Tim did some great work here. This is starting to compete with DF-level analysis and it's just a major step all around up from some of his previous upscaling reporting.HUB analyzed DLSS4 in great details, they say it's simply amazing! DLSS4 Performance looks like DLSS3 Quality/native.
Image clarity (without sharpening!) and stability in motion are what we need from an upscaler, and the way this is presented is way more useful than just freezing and zooming frames and pointing out artifacts.