New price low! eBay with antonline has the AMD Ryzen 9 7950X 16-Core 32-Thread 4.5GHz Unlocked Desktop Processor for $650 - 20% off with coupon code PRESDAY20 [Exp 2/21] = $520 with free shipping. $589+ at other retailers. 

Can be overclocked to 5.7GHz, has 80MB cache, DDR5-5200 memory and AM5 CPU socket support.