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

Apple Unveils M2

apple.com

Post reply on HN
Print view View original

701–710 of 782 posts

Re: Apple Unveils M2

#701

Post by philwelch »

traceroute66 wrote: post #565
nevi-me wrote: post #509

Earlier quoted context omitted.

I had a laptop that did that (got people noticing), I went to IT a few times to tell them that something was wrong with my laptop, as colleagues' were a bit quieter. I wish that I'd have been more firm with getting a replacement. I now have tinnitus after a year of a really loud laptop. I'm in my early 30s. I can't even tolerate my desktop with relatively quiet fans. One day in the office, I shutdown my laptop for th…

> I now have tinnitus after a year of a really loud laptop. Hmmmmm.... Does your laptop sound like: - A Dyson vacuum ? - A jet engine ? - A Harley Davidson exhaust ? - The sort of sounds you hear in the datacentre hot aisle ? No ? Well, I didn't think so either. Not a cats chance in hell your laptop caused hearing damage. More likely you had the laptop speakers too loud, or you had headphones plugged in which were se…

Yes but what if he did that to drown out his laptop fan?

Re: Apple Unveils M2

#702

Post by dwaite »

PragmaticPulp wrote: post #203
anonymouse008 wrote: post #105

It's very interesting to think the processor releases were holding back the Mac for so long. They are on the cusp on turning Macs into annual upgrades - with meaningful performance upgrades tied to the OS, just like they've done for a decade with the A series / iOS releases. This is firing on all cylinders. The organizational structure and performance is a marvel for this.

> It's very interesting to think the processor releases were holding back the Mac for so long. Apple also made a huge leap forward with their cooling designs. Making the laptop thicker and investing in proper cooling design made a huge difference. My M1 laptop is significantly quieter than my old Intel laptop at the same power consumption level. It’s not even close. Apple’s last generation chassis and cooling solutio…

I suspect Apple was being aggressive on cooling designs based on inaccurate TDP information from Intel. Intel just made the power/thermal footprint configurable - so when you got the final silicon, there was a decision between lower performance than promised, or higher TDP than desired.

Multiply this by adding the chipsets, other IO controllers, and discrete onboard GPUs.

I suspect Apple are being overly conservative now, partially because these chip designs are new, partially because no internal team wants to be where fingers point if the design is inadequate, and partially because a SoP design gives them a bit more space/flexibility to do so.

Re: Apple Unveils M2

#703

Post by skohan »

alxlu wrote: post #540
skohan wrote: post #277

Earlier quoted context omitted.

It's hard to imagine needing this honestly. I'm typing this on an M1 air, and even on this chip it's so snappy and quick even on things like larger compilation jobs. I'm not on the super-power-user end, but imo the price/performance for the air, as well as the form factor seems to be a sweet spot.

I always see people say things like this, but I have an almost fully specced out m1 max and the system grinds to a halt for a few seconds when I do basic tasks like join a zoom meeting from my web browser. Like the mouse will lag, if I’m listening to music it will start to skip or freeze, etc.

Hmm sounds like maybe it's a bug or some specific software issue.

On the M1 air, I sometimes notice that the battery is draining a little bit quickly, and will check and see that I have like 10 Safari windows open and minimized, with over a hundred tabs in total, but I hadn't noticed any slowdown or performance issues.

Re: Apple Unveils M2

#704

Post by skohan »

sliken wrote: post #497
skohan wrote: post #287

Earlier quoted context omitted.

How is the Linux on Arm situation currently? I mean specifically for desktop Linux?

Asahi linux has a port for the M1. Accelerated 3d isn't supported yet, but recently his a milestone of a working rendered triangle. So not yet, but seems pretty close. Marcan has a Patreon if you want to support it.

Is it actually supported to run Asahi linux on an M-series mac? Or is it kind of a sketchy jailbreak type situation?

Re: Apple Unveils M2

#705

Post by sliken »

fomine3 wrote: post #637
sliken wrote: post #448

Earlier quoted context omitted.

Asahi linux has most things working, except the accelerated GPU. Just in the last week or so a triangle was rendered, so progress is has been made. Sadly while apple has 128 bit wide memory on the low end (66-100GB/sec on the mac mini and mba), 256 bit wide (200GB/sec), 512 bits wide (400GB/sec), and 1024 bits wide (800GB/sec). Nothing wider than 128 bits looks to be coming to standard laptops or desktops in the non-…

Massive memory bandwidth is for GPU, so not matter unless you utilize iGPU.

I disagree, Anandtech tested the M1 max (409GB/sec bandwidth), and the CPUs managed 224GB/sec with the faster cores, and a total of 243GB/sec with fast and slow cores.

Sure that's quite a bit less than 409GB, but there's other major parts of the chip like the GPU, video codec acceleration, and neural engine.

Seems pretty unique and useful to me, not everything fits in cache.

Re: Apple Unveils M2

#706

Post by sliken »

skohan wrote: post #704
sliken wrote: post #497

Earlier quoted context omitted.

Asahi linux has a port for the M1. Accelerated 3d isn't supported yet, but recently his a milestone of a working rendered triangle. So not yet, but seems pretty close. Marcan has a Patreon if you want to support it.

Is it actually supported to run Asahi linux on an M-series mac? Or is it kind of a sketchy jailbreak type situation?

Yes, fully supported. No jailbrake/security attack required. In fact Apple even fixed bugs in the bootloader that Asahi linux found. They seem to be intentionally enabling other OSs.

Re: Apple Unveils M2

#707

Post by skrtskrt »

darkteflon wrote: post #629
threeseed wrote: post #572

Earlier quoted context omitted.

Probably the biggest reason is the fan. Allows for increased sustained performance as benchmarks have shown with M1.

That’s a fair point. And I guess Apple wouldn’t keep selling them if people weren’t buying.

They always keep selling not-fully-refreshed versions alongside the new redone machines. It’s confusing to look at head to head.

Re: Apple Unveils M2

#708

Post by Lio »

Matl wrote: post #243
pc86 wrote: post #160

Earlier quoted context omitted.

I have an older work laptop but a nearly brand new (comparatively) battery that's about a year, maybe 18 months old. If I'm actually using my laptop, it will last maybe an hour or two. I might get it to last 3-4 if I just have email up with the screen dimmed. Not sure if it's Windows, too much work surveillance-ware, or just HP being garbage, but my M1 Mac will last twice as long as I've ever needed it to without get…

I am honestly a bit shocked at the low numbers you and parent are reporting. I have not used Windows in a long time but Linux is generally assumed to be less power efficient on laptops and yet I have no problem getting 7-9 hours out of my year old ZenBook 13 OLED. That's still nowhere near what you get on a MacBook Air but perfectly usable imo.

My experience with Linux, Ubuntu and Fedora on HP EliteBook and Dell XPS13 respectively is similar to the Windows numbers posted above.

My 2014 MBP13 still gets better life than my daily driver XPS13 9370.

Re: Apple Unveils M2

#709

Post by fomine3 »

sliken wrote: post #705
fomine3 wrote: post #637

Earlier quoted context omitted.

Massive memory bandwidth is for GPU, so not matter unless you utilize iGPU.

I disagree, Anandtech tested the M1 max (409GB/sec bandwidth), and the CPUs managed 224GB/sec with the faster cores, and a total of 243GB/sec with fast and slow cores. Sure that's quite a bit less than 409GB, but there's other major parts of the chip like the GPU, video codec acceleration, and neural engine. Seems pretty unique and useful to me, not everything fits in cache.

That's true that CPU core consumes massive available bandwidth on AT's test, but it doesn't mean that such bandwidth is used for real CPU usage. I don't oppose memory bandwidth is meaningful for total SoC including iGPU/ML/Video parts.

Re: Apple Unveils M2

#710

Post by astrange »

seabriez wrote: post #682
astrange wrote: post #593

Earlier quoted context omitted.

M2 isn’t intended to have high performance. It’s intended to have a high perf-power ratio, as they said. Often it gets the performance too, but that’s kind of like a lucky break.

And why do I care about perf-power ratio if my laptop is plugged in? WHY? I can understand if it switched to high perf-power ration when Im not plugged, but why would I need that when Im plugged in? Seems like a made up, just because metric.

Otherwise it would throttle instantly because your MBAir has a passive cooling system.

Also, it would make you infertile and it’d drain the battery faster than the charger can recharge it.

Post reply on HN