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

Video streaming battery life improved from 12h (12 Pro Max) to 25h (13 Pro Max)

apple.com

Post reply on HN
Print view View original

121–130 of 136 posts

Re: Video streaming battery life improved from 12h (12 Pro Max) to 25h (13 Pro Max)

#121

Post by bzbarsky »

tdy_err wrote: post #97
gordon_freeman wrote: post #76

Earlier quoted context omitted.

Talking about how expensive the phones have become lately, the max out specs on new iPhone 13 Pro Max costs $1,600 and if you add taxes it would be $1,760!

Your 10% sales tax is robbery. Where is that ?

https://en.wikipedia.org/wiki/Sales_taxes_in_the_United_Stat... sort on third column. A bunch of places in the US have city/county taxes that bring the sales tax above 10% even though the state tax is not.

Just for places I've been in the somewhat recent past, Seattle and Chicago both had 10%+ rates.

Re: Video streaming battery life improved from 12h (12 Pro Max) to 25h (13 Pro Max)

#122

Post by silisili »

Personally, I wish they'd a) move to USB C, and b) work on fast charging.

Longer battery life is good and all, but we've all forgot to plug in and went to work or wherever at 10%.

I have a Oneplus now that charges at 65w, and it's game changing. It could get you from 0 to 90 in the time it takes to drink a cup of coffee.

Once Iphone does those two things, I'm thinking of jumping ship. It doesn't seem so overpriced anymore.

Re: Video streaming battery life improved from 12h (12 Pro Max) to 25h (13 Pro Max)

#123

Post by sk0g »

BugsJustFindMe wrote: post #71
dougmwne wrote: post #55

Earlier quoted context omitted.

I think it is about half due to variable refresh rate and less than half due to hardware efficiency improvements, and maybe 10% due to a larger battery. The 12 and 12 Pro got 11 hours of streaming playback, the 13 gets 15 hours with it's larger battery and more efficient hardware, while the 13 Pro gets 20 hours with it's variable refresh rate. It appears that the battery on the 13 and 13 Pro are close in size since t…

> So all in all, looks like variable refresh will be a potentially very impressive feature, both for smoother UI and better battery life. And I think coming soon to macOS Monterey too. If we thought the M1 MBPs had impressive battery life at launch...

I can't see it as an option for my MBP, though I do have the monitor connected in a roundabout way, through a dock. Monitor did support FreeSync, which is the open one too, so wondering what's going on there. Monterey Beta 6 here (along with all the pains that that version brought).

Re: Video streaming battery life improved from 12h (12 Pro Max) to 25h (13 Pro Max)

#125

Post by bserge »

jackvalentine wrote: post #111
bserge wrote: post #80

Surprised they went with 13. It still has a negative connotation around the world. Especially among people willing to buy an iPhone.

> Especially among people willing to buy an iPhone. I'm intensely curious about your explanation for this. Don't disappoint me with a "they're stupid"!

Couldn't miss the chance to take a dig at them :P

Re: Video streaming battery life improved from 12h (12 Pro Max) to 25h (13 Pro Max)

#126

Post by ksec »

120 Comments and no one has mentioned it.

The large difference to streaming, my guess is that it has to do with a new Video Decoder that fully support VP9 rather than partial hardware acceleration. Previous A14 AV1 and VP9 support on M1 / macOS / iOS all points to higher CPU usage and VP9 is not enabled by default unless you request 4K Content.

So when viewing Youtube, defaulting to VP9 in the same resolution would reduce the data requires to download, as Google uses lower bitrate to achieve perceived quality, this along with some optimisation in 5G Auto Load, better Modem with lower energy requirement ( Expected to be Qualcomm X60 on Samsung 5nm ), variable refresh rate and larger battery.

Note Offline different between 12 and 13 is 40%, that is Battery capacity increase, VRF and new video decoder.

Re: Video streaming battery life improved from 12h (12 Pro Max) to 25h (13 Pro Max)

#127

Post by marcellus23 »

ksec wrote: post #126

120 Comments and no one has mentioned it. The large difference to streaming, my guess is that it has to do with a new Video Decoder that fully support VP9 rather than partial hardware acceleration. Previous A14 AV1 and VP9 support on M1 / macOS / iOS all points to higher CPU usage and VP9 is not enabled by default unless you request 4K Content. So when viewing Youtube, defaulting to VP9 in the same resolution would r…

But Apple doesn’t use VP9 for iTunes videos and that’s how they tested this. Maybe that’s why no one mentioned it?

Re: Video streaming battery life improved from 12h (12 Pro Max) to 25h (13 Pro Max)

#128

Post by y4mi »

BugsJustFindMe wrote: post #91
cr__ wrote: post #87

Earlier quoted context omitted.

I think you’re thinking of “adaptive sync”, which is more of a gaming thing and only works when the app is fullscreened.

> I think you’re thinking of “adaptive sync” Adaptive sync and variable refresh rate are the same thing. > only works when the app is fullscreened Video of the monterey beta shows it works without being fullscreened. https://www.reddit.com/r/macgaming/comments/o1954n/adaptive_... I don't know to what extent the display itself needs to be different, but hopefully Apple planned ahead.

> Video of the monterey beta shows it works without being fullscreened.

That is so confusing. Doesn't that mean you could create a malicious video which basically freezes the display for multiple seconds?

And wouldn't your interface feel super laggy if it's reduced to something like 30fps? That's what most content is produced with, right?

Re: Video streaming battery life improved from 12h (12 Pro Max) to 25h (13 Pro Max)

#129

Post by tentacleuno »

usui wrote: post #70
masonjson wrote: post #47

Earlier quoted context omitted.

I don't want to question wether Apple's work on battery management is better than Google's, but want to outline the meta of such statements. In general, I don't think it's good to compare a new bought device with the device you are replacing, since the old device is probably a couple of years old. So the specs of the old one must be worse than the specs of the new one. Another example would be Tesla buyers who are re…

This is a little presumptuous or possibly a misunderstanding of the parent's comment mentioning "old Android phone". It's entirely possible that the person did a lateral generational phone switch, but you've assumed that they upgraded to a newer phone. I love older generation phones because they're so cheap and your car comparison is perfect because buying a phone new IMO is one of the worst financial decisions you c…

> I love older generation phones because they're so cheap and your car comparison is perfect because buying a phone new

Agreed. I, for one, have pretty much always bought used, and normally one generation behind. When something new comes out, the older phone is boring, which does knock the price down a little.

Re: Video streaming battery life improved from 12h (12 Pro Max) to 25h (13 Pro Max)

#130

Post by ksec »

marcellus23 wrote: post #127
ksec wrote: post #126

120 Comments and no one has mentioned it. The large difference to streaming, my guess is that it has to do with a new Video Decoder that fully support VP9 rather than partial hardware acceleration. Previous A14 AV1 and VP9 support on M1 / macOS / iOS all points to higher CPU usage and VP9 is not enabled by default unless you request 4K Content. So when viewing Youtube, defaulting to VP9 in the same resolution would r…

But Apple doesn’t use VP9 for iTunes videos and that’s how they tested this. Maybe that’s why no one mentioned it?

Good Catch, although I seriously doubt that was the reason why no mentioned it. Because most dont know how it was tested.

Then there isn't a plausible explanation as to why it is so much better than previous generation.

Post reply on HN