Update: Apple identified on Tuesday that the overheating issue was caused by a bug, and the company is rolling out an update to new MacBook Pros that should fix the issue.



One YouTuber found he had to put his new 2018 MacBook Pro in a freezer to make it work at its full potential.

The MacBook Pro he was using is the brand-new 2018 model with the powerful Intel Core i9 processor.

If the Core i9 gets too hot, it starts to reduce its performance to prevent heat damage.

The issue here is that Apple's new MacBook Pros can't keep the Core i9 cool enough to perform at even its standard, base performance.

Dave Lee of the Dave2D YouTube channel found that the only way he could get the most out of this brand-new 2018 MacBook Pro with a powerful Intel Core i9 processor was to put it in a freezer.

Because of its power, the Core i9 can get extremely hot. When it gets too hot, the processor slows its performance to prevent heat damage to the chip. It's a preventative measure called "thermal throttling."

On its own, outside the freezer on a desk, the 2018 MacBook Pro with a Core i9 processor couldn't even achieve its base, standard performance because the cooling system inside the laptop can't keep the Core i9 cool enough. It even performed worse than the 2017 MacBook Pro with a less powerful Core i7 chip, the video shows.

Some who bought the 2018 MacBook Pro with a Core i9 processor say they're canceling their orders, returning the laptop, or at least thinking about doing that because of the issue.

Check out Lee's video about the 2018 MacBook Pro with a Core i9 and the huge difference before and after he put the laptop in the freezer: