RDNA 2. The graphics architecture at the heart of AMD’s kick-ass new Radeon RX 6000 graphics cards may sound like a simple iteration upon the original “RDNA” GPUs that came before it, but RDNA 2—which also powers the next-gen Xbox Series X and PlayStation 5 consoles—is much more than a mere refresh. Significant tweaking has resulted in a stunning 54-percent increase in power-per-watt over AMD’s last-gen Radeon RX 5000 GPUs. Perhaps more notably, the Radeon RX introduces an innovative new “Infinity Cache” technology that reimagines how memory behaves in graphics cards. Oh, and ray tracing? AMD does that now, too.