I would love to see the innards of the A12Z Mac mini, but Apple strictly forbids disassembling these units.
I would love to see the innards of the A12Z Mac mini, but Apple strictly forbids disassembling these units.
Interestingly, Apple now supports VP9 video decoding in iOS/iPadOS 14, finally allowing for 4K YouTube.
Presumably this is hardware support, and presumably that hardware support has been there in the hardware for 5 years.
They also added WebP support in Safari. I guess they gave up that fight.Interestingly, Apple now supports VP9 video decoding in iOS/iPadOS 14, finally allowing for 4K YouTube.
Presumably this is hardware support, and presumably that hardware support has been there in the hardware for 5 years.
Well, it's closer to 3K but that's more than 2K.What's the point of supporting 4K YouTube on a device that doesn't have a 4K display?
Aircast it to your 4k TVWhat's the point of supporting 4K YouTube on a device that doesn't have a 4K display?
AppleTV 4K (A10X) also supports 4K YouTube now (or at least when tvOS 14 is released). It didn't before.Aircast it to your 4k TV
I have one of those, and it's nice.AppleTV (A10X) also supports 4K YouTube now (or at least when tvOS 14 is released). It didn't before.
If this doesn't light a fire under Intel/AMD then they're in real trouble. AMD's doing ok now but Intel needs to get their act together fast. No more Netburst or Bulldozer shenanigans.
If Apple was successful with this what could Intel/AMD do?
What can they do? They can continue to execute so in the PC market it'll not create room for WoA efforts to succeed.
Finally - an explanation for why Oracle makes money.. . . If porting software was easy and cheap, no one would be using and paying for Oracle at this point.
Finally - an explanation for why Oracle makes money.
If you look at the JSON for the two tests, the clock speed is actually basically the same:Despite the dev kit agreement stating benchmarketing is not allowed, Rosetta 2 benchmarks are now up.
VirtualApple A12Z 2.4 GHz
~840 single core
~2950 multi-core
Note that this only utilizes four cores. Also, the clock speed is slightly lower.
iPad Pro A12Z 2.49 GHz
~1125 single core
~4700 multi-core
However, this is utilizing all 8 cores.
If we just compare single core speed, and ignore the 3.75% clock speed discrepancy, then the Rosetta 2 speed is about 75% of native. I would assume this represents translation at install.
BTW, coincidentally, the single core speed here is basically identical to the single core speed of my A10X iPad Pro from 2017, and multi-core of the dev kit under Rosetta is much faster than my iPad Pro. My iPad Pro is my daily mobile driver, and I have no qualms about its speed for general usage. The times when I've noticed it slow down is when doing video editing.
OK. That means the speed comparison is direct. With Rosetta achieving 75% of native iPadOS speed, that’s pretty decent.If you look at the JSON for the two tests, the clock speed is actually basically the same:
View attachment 24487View attachment 24488
Not a great surprise - this feature has been optimised a heck of a lot on Intel CPU's to keep them competitive with AMD and nVidia hardware encoding solutions.The hardware accelerated encoding was much slower too (which was a surprise).
Take this as you will:
Report: Super-Lightweight 12-inch MacBook Powered By Apple Silicon to Launch This Year
Some tests we did on the Apple Transition kit with Apple Silicone. Encoding the free animation movie bbb_sunflower_1080p_30fps to a MP4 format with HEVC and AAC with a video bitrate of 6000k and audio bitrate of 256k Encoding with FFmpeg 4.3.1 compiled versions for ARM and Intel (with x265...forums.macrumors.com
Some tests we did on the Apple Transition kit with Apple Silicone.
Encoding the free animation movie bbb_sunflower_1080p_30fps to a MP4 format with HEVC and AAC with a video bitrate of 6000k and audio bitrate of 256k
Encoding with FFmpeg 4.3.1 compiled versions for ARM and Intel (with x265 library)
Both system running Mac Big Sur Beta 5
Software encoding for video and audio:
Intel Core i9 2.3Ghz 8core 5:09
Intel Core i3 2.8Ghz. 23:18
Apple Silicone A12Z 36:43
Hardware encoding with Apple Videotoolbox (*) for video and audio:
Intel Core i9 2:58
Apple Silicone A12Z 10:51
Intel Core i3 N/A (does not have HEVC hardware accelerated encoding)
Although the Apple transition kit is not using the most powerful ARM atm it does clearly indicate they are much slower in doing hard crunching numbers. With the A14 it may be a bit closer to Intel Core i3
The hardware accelerated encoding was much slower too (which was a surprise).
Basically a Core i5, i7 and i9 will be much faster for the foreseeable future.
A side note: the Apple kit got incredible warm and it may have did some throttling along the test.
Take this as you will:
Report: Super-Lightweight 12-inch MacBook Powered By Apple Silicon to Launch This Year
Some tests we did on the Apple Transition kit with Apple Silicone. Encoding the free animation movie bbb_sunflower_1080p_30fps to a MP4 format with HEVC and AAC with a video bitrate of 6000k and audio bitrate of 256k Encoding with FFmpeg 4.3.1 compiled versions for ARM and Intel (with x265...forums.macrumors.com
Some tests we did on the Apple Transition kit with Apple Silicone.
Encoding the free animation movie bbb_sunflower_1080p_30fps to a MP4 format with HEVC and AAC with a video bitrate of 6000k and audio bitrate of 256k
Encoding with FFmpeg 4.3.1 compiled versions for ARM and Intel (with x265 library)
Both system running Mac Big Sur Beta 5
Software encoding for video and audio:
Intel Core i9 2.3Ghz 8core 5:09
Intel Core i3 2.8Ghz. 23:18
Apple Silicone A12Z 36:43
Hardware encoding with Apple Videotoolbox (*) for video and audio:
Intel Core i9 2:58
Apple Silicone A12Z 10:51
Intel Core i3 N/A (does not have HEVC hardware accelerated encoding)
Although the Apple transition kit is not using the most powerful ARM atm it does clearly indicate they are much slower in doing hard crunching numbers. With the A14 it may be a bit closer to Intel Core i3
The hardware accelerated encoding was much slower too (which was a surprise).
Basically a Core i5, i7 and i9 will be much faster for the foreseeable future.
A side note: the Apple kit got incredible warm and it may have did some throttling along the test.
The x265 library is currently lacking ARM SIMD optimizations. So you better use the X264 library, which is relatively good optimized for ARM64 or wait until X265 is also optimized - it is currently being worked on.