Hello, I've googled the turbo steps of Intel Xeon W processors used by iMac Pro but to no avail. AFAIK the so-called turbo frequency only apply to single core. That means when the rest often scale down to lower CPU frequency. With skylake AVX512, it is even lower. See below Xeon Silver 4114, the AVX512 frequency is down from 2.2GHz to 1.1GHz Normal 2,200 MHz 3,000 MHz 3,000 MHz 2,800 MHz 2,800 MHz 2,700 MHz 2,700 MHz 2,700 MHz 2,700 MHz 2,500 MHz 2,500 MHz AVX2 1,800 MHz 2,900 MHz 2,900 MHz 2,700 MHz 2,700 MHz 2,300 MHz 2,300 MHz 2,300 MHz 2,300 MHz 2,200 MHz 2,200 MHz AVX512 1,100 MHz 1,800 MHz 1,800 MHz 1,600 MHz 1,600 MHz 1,500 MHz 1,500 MHz 1,500 MHz 1,500 MHz 1,400 MHz 1,400 MHz It seems Intel never release the turbo steps frequency for Xeon W processors. Isn't it a bit risky to pay for iMac Pro? EDIT: I am planning to run some AVX2 AVX512 on iMac Pro so worry the performance hit due to downscaled frequency!!!