As a video editor, this is where things get murky.
When most people (and probably you) talk about 'performance' you're probably talking about Geekbench scores (or something similar). But.... Geekbench scores are heavily influenced by tricks like hyper threading and turbo boosting.
Well, when you have any kind of long heavy duty process that could really benefit from that 'speed' ... guess what - the turbo boost benefit that shows up in Geekbench disappears because things like turbo boost are only meant to run for short periods of time (ESPECIALLY on the typically 'thin' apple products), and on processes that only require a core or two. But no processor can stably deliver long term performance at anywhere near peak turbo boost speeds.
So, all this bravado talk about how well Apple silicon will perform? That to me comes with that huge question mark: Apple silicon may beat Intel in a 2 minute benchmark, but how will it compare when I'm rendering a 1.5 hour video and the heat the pressure on the processors drop them back to their 'stable' performance levels?
To me, that is where the real proof in the pudding lies, and certainly nothing I've seen has given any sense of what the real answer will be.
So don't show me another stupid Geekbench score. Show me what sustained - long term - performance looks like when comparing the two processors. Until I see that, all you're talk about Apple silicon trouncing Intel chips just feels like vacuous slight of hand.
Not sure how long you've been using Macs or how familiar you are/were with the transition TO Intel processors that occurred between 2005 and 2006, but Apple is, so far, following the exact same playbook. The only really notable exception here is that, rather than producing a native version of the OS that was current at the time of the transition announcement for the new architecture, they're saying that it will start with the next release (i.e. Big Sur). That and they've announced that the first Mac will be announced so soon after the announcement (which can only signify that they're far along on this process). But otherwise, this is the same playbook from 2005-06.
Given that, it's important to note a few things:
- Apple will not EVER announce a new Mac that is slower than the Mac it replaces. It's simply not going to happen.
- Apple has SEVERAL skeptics (including you) who are unsure that this transition will actually result in FASTER performance, let alone "better products"; they are aware that they need to show proof or people will (a) not buy these new Macs and (b) cling to the Intel Macs that are out there which will screw them royally. This was true of the PowerPC to Intel transition and it is no less true of this Intel to Apple Silicon transition
- Apple only makes these kind of transitions when they hit a wall with the processor architecture they are currently on; with PowerPC, they couldn't get anything past a G4 on a notebook and they couldn't make a G5 that could go up to 3GHz and/or be even remotely power efficient and IBM (who made the PowerPC G5 series of processors) wasn't doing anything to help Apple on either front. With Intel right now, there has only been slight advancements since Skylake (6th Gen Intel CPUs that were on 2016 MacBook Pros and MacBooks, and 2015 Retina 5K 27" iMacs). The best we got was Intel increasing the core count with Coffee Lake (8th Gen). But past that, Intel has struggled to advance anything past how things were four years ago. When you talk about performance, as a video editor, it ought to worry you that Apple hasn't been able to offer anything drastically more powerful than the machine it was selling four years ago. Back in 2005, that would've been unheard of.
- If you look at the iPhone and iPad, there have been monumental leaps across certain A-series SoC generations. A8 to A9 was a monumental leap. A9 to A10 Fusion wasn't quite as substantial, but the introduction of asymmetric processing (high-efficiency cores + high performance cores) is huge. A10 Fusion to A11 Bionic was massive. And it's honestly been going from there. This is a processor family that has seriously steady growth in performance.
As for your comment that I'm only focusing on benchmarks and not real-world performance, I sort of take offense to that. (Especially since Apple has demonstrated native performance of Apple Silicon and shown that you can video edit on even a 2018 iPad Pro SoC [albeit with one extra GPU core enabled] based Mac mini and get far better performance than the current Intel one.) You don't get a 100% accurate view of how well something will perform based on Geekbench or XBench results. This is true, and I'll never argue against that. However, that's not the point of benchmarks. The point of benchmarks is to provide context and comparison between two different things to see just how far apart they are from each other. Is it 100% accurate representation? Again, no. Nor am I saying it is. But it ought to be SOME indication and what it's telling us is that the performance of Apple Silicon is going to be insane.
If a 2018 iPad Pro is holding its own being benchmarked against any Mac that isn't an i9 15" or 16" MacBook Pro, an 8-core or 10-core 27" iMac, an iMac Pro, or 2019 Mac Pro, then it's safe to say that, the native performance of an Apple Silicon SoC (which will undoubtedly be faster than said 2018 iPad Pro's SoC) will be enough to put all of the lower-end Intel Macs to shame right out of the gate. Furthermore, the 27" iMac getting an Intel-based update after the Apple Silicon announcement with the 21.5" iMac NOT getting ANY update is not unintentional. Clearly, Apple needs more time to get the performance down for the higher-end models. All that to say that, for you, a video editor, you're not going to see high-end Apple Silicon Macs this year for the same reason you are apprehensive about Apple Silicon to begin with; performance is not there yet. But you're blind if you don't see that they're going to get there before their two-year timeframe is up.
As for Turbo-Boost, the processor should be able to sustain the load by turning off the other cores. I'm not saying it's optimal. But most video apps are multi-core aware, meaning that Turbo-Boost ought to not be a concern. But, given that one needs to adhere to many other Apple technologies in porting to Apple Silicon anyway (i.e. shifting to Metal, adopting Grand Central Dispatch), this ought to not be a concern, unless you have an Apple dev that doesn't know how to develop for Apple. But, if you have someone developing for Apple platforms and is adhering to best practices when creating an Apple Silicon native macOS binary, then the results in real-world performance should be markedly better than what you get on Intel Macs.
I appreciate the skepticism (and certainly if it were my bread and butter, I'd be as well). But, honestly, it's gonna be okay and there's plenty of real world evidence to support that. Again, we went through this in 2005-06 and, if anything, they're doing a much smoother job of it this time around.