You win the "delightfully consistent" award.
It means userbenchmark now only takes quads seriously. Would be interesting to see how 9900k scores fare against heavily-overclocked (4.8GHz+) i7-7700k scores, for example. 9900k might still win on cache alone.
@Zucker2k
Matisse is extremely powerful in ST performance in anything that fits nicely in its L3 cache, and it's still very competitive in scenarios where thread migration might be an issue (especially for users that tune their RAM to reduce thread migration performance penalties). Take a look at CBR20 ST scores. CBR20 was tuned for Intel processors vs. CBR15 (CBR20 uses Embree), and yet AMD still takes the cake in ST performance. A 5 GHz 9900k gets around, what, 510? A 3900x @ 4.5 GHz can beat that, no problem.
https://forums.anandtech.com/threads/【maxon】cinebench-r20-benchmark-thread.2562153/post-39874480
Userbenchmark shifting away from MT just makes Matisse less-dominant. Realistically-speaking, the 3900x (at least) should beat most/all Intel chips in userbenchmark assuming it can boost properly, which is a sticking point for some users right now. Might help Matisse users to set thread priority to make it fit on one CCX just in case the program is bouncing between CCXs though.