AMD Ryzen 7 1800X 8-Core 3.6GHz Desktop Processor for $299.99 + FS @ Newegg.com

Newegg has the AMD Ryzen 7 1800X for $299.99 + Free Shipping with Promo code EMCBBBK24.
Link to CPU
It also comes with a free "Champions Pack" for Quake Champions.