Tested all of my systems. The Atom CPU took a hell of a long time to run the benchmark. Thing is slow as hell.
2700X was custom water cooled and running at stock with PBO enabled. All of the other CPUs were also at stock and under air cooling.
What is your memory running at? If you have XMP (DOCP) enabled try lowering the frequency a tad (for example: 3200 → 2933). The variation in core frequencies is normal as that is part of XFR2 and the power profile you have enabled in Windows.