Ryzen 1200 keeps up with 8100 when overclocked and cost a lot less.
PCPartPicker part list:
https://pcpartpicker.com/list/ZMzLvV
Price breakdown by merchant:
https://pcpartpicker.com/list/ZMzLvV/by_merchant/
CPU: AMD - Ryzen 3 1200 3.1GHz Quad-Core Processor ($109.49 @ OutletPC)
Motherboard: Asus - PRIME B350-PLUS ATX AM4 Motherboard ($69.99 @ Newegg)
Memory: Team - Vulcan 8GB (2 x 4GB) DDR4-3000 Memory ($99.99 @ Newegg)
Storage: Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($46.89 @ OutletPC)
Video Card: MSI - GeForce GTX 1050 Ti 4GB GAMING X 4G Video Card ($139.99 @ Newegg)
Case: Corsair - SPEC-03 White ATX Mid Tower Case ($29.99 @ Newegg)
Power Supply: SeaSonic - EVO Edition 620W 80+ Bronze Certified Fully-Modular ATX Power Supply ($39.99 @ Newegg)
Operating System: Microsoft - Windows 10 Home OEM 64-bit ($89.89 @ OutletPC)
Total: $626.22
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-12-21 04:44 EST-0500