I was wondering how a Beelink Mini PC T4 pro (Apollo Lake N3350, 2 cores) would compare against a Pi 4. According to benchmarks it's a bit faster for single core but slower when all cores are used. Size and power consumption would be comparable. It needs a 12V power supply.
It was not my intention to advertise this particular system. It was just one of the first that showed up in my search. I am happy to hear about further alternatives.
I also saw that there is a NUC11 (Celeron N5105, 4 cores) available now, but it comes with a 19V power supply. The box is also physically larger.