Benchmarks show M1 with Rosetta2 beats previous Mac iterations in Cinebench benchmark. See page 2 here https://www.anandtech.com/show/16252/mac-mini-apple-m1-teste...

>> What’s notable is the performance of the Rosetta2 run of the benchmark when in x86 mode, which is not only able to keep up with past Mac iterations but still also beat them.