(AMD) for desktop, mobile and embedded platforms based on the Zen microarchitecture and its successors. It consists of central processing units marketed for mainstream, enthusiast and workstation segments and accelerated processing units (APUs) marketed for mainstream and entry-level segments and embedded applications. Ryzen was especially significant for AMD, being a completely new design, and marking the corporation's first return to the high end desktop CPU market with a product capable of challenging competitor Intel for almost ten years.