Basics GPUs

Ultimate visual comparison between AMD RIS, NVIDIA DLSS and FreeStyle

During our test of the Radeon RX 5700 and 5700 XT, we had already made an initial comparison to present the capabilities of AMD RIS (Radeon Image Sharpening) technology, which allows image playback to be scaled up as well as in the native definition. Improved. We have also promised to examine the result more closely with an HDMI grabber, the only method that is able to capture all the necessary images of all graphics cards, and especially the scaling supported by RIS, in a truly clean way. We have kept this promise, with even more comparisons.


RIS compared to the rest of the world

Of course, we compared RIS to DLSS, but also to unsupported upscaling, and especially with the NVIDIA FreeStyle "Details" touch-up (still announced as experimental), which is also intended to sharpen. We set it to 50% (standard), but without the other retouchings (HDR effect, etc.) that are not possible (and necessary) here.

As for Radeon Image Sharpening, it's hard enough to explain exactly what it's made of. Unfortunately, AMD says very little about this and simply explains that it is a special algorithm for image sharpening, which adds consideration of contrast differences to improve refinement. However, in the course of this test, we will at least be able to see exactly what RIS is capable of here.

It should also be noted that RIS is integrated into the AMD FidelityFX toolbox, which is offered to developers to integrate the "trick" into a scaling option integrated into their game or simply into an option to sharpen the image into native definition. Especially since there are also first mods, which should make this library also run on GeForce cards.


The HDMI Grabber GC553 from AverMedia

We used the AverMedia GC553 for good reason because it allows us to capture 4K natively by switching the device between the output of the graphics card and the 4K monitor. This allows it to capture scales that cannot be captured by the graphics card or a screenshot other than the native definition.

The housing also includes a small fan, as the built-in chip heats up a bit. The part is then clearly heard in an otherwise quiet room and as a result of this you have the siren with a bit of bad luck also when streaming on the sound channel. It is best to go under the table with it and as far away as possible.

For this review, we tested RIS with a new Radeon RX 5700 and as a competitor of NVIDIA with a PNY XLR8 GeForce RTX 2080 Ti. The latest drivers have been used and if anyone is wondering about the nominal performance differences of the cards: this is definitely not about performance, but only about visual rendering. This in advance for a better understanding.


MSI Radeon RX 5700 XT 8G, 8GB GDDR6, HDMI, 3x DP (V803-890R)


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About the author

Bruno Cormier