AMD is preparing to launch its first RDNA 4 graphics cards in the form of the Radeon RX 8800 XT. Based on the Navi 48 GPU, the RX 8800 XT will be the RDNA 4 flagshipSuccessor to the RX 7800 XT and RX 7900 series. According to Tom from MLID, Navi 48 will have 64 Compute Units (CUs) or 4096 shaders Cores with a clock speed of 2.9 GHz to 3.2 GHz (in game).

The Radeon RX 8800 XT is paired with 16 GB of 20 Gbps GDDR6 graphics memory over 256-bit. It will have a TBP of 210-280W (RX 7800 XT: 263 W), with ray tracing performance being the focus of the upgrade. The RDNA 4 GPU will feature more Ray Accelerators (RA) per CU, with FP8 (mixed precision) and Matrix (tensor) hardware acceleration.

The RX 8800 XT is expected to be released between $499 – $599which delivers the same performance as the $1,000 GeForce RTX 4080, at least in rasterization. Ray tracing performance will be comparable to the RTX 4070 Ti/4070 Ti Super, with AMD partner titles delivering similar performance to the RTX 4080The Navi 48 GPU will be available in large quantities in the last quarter of 2024with a reference and AIB variants.

It will be interesting to see how the Ray Accelerator has evolved on RDNA 4. The PS5 Pro leak means a doubling of the BVH crossing Bandwidth (4->8), but it is unclear if the traversal will be offloaded to the shaders or the dedicated RT hardware. There is also talk of a neural network-based upscaler, but we have not seen any concrete information on that yet.