EDIT:// I misread the topic title but I'll leave my post as-is perhaps some would like to see a 16" to 16" comparison too.
I went from a 16" Core i9 8 Core Intel with 16GB RAM and a 5500m GPU to a 16" 32GB RAM, M1 Max (32 Core GPU variant).
Screen
Thus far I really like the new machine. The screen is unbelievable. I watched a lot of HDR content and it's pretty incredible simple as that. The 120Hz is great, the response time on the LCD feels vastly superior to my previous Intel 16".
Performance
Performance CPU wise is similar in feel to my 16" Intel which is to say everything is snappy all the software opens quickly and reacts fast to input. I did try some final cut exports and the M1 Max is obviously way faster. Moving around the timeline is also much faster and smoother than on my Intel system.
The storage is fast. I'm getting 5.5GB-6GB/s in benchmarks. I expect the 7.4GB/s quoted by Apple is either only attainable on the higher capacity (2TB, 4TB or 8TB) models or that's the raw speed without a file system. In any event, extremely quick storage and the random access is high too.
Graphically the system is very impressive. There were moments using my external 5K display on my 16" Intel would have certain applications (Chrome for instance) have intermittent lag when things got graphically intensive like viewing a very demanding webpage with lots of effects. This just isn't a thing on the M1 Max, it's extremely consistent.
I've not run any games on either machine so can't comment on that.
Noise
I think one of the most remarkable things about this computer is the silence. I've had the system about 36 hours and in that time I've done a 500GB data migration, I performed a 500GB Time Machine backup, I did several Final Cut Pro exports, I watched a 4K HDR movie for 2 hours, played some 8K videos for ***** and giggles.
All of those tasks would make the fans on my Intel 16" go off like crazy. Just watching a 4K video in YouTube could make it audible. Heck just plugging it into an external 5K monitor could make it audible if I got a little close to it.
Contrast that with the new 16" Apple Silicon system. I literally have not heard it yet. I have been unable no matter what I do thus far to get it to spin up. I don't know if the fans are just turned off or at a very low RPM but either way I can't hear a thing no matter how close I get to it.
Temperatures
And the system runs a lot cooler. It's instantly identifiable when you touch the bottom or the palm rests and the area above the keyboard that it just feels cold. I feel like my Intel 16" felt warm even if it was just sitting there idle.
Physical Body / Thickness
The new system does feel thicker when you hold it, the taper on the base is reduced giving it the appearance of being thicker and when you sit them side by side on a desk the new one does sit slightly higher but it's not a negative to me it's just different. It feels great to type on and I don't feel I'm straining to type on its slightly higher deck etc
Trackpad & Keyboard
Trackpad feels the same as the previous model which has always been great. The keyboard feels roughly the same but the keys on the new one are a bit lighter and don't take as much force to actuate. I like it, feels great.
I never liked the Touch Bar, found it an unnecessary annoyance that detracted from the usability of the machine. Having physical keys back is great but funny enough it is taking some getting used to.
Ports
In the past I've at most only used two USB-C ports simultaneously and I usually plug my laptop into a Thunderbolt 3 dock which allows the use of two external displays, wired ethernet and powers the laptop at the same time via the one cable.
The new machine works fine with that dock, though it is slightly slower to negotiate its connectivity with that dock compared to my Intel machine. We're talking an extra 2-3 seconds for a total negotiation time of about 7 seconds on the M1 Max equipped system compared to like 4-5 seconds on the Intel one. Not a problem but worth noting just because it's different, perhaps a Thunderbolt 4 native dock would negotiate faster I don't know.
The MagSafe port is nice, I had Macs with MagSafe 1 and 2 in the past and this feels just like MagSafe 2 but with some improvements. The cable is braided and is much more malleable. It has the same flexibility as a piece of twine instead of the USB-C power cables they shipped with my Intel 16" in the past which liked to keep its shape due to its stiffer plastic sleeving.
I am slightly disappointed that the HDMI port is 2.0 and not 2.1 but at the same time I never used the HDMI port on my 2015 15", I never purchased a USB-C to HDMI adapter for my 16" MBP and I guess I'll likely never use the HDMI port on this machine. I'm just disappointed because it's a very expensive machine and it should really come with modern protocols for all the ports it has in my opinion.
Conclusion
I'm already in love with this machine. The only real negatives I have are due to developers not yet having updated their applications to Apple Silicon. Rosetta works and it's fine it offers acceptable performance but certain apps like Discord which are still Intel only run like dog ****. It runs 10x better in both Safari on the Apple Silicon Mac and in the native client on my Intel based Mac.
I did forget to mention the notch. This actually doesn't bother me physically but the way Apple has handled it in software is atrocious. I use iStat Menus which puts a lot of icons in the menubar for information I'm interested in and well.. my menubar is full and many of my icons have simply disappeared with no way to reveal them. Apple needs to fix this, there has to be some way to reveal hidden icons as its a usability nightmare.
So hardware wise, great. Software could do with some work.