[wintercharm]

You're correct.

Anandtech is using SpecInt/FP numbers to compare Single core IPC between one A12 BIG core, and one Skylake server CPU core. Per-core power consumption on that Intel chip is 165/28 = 5.89W.

Apple is pushing similar IPC at 3W instead of 5.89W In that context, it's not so unbelievable, but it's still really fucking impressive.