Only we reported that developers started to get their Developer Transition Kit Mac Mini with Apple’s A12Z, as in the network appeared the first test results of the systems based on these chips. Recall that Apple has decided to abandon Intel and smoothly within two years to switch to using only its 64-bit ARM processors.
The information contained in the database Geekbench 5 the results of synthetic tests of the developer kit in a compact nettop Mac mini based on Apple A12Z and running the beta version of the new operating system macOS 11 Big Sur shared a Twitter user Pierre Dandurand (Pierre Dandumont). To conducting the tests, designed for x86 processors, the benchmark was run in the Rosetta emulator 2. It is embedded in the operating system Big Sur and allows you to run on systems based on ARM old app, designed to run on Intel processors. It translates instructions written for Intel team-friendly ARM-based chips. That is why Geekbench and had to run through an emulator.
The results indicate that the performance of Apple A12Z in a single-threaded test is from 700 to 800 points, and in multi-threaded test, the CPU gains from 2582 to 2962 points. Interestingly, the Geekbench results 5 indicate the use of a Quad-core processor, but we know that A12Z Bionic built on the basis of four big and four little cores. Perhaps synthetic test couldn’t determine the correct number of cores of the chip, maybe for the test system with only four active cores. To answer this question is impossible.
For comparison, the 13-inch model MacBook air processor-Intel Core i5-1038NG7 under the operating system macOS 10.15 gains in single-threaded test and about 1200 points, and in multi – threaded about 4400 points. But to use Geekbench in this case, no need to resort to using the emulator. Mac mini late 2018 gains in the same test in a single-threaded test 1015 points, and in a multithreaded – 5275 points. Again, no emulator.
Of course, I would direct comparisons with roughly the same potential of systems based on Windows. However, the Surface Pro X for ARM-based Windows 10 can emulate only 32-bit version of Geekbench. In General, it is difficult to assess how native applications on macOS will work processor-based Apple. Though, because the final version of the chip that will be present in the new Mac computers, the company hasn’t revealed.
It should be added that before the developers who participated in the program of transition to the new processors Apple had put a condition not to take pictures and videos, not to make any sketches, or graphs of measurements and not to test the performance of the system Developer Transition Kit, and does not demonstrate the results without official written permission from Apple. In General, due to the above leak, someone seems to have found adventure on his head.