"Compared with the latest 10-core PC laptop chip, the CPU in M2 provides nearly twice the performance at the same power level" "compared to the latest 12-core

"Compared with the latest 10-core PC laptop chip, the CPU in M2 provides nearly twice the performance at the same power level" "compared to the latest 12-core PC laptop chip [...] M2 provides nearly 90 percent of the peak performance" That doesn't make sense. Twice the performance of a 10-core Intel CPU, but only 90% of the performance of a 12-core? This implies Intel more than doubles performance when going from 10 to 12 cores. Reading the footnotes, the 10- and 12-core Intel CPUs that Apple used for benchmarking are the i7-1255U and i7-1260P which have respectively 2P+8E and 4P+8E cores (performant and efficient cores). So the second Intel CPU actually has twice the number of performant cores than the first. This means the benchmark mostly depends on performant cores and nearly doesn't use or doesn't depend on efficient cores. If so, that's a rather useless benchmark for evaluating the CPU as a whole (P and E cores.) But what this also means is that Apple is being sneaky. The M2 has 4P + 4E cores (not revealed in the press release, but we can tell from the die shot). Thus comparing it to an Intel CPU with only 2P cores (i7-1255U) is guaranteed to make the M2 look better as the benchmark doesn't use E cores (see above.) What I'd love to see is the M2 put up against a Zen 3 or 3+ mobile CPU like the Ryzen 7 6800U (15–28 W) which straight up has 8 regular ("performant") cores.