I work part time for a company that bought too many Lenovo mini-PCs and gave me one.
It uses the E2-9030 (2 Ghz Excavator family). I looked up some reviews/benchmarks and they suggest it was only as good as a Core 2 from 10 years ago. So I wasn't expecting much.
Well it manages to run Windoze 10 ... I would say it more like a first generation i3 or i5.
At least it is quiet, the CPU fan never seems to rev up.