The new 2018 MacBook Pro might be fast, but all that Core i9 processor power is useless if the system can't cope with the heat it generates and has to throttle the performance.
Owners of the new 15-inch 2018 MacBook Pro are reporting poor performance because heat is causing the system to throttle CPU speed.
A Redditor going by the name of Are found that after only a few minutes of running Prime 95 -- a prime number calculator that's popularly used for benchmarking and stress-testing systems -- the new MacBook Pro equipped with an Intel Core i9 chip had throttled down from the base clock speed of 2.9GHz to 800MHz as the processor cut performance so as to generate less heat.
Testing was also carried out using Cinebench R15, and this too showed significant performance throttling after only a few minutes of running.
Think this is a random result based on a single system and put it down to faulty hardware? Think again. Another proud owner of a Core i9-equipped 15-inch 2018 MacBook Pro Dave Lee posted a video on YouTube that showed similar levels of throttling.
Lee carried out a rendering test using Adobe Premiere, pitting the Core i9 2018 MacBook Pro against an Aero 15X laptop powered by a Core i7 chip and a MacBook Pro he purchased last year with a Core i7 chip.
The 2018 MacBook Pro took 40 minutes to render the video, while the older Core i7 MacBook took only 35 minutes.
The Windows-powered Aero 15X rendered the video in a little over 7 minutes.
Lee also put the 2018 MacBook Pro in the freezer to run the same render, and with the additional cooling found that it could complete the task in 27 minutes.
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