The AM4 socket refuses to go quietly into the night. First offered on motherboards in 2017, AMD recently shocked the hardware world at CES by announcing new chips, even as it pushes the newer AM5 as its cutting-edge consumer platform. The easy standout was the Ryzen 7 5700X3D, a new, budget-friendly entry in the company’s popular line with extra v-cache specifically for gamers. The new chip is on sale today for $249.99. It’s available at the usual suspects like Newegg, Amazon, and Best Buy. The 5700X3D sits just below the 5800X3D, our pick for the best mid-tier gaming CPU from last year, and t…