AMD is known to push for 4K gaming with its previous “high-end” graphics card releases with some units packing in liquid cooling solutions out of the box. Today, it seems like AMD has finally achieved glorious 4k gaming via the RDNA 2 Architecture without the caveats as even the cheapest RX 6000 GPU is marketed for 4K Gaming.
AMD’s main goal with the RDNA 2 architecture is to make it very power efficient which led to the debut of AMD’s Infinity Cache solution. Infinity Cache is a new method on how data is delivered in GPUs. Every card in the Radeon RX 6000 family is equipped with a 128MB of AMD Infinity Cache enabling high-performance bandwidth vs GDDR6 all while consuming far less power.
Nvidia was first to market with full DirectX 12 support, now known as DX 12 ultimate. AMD’s RDNA 2 architectural improvements allow the brand to catch up and finally support the full level API as well as Ray Tracing, variable-rate shading, mesh shaders, and sampler feedback.
AMD’s Ray Accelerators is AMD’s answer to Nvidia’s RTX Ray Tracing via RT cores. Each RDNA 2 Compute Unit(CU) includes a dedicated Ray Accelerator that can calculate up to 4 ray/box intersections or one ray/triangle intersection every clock. We’ll see how AMD’s first take on Ray Tracing via Ray Accelerators compares against Nvidia’s RT cores.
Processors only access a fraction of GPU memory, typically around 256MB resulting in a less efficient data transfer and restricted performance AMD Smart Acess Memory or SAM enables more memory space to be mapped to the base address register(BAR) resulting in performance gains in select games, particularly those who are memory heavy. With SAM enabled, the whole PCIe bandwidth is utilized allowing AMD processors to fully access the entire GPU memory. As of writing, Smart Acess Memory can only be enabled if you meet the necessary hardware requirements as well as the latest BIOS and drivers.
Smart Access Platform Requirements
- AMD Ryzen 5000 Series Processors
- AMD Radeon RX 6000 GPUs
- AMD B550/X570 Series Motherboards
Above 4G decoding and Re-size BAR support must be enabled to enable Smart Access Memory. These settings can be enabled on the BIOS and are usually found under PCI-Subsystems.