But what exactly is FSR, and how does it work?

What Is FSR?

It is anupscalingtechnology, designed to improve the performance of games without loss of image quality and graphical detail.

Powerful personal computer gaming rig in a room with RGB lighting.

Gorodenkoff/Shutterstock.com

This is especially true if the game uses demanding effects likeRay Tracing.

You get the performance of the lower resolution but with the visual detail of a much higher resolution.

A sharpening process is also performed to smooth out details further.

AMD FSR performance chart at 4K

AMD

FSR is similar to NVIDIA’sDLSSor Deep Learning Super-Sampling.

One important difference is that FSR is open source, and potentially available on any graphics card.

Whereas DLSS is dependent on using an NVIDIA GPU.

AMD FSR quality comparison in Terminator Resistance game

AMD

Which FSR Scaling Mode Should I Use?

FSR has four different quality modes to choose from.

FSR then scales up the image by 1.5x.

FSR settings in the SCUM game

Upscaling, even the intelligent spatial upscaling that FSR uses, isn’t a perfect process.

The more scaling applied to a frame, the more likely graphical errors will occur on screen.

This is an issue that AMD has at least partially addressed with the release of FSR 2.0.

What Is FSR 2.0 and How Is It Different?

The main difference between version 1.0 and 2.0 is the switch from spatial upscaling to temporal upscaling.

Spatial upscaling uses data from the current frame to upscale the frame itself.

FSR 2.0 also allows game developers to tweak the different scaling modes.

How Do I Use FSR?

FidelityFX Super Resolution was made available to developers of PlayStation 5 and Xbox Series X/S games in mid-2021.

Related:AMD FreeSync, FreeSync Premium, and FreeSync Premium Pro: What’s the Difference?