TechPowerUp posted a review on the AMD FidelityFX FSR 3.1
AMD FidelityFX FSR 3.1 Review
AMD's new FidelityFX Super Resolution 3.1 update (FSR 3.1) features improvements to upscaling quality and Frame Generation. It is now possible to run FSR Frame Generation without any upscaling, or combine it with DLSS, which finally gives GeForce 30 gamers a framegen option.
