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Apple M1 Ultra

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Re: Apple M1 Ultra

#501

Earlier quoted context omitted.

Not to mention if you build your own PC you can upgrade the parts as and when, unlike with the new Mac where you'll eventually just be replacing the whole thing.

I believed that until I realized I couldn't individually upgrade my CPU or RAM because I have a mobo with LGA1150 socket and only supports DDR3 (and it's only 6 years old). So eventually you still have to "replace everything" to upgrade a PC.

AMD has never disappointed me in this regard.

Re: Apple M1 Ultra

#502

Earlier quoted context omitted.

> The performance per watt isn’t in the same universe and that matters. I couldn’t give less of a shit about performance-per-watt. The ONLY metric I care about is performance-per-dollar. A Mac Studio and Threadripper are both boxes that sit on/under my desk. I don’t work from a laptop. I don’t care about energy usage. I even don’t really care about noise. My Threadripper is fine. I would not trade less power for less…

The vast majority of developers today has a laptop as their main machine. Performance-per-watt is absolutely crucial there.

I'll just never understand this. Chances are you are at the same desk day in and day out. You probably have monitors and external keyboard/mouse hooked up because hunching over a laptop and using a touchpad is unnecessary torture for a fixed workspace. Given that why would you hamstring yourself with a thermally constrained and overpriced-because-miniaturization-isn't free setup?

Until maybe these M1's (and I'm not entirely convinced) I've not in the 20 years I've been computing seen a reasonably configured desktop (eg not just a laptop on a stick ala iMac but an ACTUAL desktop) ever not smoke the pants off of every single laptop you could put up against it. It's hard to beat the one-two punch of lots of power and room to cool it. If you are sitting at at desk why the heck wouldn't you leverage that?

Re: Apple M1 Ultra

#504
post #307

This is insane. They claim that its GPU performance tops the RTX 3090, while using 200W less power. I happen to have this GPU on my PC and not only it costs over $3000, but its also very power-hungry and loud. Currently, you need this kind of GPU performance for high resolution VR gaming at 90 fps, but its just barely enough. This means that the GPU will run very loudly and heat up the room, and running games like HL…

Too bad that historically Apple has not given any attention to Mac gaming.

Except when Bungie was going to release Halo on Mac[0] and Microsoft swooped in bought them and made it an Xbox thing.

[0] https://www.youtube.com/watch?v=Tzrme9yWens

Re: Apple M1 Ultra

#505

Earlier quoted context omitted.

Also, the memory model is quite different - with the ultra-fast SSD and ultra-fast on-die RAM. You can get away with significantly less RAM for the same tasks, not just because of de-duplication but because data comes in so quickly from the SSD that paging isn't nearly the hit it is on say an Intel based Mac. I'd expect it to work more like a game console, streaming in content from the SSD to working memory on the fl…

I agree, I got a 8GB mac mini (was really just curious to see the M1 in action and the 16GB model was backordered badly) and it performs extremely well memory wise. I often use 12GB+ and I never notice unless I check activity monitor.

That's what I based my assessment on too. I had an 8GB M1 MacBook Pro (swapped for the 16GB M1 Pro MacBook Pro 14 since) and I had no issues developing iOS and macOS apps with it using Xcode, and Rust development with VSCode. This brought my old 16GB Intel MacBook Pro to its knees.

Re: Apple M1 Ultra

#506
post #230

Is it actually more powerful than a top of the line threadripper[0] or is that not a "personal computer" CPU by this definition? I feel like 64 cores would beat 20 on some workloads even if the 20 were way faster in single core performance. [0] https://www.amd.com/en/products/cpu/amd-ryzen-threadripper-3...

My workstation has a 3990x. Our "world" build is slightly faster on my M1 Max. https://twitter.com/kiratpandya/status/1457438725680480257 The 3990x runs a bit faster on the initial compile stage but the linking is single threaded and the M1 Max catches up at that point. I expect the M1 Ultra to crush the 3990x on compile time.

Do you have any benchmarks of the two to share against a mean to ensure its built optimally? Maybe something like https://opendata.blender.org ? It's painful hearing random anecdotes only to learn the person didn't apply thermal paste to their cpu.

Re: Apple M1 Ultra

#507

Earlier quoted context omitted.

They would never do that

They have done this previously for dual socket Xeons. Historical precedence doesn’t necessarily hold here, but in fact, it’s been done on the “cheese graters” previously

They also water-cooled them but I’d bet a lot of money we never see that again either.

Re: Apple M1 Ultra

#508

Earlier quoted context omitted.

> I wonder if they'll just do 4x M1 Max for that. Unlikely, M1 Ultra is the last chip in the M1 family according to Apple [1]. "M1 Ultra completes the M1 family as the world’s most powerful and capable chip for a personal computer.”" [1] https://www.apple.com/newsroom/2022/03/apple-unveils-m1-ultr...

They also said that the Mac Pro is still yet to transition. So they'll have to come up with something for that. My suspicion is that it won't be M branded. Perhaps P1 for pro?

It may be M branded, just not M1. It could be based on an M2 Ultra or M2 Mega or whatever and what they said would still hold true.

Re: Apple M1 Ultra

#509

Earlier quoted context omitted.

I don't deny such things happen but it's illogical. If you have 20 people on desktops a small fraction of them will use more energy for microwaving lunch, making coffee or on air conditioning than they will save in aggregate on this nominal reduction in power draw.

Microwaving lunch: 2 minutes at 800W; desktop with monitor: 8 hours at 150W, that is 45 times higher. Similar for coffee, no simple math for AC. If you can reduce 150W to 80W, it is both significant and achievable - this is what my desktop usually draws.

You forget these things sit ~idle (or at browser load) 99% of the time. The magnitude of difference only expresses at peak consumption. Furthermore, what about the lost time/hassle for changeover plus embodied energy in throwing out the last system? It's insanity.

Re: Apple M1 Ultra

#510

I think the GPU claims are interesting. According to the graph's footer, the M1 Ultra was compared to an RTX 3090. If the performance/wattage claims are correct, I'm wondering if the Mac Studio could become an "affordable" personal machine learning workstation (which also won't make the electricity bill skyrocket). If Pytorch becomes stable and easy to use on Apple Silicon [0][1], it could be an appealing choice. [0]…

The GPU claims on the M1 Pro & Max were, let's say, cherry picked to put it nicely. The M1 Ultra claims already look suspicious since the GPU graph tops out at ~120W & the CPU graph tops out at ~60W yet the M1 Studio is rated for 370W continuous power draw. Since you mention ML specifically, looking at some benchmarks out there (like https://tlkh.dev/benchmarking-the-apple-m1-max#heading-gpu & https://wandb.ai/tcapel…

A 16" macbook with an M1 only uses around 100w and that's when maxing all the things. It runs at about 40w for CPU and 60w for GPU. Based on those numbers, 120w seems totally expected for two chips at the same frequency.
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