Catzilla sometimes behaves erratic too, sometimes the Physics score is insanely low, you reboot and it's up again, then the other subtests score lower... feels like pcmark, you need that lucky run to get it coming together...
For me the benchmark hardly scaled after 1350 on the 5800K, when we benched the 6800K the board halted our tries at 1200 so we got close to Jacks score on air lol