XeSS: Initial tests and comparison results with DLSS.

What happens when you compare three rendering technologies - native, DLSS and XeSS? How do they work with different GPUs? What are the advantages and disadvantages of XeSS?

These questions were asked by PCGamer and Tom's Hardware editors who tested XeSS on a variety of graphics cards, including the GeForce RTX 2080 Ti, AMD RX Vega, and Navi 10. The results were pretty interesting.

As it turned out, XeSS works with all tested GPUs, but does not always give a significant performance boost. In some cases, it even runs slower, which is explained by the fact that DP4a instructions are not natively supported by all GPUs and are emulated using 24-bit integers.

It's also possible that the 6 GB VRAM bottleneck could also affect performance. But despite these problems, XeSS still promises to be a good alternative to DLSS.

Of course, these are only the early days of XeSS and there is still a lot to be improved and optimized. Intel, which has launched its Arc GPUs, can prioritize its Arc XMX algorithm to improve performance and image quality.

It's important to note that there is one API and SDK, so development should continue for both NVIDIA and Intel GPUs. We expect more tests and reviews soon to get a better idea of ​​XeSS and its capabilities.