AMD has finally given a performance preview of its elusive FidelityFX Super Resolution technology.

FidelityFX Super Resolution, or FSR for short, is AMD's answer to the magic of Deep Learning Super Sampling, or DLSS for short; Nvidia's version uses AI to upscale games to higher resolutions without losing performance, but AMD's version "doesn't require machine learning." Firing.

DLSS offers performance gains of up to 118% in some cases, so FidelityFX is looking at a much higher bar.

From what we have seen so far, FidelityFX offers four different upscaling modes, with Ultra Quality mode offering one more option than you tend to get with DLSS. With this mode enabled, AMD's "GodFall" demo exceeded its native 49 fps to 78 fps. That's about a 59% performance increase on a demo rig Radeon RX 6800 XT at 4K with graphics set to Epic and ray tracing turned on. Not bad, but this just scratches the surface.

Once you get up to the performance mode, the gains are spectacular. From 49 fps natively, it triples to 150 fps. Also, there is no discernible difference in side-by-side image fidelity.

AMD tested the same game on an Nvidia GeForce GTX 1060 at 1440p with the Epic graphics preset and found that the FSR quality mode successfully boosted the game's frame rate by 41%, from 27fps to 38fps.

DLSS, of course, only works with RTX cards, so AMD has extracted extra performance from competing GPUs in a way that Nvidia cannot. Impressive work.

Being an open source technology, FidelityFX runs on a wider range of GPUs and CPUs, including competitors'. AMD has promised to offer over 100 compatible graphics chips for FidelFX, but there is a problem with that: not all games will be supported. Not all games will be supported.

Developers will have to work with AMD to adopt the technology, which should become easier over time, not least because of its open-source nature: according to AMD, there are currently "more than 10 game studios and engines" participating in 2021, but it is not clear which games will be supported by June 22 is unknown which games will receive the critical patch.

For a full list of games that support AMD's existing FidelityFX features, check out the FidelityFX Supported Games list. Hopefully, games offering specific FSR support will be updated; AMD's site also offers gamers the opportunity to suggest which games they would like to see FSR support in.

Of course, all of the demo benchmarks are carefully selected numbers, so we will have to wait until FSR is fully available on June 22 to see just how powerful the technology really is. However, one cannot help but cautiously anticipate the power of FSR.