Unreal Engine 5 Temporal Super Resolution Tested

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Image: Epic Games

The latest version of Epic Games’ renowned game engine, Unreal Engine 5, features a new upsampling algorithm called Temporal Super Resolution that some believe could strongly compete with NVIDIA DLSS and AMD’s upcoming Gaming Super Resolution technology. While that’s still up in the air, AnandTech forum member Gideonic has shared some comparison images and videos that suggest Temporal Super Resolution will at the very least serve as an excellent alternative to classic Temporal Anti-Aliasing, providing superior image quality and stability at the expense of slightly lower performance versus its predecessor. Epic Games says that Temporal Super Resolution is capable of output approaching the quality of native 4k renders at input resolutions as low as 1080p.

Resolution: From -> toComparison linkPerformance
720p ->1440pTAA vs TSR81 FPS vs 79 FPS
720p ->1440pNative 1440p vs TSR44 FPS vs 79 FPS
1080p ->1440pTAA vs TSR61 FPS vs 58 FPS
1080p ->1440pNative 1440p vs TSR44 FPS vs 58 FPS
2880p -> 1440p (downscale)Native 1440p vs 2880p44 FPS vs 14 FPS

Very small performance hit
No exotic hardware requirements (works even with Vega)
Excellent temporal stability and no flickering on faraway objects with complex geometry
Looks considerably better than TAA, particularly on the edges of faraway objects. 720p TSR sometimes even beats 1080p TAA (definitely so in motion)


Still bugs and artifacts on moving objects/characters
Nanite can reduce geometry detail (up to 4x when doing 50% upscaling), since it strives to show about 1 polygon per pixel and doesn’t account for upscaling. It’s similar to the bugs DigitalFoundry has mentioned with LODs.

Source: Gideonic (1, 2)

Tsing Mui
News poster at The FPS Review.

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