Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Apple’s new M1 Pro and M1 Max processors

apple.com

Post reply on HN
Print view View original

981–990 of 1001 posts

Re: Apple’s new M1 Pro and M1 Max processors

#981

Post by bigbillheck »

jedberg wrote: post #527
rubyist5eva wrote: post #189

Earlier quoted context omitted.

Obsession with emissions has really made people start to miss the forest from the trees.

Emissions affect everyone on the planet, no matter where they happen. But polluting the ground or water only happens in China, so a lot of Americans that care about emissions don't care about the other types of pollution, because it doesn't affect them.

> But polluting the ground or water only happens in China,

Do you have any idea how many superfund sites are in Silicon Valley alone?

Re: Apple’s new M1 Pro and M1 Max processors

#982

Post by jedberg »

bigbillheck wrote: post #981
jedberg wrote: post #527

Earlier quoted context omitted.

Emissions affect everyone on the planet, no matter where they happen. But polluting the ground or water only happens in China, so a lot of Americans that care about emissions don't care about the other types of pollution, because it doesn't affect them.

> But polluting the ground or water only happens in China, Do you have any idea how many superfund sites are in Silicon Valley alone?

Yes, one of them is under my house. But that’s not what my comment was about.

I was pointing out the mindset of people who don’t care about ground pollution of their products because their products are made elsewhere.

Re: Apple’s new M1 Pro and M1 Max processors

#983

Post by Teknoman117 »

Is it disclosed anywhere what the bandwidth the CPU complex has to memory? There's the overall bandwidth to memory, which was probably made so high to feed the GPU, but can the CPUs together actually drive 200 or 400 GB/s to memory?

If they can, that's an absolutely insane amount of bandwidth. You can only get ~200 GB/s on an AMD EPYC or Threadripper Pro CPU with 8 channels of DDR4-3200, so here we have a freakin' LAPTOP with as much or even double the bandwidth of the fastest and hungriest workstation CPUs on the market.

Excited to see what a future Apple Silicon Mac Pro looks like and makes me quite envious as someone who is stuck in the x86 world.

Re: Apple’s new M1 Pro and M1 Max processors

#984

Post by jolux »

mrtksn wrote: post #348
jolux wrote: post #343

Earlier quoted context omitted.

> Nice, but on the modern Macbooks, the SSD is soldered and not replaceable. There is no way to upgrade them or replace them if they break, so you just have to throw away the whole laptop. I mean, you can replace the logic board. Wasteful, sure, but there's no need to throw out the whole thing.

People also replace IC’s all the time. Heat it, remove the broken SSD chip, put the new one, re-heat.

I know, but I can understand people preferring socketed parts.

Re: Apple’s new M1 Pro and M1 Max processors

#985

Post by manquer »

spacedcowboy wrote: post #979
manquer wrote: post #956

Earlier quoted context omitted.

It is a good machine yes, although I wouldn't go too much store crashing as an indicator of popularity, that could just be poorly managed web services at Apple. Delivery dates are even now within 1 week after shipping starts (Nov 3-10), so demand seems within their initial estimates. Hardware is not only reason gaming is not strong on Mac. Microsoft had a decent hardware and software offering for their Nokia phones i…

I just wanted to point out that delivery times have now bumped to Nov 26 -> Dec 6 for the same one I ordered on Monday afternoon ago that was Nov 10 -> Nov 17. In less than 2 days, the shipment has been bumped by 2 weeks or more.

Thats interesting, it could be smaller initial supplies perhaps chip shortage or supply chain issues - The average wait time for ships is quite bad.

I would expect demand to taper off during pre order phase. People who would pre order are likely to do it earlier than later, to not have to wait for a month like now.

The rest are going to wait for reviews be able to check it out at a store and buy one when they need it/afford it or at a store over the next months.

Re: Apple’s new M1 Pro and M1 Max processors

#987

Post by GeekyBear »

RantyDave wrote: post #893
ed_elliott_asc wrote: post #315

Earlier quoted context omitted.

Surely the shared ram between cpu and gpu is the killer feature - zero copy and up to 64gb ram available for the gpu!

Yes, but it's a double edged sword. It means you're using relatively slow ram for the GPU, and that the GPU takes memory bandwidth away from the CPU as well. Traditionally we've ended up with something that looks like Intel's kinda crappy integrated video. The copying process was never that much of a big deal, but paying for 8GB of graphics ram really is.

If you're looking at the SKU with the high GPU core count and 64 Gigs of LPDDR5, the total memory bandwidth (400 GBps) isn't that far off from the bandwidth a discrete GPU would have to it's local pool of memory.

You also have an (estimated from die shots) 64 megabyte SRAM system level cache and large L2 and L1 CPU caches, but you are indeed sharing the memory bandwidth between the CPU and GPU.

I'm looking forward to these getting into the hands of testers.

Re: Apple’s new M1 Pro and M1 Max processors

#989

Post by EricE »

dzhiurgis wrote: post #940
josephg wrote: post #720

Earlier quoted context omitted.

Just in case people missed it - the magsafe cable connects to the power supply via usb-c. So (in theory) there's nothing special about the charger that you couldn't do with a 3rd party charger, or a multiport charger or something like that.

MagSafe was a gimmick for me - disconnects far too easy, cables fray in like 9 months, only one side, proprietary and overpriced. Use longer cables and they will never be yanked again. MBP is heavy enough that even USB-C is getting pulled out on a good yank.

I briefly had an M1 Macbook Air and the thing I hated the most about it was the lack of Magsafe. I returned it (needed more RAM) and was overjoyed they brought Magsafe back with these and am looking forward to having it on my new 16" You can also still charge through USB C if you don't care for Magsafe.

Re: Apple’s new M1 Pro and M1 Max processors

#990

Post by EricE »

hatsubai wrote: post #444
Gene_Parmesan wrote: post #370

Earlier quoted context omitted.

Just some genuine honest curiosity here; how many workloads actually require 64gb of ram? For instance, I'm an amateur in the music production scene, and I know that sampling heavy work flows benefit from being able to load more audio clips fully into RAM rather than streaming them from disk. But 64g seems a tad overkill even for that. I guess for me I would prefer an emphasis on speed/bandwidth rather than size, but…

Another anecdote from someone who is also in the music production scene - 32GB tended to be the "sweet spot" in my personal case for the longest time, but I'm finding myself hitting the limits more and more as I continue to add more orchestral tracks which span well over 100 tracks total in my workflows. I'm finding I need to commit and print a lot of these. Logic's little checker in the upper right showing RAM, Disk…

I went for 64GB. I have one game where 32GB is on the ragged edge - so for the difference it just wasn't worth haggling over. Plus it doubled the memory bandwidth - nice bonus.

And unused RAM isn't wasted - the system will use it for caching. Frankly I see memory as one of the cheapest performance variables you can tweak in any system.

Post reply on HN