Re: 1440p and higher -
There's simply no point in running these benchmarks in a CPU comparison as they're not CPU-bound, they're GPU-bound. Everyone reading these articles on Tom's should be aware of this fact, and it's a waste of time to run the comparisons. If all you do with your PC is game at 4k, you're going to be perfectly well off with a five year old four core Ivy Lake processor.
It's also worth noting that at 1080p, all of these games are running at 100fps+ - you're not going to perceive any difference between a Ryzen at 105fps and a Core at 115fps, so again, for gaming right now, you're not going to see a perceptible difference in actual gameplay between these processors. The test is still interesting and relevant, though, because it shows that the Core processors are more efficient / effective at doing what games are asking of them, which may make a difference down the road as new games come out that tax CPUs more than current games.