If you watched the presentation on the Radeon RX 6800 and 6900 XT series yesterday, you will have noticed that AMD did mention these cards would support DirectX Raytracing, however not much was said about it otherwise in relation to performance.
AMD however later in the evening revealed its first results in the official DirectX Ray-Tracing benchmark on its website. It's a bit of a nonsensical test, but one from Microsoft giving us an idea of what to expect when initiating DXR on the new 6800/6900 graphics cards.
“As measured by AMD Engineering Lab on 8/17/2020 on RDNA2-based AMD graphics card using Microsoft's DXR SDK Procedural Geometry demo application, RDNA2-based AMD graphics card gets 13.8x more speed (471FPS) using hardware ray-tracing versus software simulation layer (34FPS) at the same speed ” .
AMD mentions that one of its graphics achieves 471 FPS in Microsoft's Ray-Tracing benchmark, although it does not mention which of its graphics card that is. Now if you run this benchmark on an RTX 3070 you'll get roughly 475 FPS. According to Reddit users an RTX 3080 gets 635FPS and an RTX 3090 gets 749 FPS, so this graph that AMD mentioned reaches the RTX 3070 (499 USD) perf at best. This is a theory, but we think the test was conducted with an RX 6800 XT (579 USD), so that card would level with RTX 3070. If it was the 6900 XT then AMD has substantially lower DXR performance at hand.
Obviously, these results do not directly reflect the performance of AMD graphics in games, so we will have to wait a few weeks to find out. For now, please consider these results indicative at best.
Radeon Series RX 6000 Raytracing numbers posted by AMD, match RTX 3070
