Performance on the two chips was identical for integer, floating-point, NEON (vector processor) and Accelerate (Apple’s performance library, presumed here to use NEON too).
The P cores were assessed with a workload of eight threads run at maximum Quality of Service (QoS), which fully loads all the P cores without any contribution from the E cores. These were tested separately using tight loops of assembly code in AsmAttic.
Now that I have a Studio (Max) sat behind my M1 Pro MacBook Pro, this article compares their benchmark results. A month ago, I explained what performance to expect in Apple’s new Mac Studio models.
