![]() The AMD Navi 10 (RX 5600 XT and RX 5700 XT) GPUs also lost performance with XeSS, and if the Navi 12 information is correct, only the Radeon Pro 5600M (used in some MacBooks and laptops) fully supports DP4a from the RDNA generation. Emulation generally reduces performance quite a bit, and so it would make sense that cards like the RX Vega 64 ran slower. What's going on? It looks like DP4a (8-bit integers) is being emulated via 24-bit integers on architectures that don't natively support it. But the results of the benchmarks are telling, as XeSS didn't benefit quite a few of the GPUs and in some cases reduced performance. Guess which GPUs allowed us to enable XeSS: All of them. Here's where things really get odd, because we did some quick benchmarking of Shadow of the Tomb Raider at 1440p and the Highest preset (without ray traced shadows, so that we could run the same test on all GPUs). What about AMD? In theory, Vega 20, Navi 12 (?), and later GPUs have support for it. Intel says its Gen11 Graphics (Ice Lake) and later support DP4a, and of course Arc GPUs support Xe Matrix Extensions (XMX) - the faster alternative to DP4a. Officially, we know all Nvidia GPUs since the Pascal architecture (GTX 10-series) have supported DP4a. What the hell does that mean, and what graphics cards support the feature? That's a bit more difficult to say. However, XeSS is supposed to have a fallback mode where it runs using DP4a instructions - four element 8-bit integer vector dot product instructions. It was created by Intel for the Arc GPUs, more or less as a direct competitor to DLSS. This is where things can get a bit confusing with XeSS. If you own the game, you can try XeSS right now for yourself, and it works on many GPUs, including Nvidia's and AMD's best graphics cards. 1080p shadow of the tomb raider image update#Shadow of the Tomb Raider just received a new update featuring support for Intel's new XeSS technology, making it one of the first games on the planet to publicly offer XeSS. ![]()
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