None of this should be surprising since these are still Zen 2 cores, not Zen 3 like later Ryzen 4000 series desktop parts will be. And we already know that current Gen Intel parts beat the Zen 2 parts in single core performance so whatever comes after the 10th Gen Intel parts should sure as heck beat it as well, otherwise, they've gone backwards.
Actually, you're incorrect.
Zen 2's IPC is higher than Intel's current CPU's on the market (but maybe not Tiger Lake's).
Intel only has a small advantage in games (roughly 10%) and that's mainly because they managed to get it to run at 5GHZ and just over that out of the box and because of a mesh design where there are no latencies between cores (Zen 2 greatly reduced those latencies... and Zen 3 will effectively eliminate them).
AMD's Zen 2 (thanks to its IPC) gets within 10% of Intel in games and SMASHES it in multicore performance while drawing LESS power (oh and Zen 2 also has far less security flaws).
Oh and, in productivity software, Intel's lead in single core is much lower than 10%... that alone shows you just how much better AMD's Zen 2 is.
As for the above article... looking at the frequencies, you are missing a few things:
Intel's Tiger Lake is clocked about 55% higher on single core... and only beats AMD by roughly 24% in that metric (which is quite frankly pathetic) while operating at unknown TDP levels.
The only reason Intel can clock their Tiger Lake part higher than AMD is because they have 50% less cores.
Oh and... AMD's 4800u is an 8c/16th part usually running at 15W TDP.
The Tiger Lake was configured to an unknown TDP - but previous leaks indicated 28W... (4800U can also go up to that cTDP, and the Lenovo Yoga Slim 7 will be using 4800u configured to 27w cTFP, which when tested showed to be 30% faster than the 15W variant).
So, yeah... Intel still cannot put 8c/16th CPU into a low power envelope it seems (AMD can).
Oh and Intel's graphics are still pathetic compared to enhanced Vega in Renoir (Zen 2).
Oh and Tiger Lake's IPC is an unknown as of yet. Intel boasted some rather high claims on that front, but the propensity of leaks thus far suggests they didn't get anywhere near what they were saying.