Anticipating M1X

The M1 chip is so fast that I have zero doubt — zero — that Apple can make a higher-end chip to easily supersede its entire lineup of Intel laptops and desktops in performance. As an owner of an ageing 2016 MacBook Pro with a mostly-broken keyboard, I’m so looking forward to it.

The M1 runs inside a 10-15 watt power budget. The fanless M1 MacBook Air already bests the high-end Core i9 16-inch MacBook Pro on most single-core CPU tasks. There’s no need to imagine about if Apple can deliver a high-performance chip; you literally can go into an Apple Store and already buy it. The definition of an existence proof.

What is still up for speculation is how much higher can an “M1X”, or whatever it’s called, push the performance inside the larger thermal envelope enclosures of iMacs and 16-inch MacBook Pros. For reference, the current 16-inch uses Intel CPUs that are designed to run at around 45 watts, or about triple what the M1 requires.

This is where the guessing comes in. I think Apple can eek out more from the current chip architecture. By letting the cores run slightly hotter at moderately faster clock speeds, those 1700 Geekbench scores can be bumped up to the 2000-2200 range. At least for this first generation, that’ll more than suffice. Then, they can invest the rest of the power budget into boosting multi-core performance. A Bloomberg report published today suggests Apple is working on of 12-core, 16-core and even 20-core CPU designs for the ARM MacBook Pro. That’ll certainly do the job. Remember, the highest-spec MacBook Pro you can buy today features an 8-core CPU.

Frankly, Apple could use the exact same CPU cores in the M1X as they have shipped in the M1, and just have way more of them. They are plenty fast enough for single-core tasks after all. The only areas the M1 falls short in comparison to the current Intel 16-inch MacBook Pro’s is on the multi-core benchmarks. An M1 with a souped-up core count would be perfectly appropriate for the 2021 MacBook Pro. If they can go further, by increasing clock speeds as well, that’s just gravy.