Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
IIRC, typically a 4K video stream is roughly 2X - 2.5X the size of the corresponding 1080p stream, at least for Netflix that is.

So that 15.3 Mbps 4K HDR Stream will be about 7 GB Per hour. In contrast, the top quality for 1080 will be about 6-7 Mbps or 3 GB per hour. (Note that the files are often much smaller than this actually, judging by the file sizes for Netflix downloads.) Actually, come to think of it, it’s a bit under 6 Mbps on my 4K TV for 1080p streams but it’s in that ballpark nonetheless.

I don’t know if this carries over to the screensavers but if it does, then that would mean around 1.2-1.5 GB for those screensavers. IOW, 4 GB for three of them.
Oh I understand what you are stating. I thought you were saying that the screen savers are streamed.

I guess using Netflix to compare might be okay, I am not sure of the technical difference between to the two, so not sure if it is a Netflix would be a good gauge to extrapolate the size of the aerials.

I would have guessed that the Netflix 4k stream would be a little higher than 2-2.5 that of a 1080p stream. Is this HDR?

Might be a nice thing to research one day.

Even still, this would add up quick once you have more than a few screen savers downloaded.

I personally wished I could control which ones were downloaded, as I would permanently remove any aerial that looks industrial or urban. I would probably remove the desert and Greenland ones too.

Actually, if I could just keep the Hawaii one that starts out on the water, I would be fine with that. That is such a beautiful screen saver.
 
Yes, 4K HDR Netflix with Dolby Vision is 15.3 Mbps according to my TV.

Thinking back on it, it may be more accurate to say that 4K HDR Netflix is 2X to 2.75X more bandwidth than 1080p Netflix, because on 4K TVs with HEVC support they will stream 1080p at less than 6 Mbps. The higher Netflix bitrates for 1080p were usually with h.264.

However, now I am reading that iTunes 4K may be higher bitrate than Netflix 4K at times... but neither compare to 4K UHD Blu-Ray discs.

All I know for sure is that top tier Netflix 4K looks excellent, but is still sometimes a notch below top tier 4K discs. I’m not prepared to say for iTunes 4K yet since I haven’t had it long enough and the few 4K titles I have through iTunes are mostly upscaled releases from 2K masters.

eg. Bumblebee, Wonder Woman

https://ultrahd.highdefdigest.com/67962/bumblebee4kultrahdbluray.html
 
According to Vincent Teoh, Apple TV 4K can achieve 25 Mbps at peak.


Spider-Man: Homecoming - 50-90 Mbps on the disc, and fluctuates from 15 to 25 Mbps on Apple TV.
Transformers: The Last Knight - 50-100 Mbps on the disc, and averages 12 Mbps peaking at 25 Mbps on Apple TV.
 
According to Vincent Teoh, Apple TV 4K can achieve 25 Mbps at peak.
Is he talking about only 25Mbps for the ATV4k? or iTunes streams?

I am pretty sure he is referring to iTunes, as I believe the ATV4k is capable of a lot higher bitrates.
 
Is he talking about only 25Mbps for the ATV4k? or iTunes streams?

I am pretty sure he is referring to iTunes, as I believe the ATV4k is capable of a lot higher bitrates.
Yes iTunes streams on the ATV 4K.

Interesting the average was 12 Mbps though for that title. 12 Mbps is about 5.4 GB/hour, which is less than the 7 GB/hr that Netflix quotes for their (15+ Mbps) 4K streams.
 
I don't know how to check the amount of remaining storage on the Apple TV. But it's clear I'm not in the target market for the 64 GB users.

I just checked the app management settings and currently I have only a dozen of installed apps with the largest less than 90 MB. The total of all the apps together is less than 0.5 GB. I'll probably end up eventually installing up to about another dozen apps, but similar ones so likely similar amount of storage usage. Total only about 1 GB for apps.

I wonder if iOS 13 & Apple TV+ will change things though in the fall.
 
I don't know how to check the amount of remaining storage on the Apple TV.

You can use Xcode, or one of the free apps on the tvOS appstore, just do a search for "storage on the App Store" using the Siri button, and a few will pop up.

A warning though, both Xcode and the apps give inaccurate data, as they show total, free, and used space of the ATV, but the used space includes cached data.
[doublepost=1562428061][/doublepost]As for people that was thinking of getting a 32GB ATV4k from the refurbished store, they are now gone from the US Apple Refurbished Store.
 
I haven't seen the ATV4k on the Apple Refurbished store in a long time.

I have been checking almost everyday, sometimes multiple times a day, and I haven't seen them.

The refurbished store almost always have the ATV4 on there, and until a few days ago they had both 32GB and 64GB, but now only the 64GB remains.

But, I think it has been almost two months since a ATV4K has been listed.

Anyone get one recently?
 
I haven't seen a refurbished ATV 4K on the Canadian site for a while. I've had better luck finding used units that have a few months of Apple warranty for much lower prices; however, used units are rare too.
 
I haven't seen a refurbished ATV 4K on the Canadian site for a while. I've had better luck finding used units that have a few months of Apple warranty for much lower prices; however, used units are rare too.
What do you mean by awhile? As mentioned, the 64 GB 4K model was there when I bought my 32 GB model back in July.


At that time @vertical smile reported they were there on the US refurb site too.
 
What do you mean by awhile? As mentioned, the 64 GB 4K model was there when I bought my 32 GB model back in July.
I have seen them but never managed to buy one since they seem to come in and out of stock for me. Maybe it was my browser that was causing a problem? I'm not really sure. I gave up and managed to purchase a couple of units: one from from Kijiji and one from Letgo. Both were 32 GB units with at least 9 months of factory warranty. These units were for friends.

My 4k 64 GB unit came from a 2018 Boxing Day sale on the CIBC Aventura website.
 
The Refurbished units vanished from stock the day they announced 1 year free of Apple TV+ If you buy various products and have not re-appeared since... on the UK Apple store anyways.
[automerge]1569107883[/automerge]
 
The Refurbished units vanished from stock the day they announced 1 year free of Apple TV+ If you buy various products and have not re-appeared since... on the UK Apple store anyways.
[automerge]1569107883[/automerge]
That was announced two weeks ago, in the US store, I haven't seen any ATV4K models since July.
 
I see the 4k 32 and 64 on the Canadian Apple website: https://www.apple.com/ca/shop/refurbished/appletv
Thank you!

The ATV4K is back in the US Refurbished store also, in both 32GB and 64GB for $149 and $169, respectively.

It has been a while since they have been on the Apple Refurbished store, so if any of you were looking for a good deal on one, don't wait, because they might not be there tomorrow.

I know of two people that will be getting these.
[automerge]1569356741[/automerge]
Here is the link for the US Refurbished Store:

 
Thank you!

The ATV4K is back in the US Refurbished store also, in both 32GB and 64GB for $149 and $169, respectively.

It has been a while since they have been on the Apple Refurbished store, so if any of you were looking for a good deal on one, don't wait, because they might not be there tomorrow.

I know of two people that will be getting these.
[automerge]1569356741[/automerge]
Here is the link for the US Refurbished Store:

A day or two after posting this, all the refurbished ATVs sold out.

Who knows when they will be back again.

Apple's refurbished store seems to be the best place to get a 64Gb ATV4k, as long as you are not in a hurry.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.