Apple has acknowledged the performance throttling issues in the new MacBook Pro revealing that a software bug was behind the slowdown of the machines when they reached high temperatures.
This comes after almost a week of reporting and talking on various forums on the web about the CPU throttling issue. It was first brought to light by YouTuber Dave Lee whose video showed the new MacBook Pro with 8th Gen Intel chip become so hot that its clock speed dropped below the base clock.
That came as a surprise for the users who had spent close to 2,800 dollars on their new MacBook Pro after Apple promised around 70% performance improvement. However, the issue is known to be visible when the CPU has to handle long, resource-intensive workloads. For instance, during 4k video encoding.
The bug affects all of the new MacBook Pro line-ups including both 13-inch and 15-inch models. Apple has included the software fix in MacOS High Sierra 10.13.6 Supplemental Update (download link).
In a statement, Apple apologized to the affected users and said it found the “missing digital key” in the firmware that messes with the thermal management system and could throttle the new MacBook Pro under heavy thermal loads.
Now that the update is live, new benchmarks should be coming as we speak with more promising results than earlier.