AMD’s Ryzen X3D series of CPUs, which packs extra V-cache for running high-powered games or other media applications, has been a hot ticket for PC gaming ever since it was introduced. Today, Newegg is offering two of the most popular entries in the series, the Ryzen 7 5800X3D for the AM4 socket with a free motherboard or its next-gen Ryzen 7 7800X3D upgrade for the AM5 at a significant discount. You can get the older processor + mobo for just $319 or the newer one for $364. That’s a discount of $120 and $86 off the retail price, respectively, though street prices for both chips have been runni…