Tom's Hardware AMD's legacy Ryzen 7 5800X3D chips now sell for up to $800, more than a new 9800X3D — AM4 chip costs twice as much as MSRP, as enthusiasts flock to old DDR4 memory
As DDR5 memory prices skyrocket, demand for AMD's two-generation-old Ryzen 7 5800X3D has increased, causing second-hand prices to climb as high as $800 on eBay.