CommentName

Soli said:

CommentName said:

Soli said:

crowley said:

Soli said:

Will we ever see this in adopted in Apple's devices? Sure, their Macs are doing away with Ethernet, but with USB-C having more than enough throughput a dongle would be adapted; but I'm more concerned with their routers and, especially, their Apple TV, which is still only at 100BASE-T (100mib/s).

Is there much need?  What does the Apple TV do that needs that much throughput?

There are plenty of benefits for using GigE in the next Apple TV release. First of all, let's remember that it's running full-duplex from your router or switch, unless it's poorly setup, so that means it's 100mib/s in each direction. Now consider that it's not bytes, but bits, so let's divide that by 8 to get a more normalized, maximum throughput in MiB/s. (Note that I'm using the IEC notation, not the JEDEC notion which is confusion as it's the exact same notion as SI, which refers to the original, BASE10 (10^3 +3) instead of the more apt, binary BASE-2 (2^10 +10) that we use in computers for scaling by 1024, not 1000.

That means 100 mebiibit per second is is 12.5 mebibytes per seconds. A 1080p video is 1920×1080 "Full HD" which is 2.07 megapixels. At a 30Hz aka 30 fps, how many colors can you apply to each pixel in High Profile? What is the results for 60fps? What is the data rates for 2160p aka 4K for videos shot on the iPhone? What overhead is there for the video? How would GigE affect buffering times over 100Mib/s?

100BASE-T is doable—which is the case I made when the 4th gen Apple TV came out and people bitched—but GigE would be optimal when 4K, even though you can still get 2160p over Full Duplex 100BASE-T when using HEVC.

Um... not sure your math is sound here. Looks like you forgot compression. HEVC streams for damn good picture quality are in the 6-7 Mbps range for 1080p, and 16-17 Mbps for 4Kp60 at the packager egress for HLS so that with with overhead. So... your single stream Apple TV has zero need for NbaseT. 

Now the next flavor of the AirPort Extreme with ac wave 2, that may be useful, or Mac Pro for SAN connections... do they still do a Mac Pro?

1) How did I forget compression when HEVC is, itself, a video compression standard?

2) Your "6-7 Mbps range for 1080p, and 16-17 Mbps for 4Kp60" is erroneous has it allowed no variance for different profiles. I didn't even think those ranges would even account for the complexity range of a say 1 second of an image with all pixels being the exact same color to another second with all pixels being a different color, which a single, basic profile.