https://www.pcgamesn.com/amd/integer-scaling-radeon-adrenalin-graphics-card-drivers
 
With NVIDIA and Intel already entrenched in the integer scaling field, which brings improved image quality to upscaled, pixel-art games, AMD was sure to follow. Vacuums in terms of feature set between different manufacturers of the same products aren't well looked at by consumers, and so AMD really has no choice but to advance into the integer scaling game as well. Recent Linux driver patches have been analyzed and found to contain multiple references to an integer scaling feature, which means that AMD is readying it for deployment and already on their way to work on its driver-level implementation.

Integer scaling works by looking at the base image and multiplying each pixel up to your monitor resolution, which brings in added sharpness without a single pixel's color being stretched over others. This way, a base 1080p presentation can easily be upscaled to a 4K resolution simply by syncing a given pixel's color information through 4 pixels - now you have a 4K screen that's rendering the same number of pixels as a 1080p one, with a block of four pixels acting as a single one. With integer scaling being the most requested feature on AMD's Adrenalin feedback page, so it seems pretty guaranteed we'll see the feature adopted eventually - perhaps even in AMD's own yearly big Adrenalin driver release, which could be dropping by this December, should history repeat itself.
 
I am curious to see just how good integer scaling can be. 

They all sound good , but it comes down to implementation done right or not...