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Apple Readies MacBook Pro, MacBook Air Revamps

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271–280 of 351 posts

Re: Apple Readies MacBook Pro, MacBook Air Revamps

#271

Really would like to know more about the GPU and Ram. At 128 gpu cores vs the 8 in the M1 you talking 16 times the potential GPU power which could put it up there near the top of discrete GPU's.

Thought this was the most important piece of info in that article. Could be a game changer for a number of applications considering the softwares and dev support Apple can provide.

Re: Apple Readies MacBook Pro, MacBook Air Revamps

#272

Earlier quoted context omitted.

As has been mentioned elsewhere, devoting some cores to background tasks and reserving the others for higher-priority stuff also makes the system feel more responsive. See, for example, this article from yesterday: https://eclecticlight.co/2021/05/17/how-m1-macs-feel-faster-... Long story short, segregating background work from foreground work means that Spotlight indexing won't cause the UI to become sluggish. I'm g…

But separating the background work doesn't actually require efficiency cores. With 40 performance cores, you could still dedicate 4 or 8 of them to "background" processes only. As that article you linked shows, the background processes would simply complete more quickly without affecting interactive work on the machine.

In upper end extreme case, using 8 HE Core instead of 8 HP Core saves you 24 to 32W. Those 32W could allow more GPU usage or some other part of system such as ISP or NPU.

At the end of the day you will still need HE Core, they just aren't as important comparing to a Battery devices.

Not to mention Marketing, Die Size cost consideration.

Re: Apple Readies MacBook Pro, MacBook Air Revamps

#273
post #33

> Apple plans to launch the redesigned MacBook Pros in 14-inch and 16-inch screen sizes. They’ll have a redesigned chassis, magnetic MagSafe charger and more ports for connecting external drives and devices. Apple is also bringing back the HDMI port and SD card slot, which it nixed in previous versions, sparking criticism from photographers and the like. Even if they continue to force the anti-feature that is the Tou…

I've had MacBooks since 2005, and I'm an amateur photographer. I really don't miss the ports or MagSafe at all. I actually like the USB charging better, as it allows you to connect the cord to either side, and it doesn't get accidentally knocked out if I use it on my lap. I've found that the cord being on other side is nearly as good as magsafe anyway, as it will be better positioned to pull out if it gets yanked. Ye…

My impression from these reports is that Apple is planning to differentiate their laptops more strongly than they have been: there will be ones that place "thin and light" as a priority, and ones that place "give me more I/O, dammit" as a priority. If you want a high-performing Mac laptop that's thin and light and you don't care abort ports (hi, this is me), you can already get an M1 Air that has the same performance as the M1 MBP (and this is exactly what I did). The M1 Air is good enough that you're not really losing anything other than the perceived cachet of putting "Pro" on the nameplate. (Well, you are also losing the Touch Bar, but one can argue that's actually a net gain.)

From these reports, the next revision to the Air is going to get a bit of a redesign, colors, faster CPU, etc., but "Air" is still almost certainly going to mean the line that prioritizes being thin and light. You will still have a Mac laptop that gives you what you want. But people who do want more ports will, for the first time since Mac laptops went USB-C, also get what they want. (Or at least get closer to it.)

Re: Apple Readies MacBook Pro, MacBook Air Revamps

#274
post #252
post #33

Earlier quoted context omitted.

I've had MacBooks since 2005, and I'm an amateur photographer. I really don't miss the ports or MagSafe at all. I actually like the USB charging better, as it allows you to connect the cord to either side, and it doesn't get accidentally knocked out if I use it on my lap. I've found that the cord being on other side is nearly as good as magsafe anyway, as it will be better positioned to pull out if it gets yanked. Ye…

As a musician with tons of peripherals, some of which are annoyingly sensitive and can't be used through hubs or anything but straight-through adapters (my turntable mixer's digital interface, for example), I welcome the return of the ports. Its not uncommon to have an audio interface, one or more midi controllers, the aforementioned mixer all connected for instance. And basically all of those things still use USB-B…

Search "USB-C Printer Cable" and you'll find a number of results, i.e.: https://www.monoprice.com/product?p_id=33457

Re: Apple Readies MacBook Pro, MacBook Air Revamps

#275

Earlier quoted context omitted.

I bought a 10-core iMac Pro, and it's a screamer - super-fast and super-reliable even after 16+ hours of use a day. So I don't regret that choice, even if it was the most expensive computer I've ever bought. A 32+8 core M1 for a less insane price sounds like an easy upgrade choice. The lingering question is memory. 16GB won't be enough.

> super-fast and super-reliable even after 16+ hours of use a day. What does the time have to do with it? It's not like a car with moving parts.

Probably just a combination of the OS properly managing memory and the hardware being “powerful” enough.

Re: Apple Readies MacBook Pro, MacBook Air Revamps

#276
post #77
post #46

It says the split for performance versus efficiency cores will be: - 20 total, 16 high performance, 4 efficiency - 40 total, 32 high performance, 8 efficiency Which is kind of interesting given that the 8 core M1 is split half/half at 4 high performance, 4 efficiency. Sounds like perhaps MacOS doesn't typically have more than 4 cores worth of low-priority work, regardless of the system size/workload?

Consider the use cases. The Mac Pro is a desktop, always plugged in and used for the power. The M1 is on a laptop running on a battery where efficiency is more important to improve the battery life.

I wonder what % of high end users actually work on battery only. For me it's mostly a desktop that I move between home and office. And like maybe 2% of time batteries.

Re: Apple Readies MacBook Pro, MacBook Air Revamps

#277

Earlier quoted context omitted.

Apple’s goal is to have every portable computer work like an iPhone: you charge it overnight, then unplug it and use it unwired for a full day. This is why the charging port on the mouse is on the bottom, for instance. They never quite got their Intel laptops there, though. (Especially running MS Teams, Slack, and Chrome!) It’s kind of funny that, now that they can make a laptop that really does last all day on one c…

Unfortunately that doesn't work for those of us that need to run compute intensive tasks, like browsing the web, or compiling stuff, or running docker. There's this stupid dream that the computer needs to be light and fanless and thin and sexy. It doesn't need to do that. I'm happy if it doesn't melt while trying to run some software I need to do my job.

I can comfortably work all day on battery doing all of those tasks on my M1. I can work all day at a coffee shop and leave my charger at home.

Re: Apple Readies MacBook Pro, MacBook Air Revamps

#278

Will TSMC 3nm be the second die shrink in a row where Apple does the unconventional thing and takes a reduction in power/heat instead of a performance increase? >Compared to it’s N5 node, N3 promises to improve performance by 10-15% at the same power levels, or reduce power by 25-30% at the same transistor speeds. https://www.anandtech.com/show/16024/tsmc-details-3nm-proces... It would certainly help pack that many c…

Well, 3nm is 2022, so the newer M variant in this article wont be using it.

Re: Apple Readies MacBook Pro, MacBook Air Revamps

#279

The Mac Pro Mx CPUs illustrate the promise of ARM and Apple Silicon. When the Firestorm core is one of the fastest available but uses less than 5 watts, Apple can use a ton of them at once without massive heat and power usage. The top end Mac Pro with 32 Firestorm on one chip is probably will have a GeekBench Multicore score approaching 60,000, triple the fastest Xeon based Mac Pro. And it probably uses half the 300…

Why focus on the Geekbench test? I thought the industry standard for CPU testing was Cinebench and AIDA64.

I don’t know about AIDA64, but Geekbench tests a variety of more real world or at least more varied scenarios compared to cinebench which just does CPU rendering.

You can see the full description here (https://www.geekbench.com/doc/geekbench5-cpu-workloads.pdf) but there’s compression, encryption, compiling, and several other tests.

Re: Apple Readies MacBook Pro, MacBook Air Revamps

#280

Earlier quoted context omitted.

> it can probably keep scaling to 16 and 32 Bad assumption. It's pretty difficult to write a multithreaded program that scales up to 32 cores. You have to carefully avoid all sources of process-wide contention. The only cases where it is easy to just keep adding cores are where the units of independent work are overwhelmingly large compared to everything else, like video compression.

No, it's certainly hard to write a multithreaded program that scales up to 32 cores. But it's also hard to write a multithreaded program that scales up to 8 cores. I'm saying that if we exclude the multithreaded programs that don't scale to 8 cores, most of them can be made to scale to 32 cores with reasonable effort.

I don’t really agree. You can get cpus where eight cores share an l2 cache and you can pretty much obliviously program those and get totally reasonable scaling because the contention penalty is the L2 access latency. There are no 32-core parts with that property, so you’re paying for at best L3 access latency and maybe main memory, possibly even NUMA node-crossing latency.
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