AMD RDNA 2 Architecture

AMD RDNA 2 (GFX10.3, TSMC N7, 2020–2022) is the architecture underpinning the Radeon RX 6000 series and also powering the PlayStation 5 and Xbox Series X/S GPUs. Key additions over RDNA 1: hardware-accelerated ray tracing (Ray Accelerators, 1 per CU), Infinity Cache (128 MB on Navi 21, effective 2× bandwidth multiplier at 1440p/4K), PCI Express 4.0 ×16, DirectX 12 Ultimate full support, and Smart Access Memory compatibility. The RX 6900 XT, 6800 XT, 6700 XT, and 6600 XT were the flagship consumer SKUs, with mobile variants (RX 6700M, 6600M) appearing in gaming laptops.