3zjHN/by_merchant/
CPU: Intel Core i3-6100 3.7GHz Dual-Core Processor ($110.99 @ SuperBiiz)
Motherboard: Gigabyte GA-H110M-A Micro ATX LGA1151 Motherboard ($53.88 @ OutletPC)
Memory: G.Skill NT Series 8GB (1 x 8GB) DDR4-2133 Memory ($32.98 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.49 @ OutletPC)
Video Card: PowerColor Radeon RX 470 4GB Red Dragon Video Card ($194.98 @ Newegg)
Case: Thermaltake Versa H21 ATX Mid Tower Case ($35.99 @ SuperBiiz)
Power Supply: EVGA 500W 80+ Bronze Certified ATX Power Supply ($43.33 @ OutletPC)
Total: $519.64
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-09-13 19:37 EDT-0400