DLSS vs FSR vs XeSS upscaling comparison in Tellusim Engine shows FSR being most stable


NVIDIA DLSS has been updated to version 3.0. It includes the unique Frame generation component. AMD FSR was also updated to version 2.1 last week. The new Intel XeSS has also been launched.

A new direct comparison between all three technologies for upscaling has been released by Tellusim TechnologiesMaker of the Tellusim Engine (and other related products). GravityMark GPU benchmark). Although Tellusim may not be familiar to most readers, its creator is Alexander Zapryagaev. He co-founded Unigine Corp., which powered the new MMO Dual Universe, which is available on Steam.

Zapryagaev tried extreme scaling ratios and found that DLSS had the best quality, but FSR was the most stable. XeSS is definitely in front of the other in both these areas.

An extreme upscaling ratio of 1:36 can make Full HD (1920×1200) resolution from 13h DOS mode (320×200). Let’s see how low we can go without high image degradation. We will start at 200 % (1 to4) and reach extreme 600% (1 to36).

The checkerboard test uses simple animated objects. Nvidia DLSS is the best, but it shakes after 400%. AMD FSR2 remains stable in all modes. We will omit any conclusions of Intel XeSS quality because it’s running on Nvidia GPU.

The second test uses a lower camera angle with the checkerboard facing the horizon. Similar results.

 

Let’s take a look at a game-like scenario with dynamic lighting and animation, relatively low color contrast, and a lot of blue noise. All upscaling libraries use the same input data, including blue noise and volumetric light. The target rendering resolution is 2K. The source image size for 600% mode is only 428×241, but the upscaler turns it to the target resolution.

Overall, AMD FSR2 is the most stable resolution at all, with better denoising than DLSS 2.4. We will soon add the results of DLSS 3.0 running on Intel GPU.

This is more an experiment than a practical use-case scenario. FSR standard implementation allows only 2x upscaling when using the Performance Mode. DLSS is limited to 3x if used with Ultra Performance (though it’s only recommended when playing at 8.K resolution). XeSS offers an upscaling factor 2.3x when using the Ultra Performance mode.

Therefore, it is only academically interesting to find out which technology for scaling up is the most stable at 400% and beyond.



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