The fact that the MBA does DeepPRIME in the same time as my Mac Pro does PRIME is very encouraging, as DeepPRIME results are markedly better than PRIME. Note that PhotoLab 4's DeepPRIME processing leans on the GPU, whereas PRIME leans on the CPU. But, remember, this is with the M1 running emulation. The same iMac's RX 580X GPU runs this benchmark in about half the time (23 seconds vs.
On the same benchmark, the M1's CPU performance is just 10% behind a 2019 6-core 3.7GHz 27" iMac. Processing a 51MP GFX50S RAW with DeepPRIME in PL4 running under emulation (obviously), it is almost exactly as fast as my 8-core 3.3GHz 2013 Mac Pro with FirePro D500 GPUs when using CPU-only and TWICE as fast as the Mac Pro when using the GPU. I have a first benchmark from my just-arrived entry-level M1 MacBook Air.