Following rumors of a performance-boosting "Pro Mode" coming in the next update to macOS Catalina, developer Marco Arment has argued that Apple should bring an iPhone-style Low Power Mode to MacBooks as well.
Since iOS 9, Apple has included a Low Power Mode on iPhones that reduces the amount of power that the device uses when the battery gets low, and Arment this week shared his experience with his own self-styled equivalent for macOS.
His method involves the use of a third-party app called Turbo Boost Switcher Pro that enables users to disable Intel Turbo Boost on a Mac's processor. According to Arment, disabling Turbo Boost has increased his 16-inch MacBook Pro's battery life by an estimated 30-50 percent and made it "a much better laptop" the vast majority of the time he uses it.
With Turbo Boost disabled, peak CPU power consumption drops by 62%, with a correspondingly huge reduction in temperature. This has two massive benefits:
The fans never audibly spin up. When Turbo Boost is enabled, the fans annoyingly spin up every time the system is under a heavy sustained load. Disable it, and it’s almost impossible to get them to be audible.
It runs significantly cooler. Turbo Boost lets laptops get too hot to comfortably hold in your lap, and so much heat radiates out that it can make hands sweaty. Disable it, and the laptop only gets moderately warm, not hot, and hands stay comfortably dry.
Arment claims that despite the reduction in processing power, his MacBook Pro is "still fast enough to do everything I need (including significant development with Xcode)." His only concern is that the app which allows him to enjoy these benefits is on borrowed time: Turbo Boost Switcher Pro relies on a legacy kernel extension that likely won't be supported in future versions of macOS.
"I suspect that this is the last year I'll get to run the latest OS and be able to turn off Turbo Boost at will, making all of my future laptop usage significantly worse," says Arment.
An iPhone's Low Power Mode reduces battery usage by disabling background app refreshing and automatic downloads, locking the screen after 30 seconds, and via other methods. Would you be happy to see an optional Low Power Mode in a future version of macOS, too? Let us know in the comments.
Thursday November 13, 2025 11:35 am PST by Juli Clover
Apple today released new firmware designed for the AirPods Pro 3, the AirPods 4, and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B25, while the AirPods Pro 2 and AirPods 4 firmware is 8B21, all up from the prior 8A358 firmware released in October.
There's no word on what's include in the updated firmware, but the AirPods Pro 2, AirPods 4 with ANC, and AirPods Pro 3...
Saturday November 15, 2025 2:40 pm PST by Joe Rossignol
Apple is preparing for Tim Cook to step down as CEO of the company "as soon as next year," according to the Financial Times.
The company's board of directors and senior executives "recently intensified preparations for Cook to hand over the reins," the report said.
While the report said that Apple is unlikely to name a new CEO before its next earnings report in late January, it went on to ...
Friday November 14, 2025 6:20 am PST by Joe Rossignol
Apple recently teamed up with Japanese fashion brand ISSEY MIYAKE to create the iPhone Pocket, a limited-edition knitted accessory designed to carry an iPhone.
iPhone Pocket is available to order on Apple's online store starting today, in the United States, France, China, Italy, Japan, Singapore, South Korea, and the United Kingdom. However, it is already completely sold out in the United...
Friday November 14, 2025 3:23 pm PST by Juli Clover
Most of Apple's Macs are slated to get M5 chips across 2026, and there's a possibility we'll even see the first M6 chips toward the end of the year. Updates are planned for everything from the MacBook Air to the Mac Studio.
MacBook Air (Early 2026)
The MacBook Air will be one of the first Macs to get a 2026 refresh, with an update planned for the first few months of the year. The MacBook...
We're officially in the month of Black Friday, which will take place on Friday, November 28 in 2025. As always, this will be the best time of the year to shop for great deals, including popular Apple products like AirPods, iPad, Apple Watch, and more. In this article, the majority of the discounts will be found on Amazon.
Note: MacRumors is an affiliate partner with some of these vendors. When ...
Friday November 14, 2025 10:02 am PST by Joe Rossignol
Starting with the upcoming tvOS 26.2 update, currently in beta, additional profiles created on the Apple TV no longer require their own Apple Account.
In the Settings app on the Apple TV, under Profiles and Accounts, anyone can create a new profile by simply entering a name and indicating whether the profile is for a kid. The profile will be associated with the primary user's Apple Account,...
Walmart's Black Friday sale has officially kicked off today, with an online shopping event that's also seeing some matching deals in retail locations. There are quite a few major discounts in this sale, including savings on headphones, TVs, and more.
Note: MacRumors is an affiliate partner with Walmart. When you click a link and make a purchase, we may receive a small payment, which helps us...
Thursday November 13, 2025 6:48 am PST by Joe Rossignol
iOS 26 extended pinned conversations in the Messages app to CarPlay, for quick access to your most frequent chats. However, some drivers may prefer the classic view with a list of individual conversations only, and Apple now lets users choose.
Apple released the second beta of iOS 26.2 this week, and it introduces a new CarPlay setting for turning off pinned conversations in the Messages...
Monday November 17, 2025 3:20 pm PST by Juli Clover
Apple provided developers with the third beta of an upcoming iOS 26.2 update, and there are still new features that are being added with each beta that we get. We've rounded up all of the changes that Apple made in beta 3.
AirDrop
Apple added new AirDrop functionality, providing a way for two people to share files temporarily without having to add one another as contacts.
iOS 26.2...
The reason I’ve been a Mac user rather than a Windows user for the past 20 years was because a Mac historically “just worked.” They were computers to do work on.
I want my computer to intelligently adapt itself to what I’m doing. I want it to manage its own updates. I just don’t want it to bother me and I don’t want to have to spend any time configuring or maintaining it.
The reason I’ve been a Mac user rather than a Windows user for the past 20 years was because a Mac historically “just worked.” They were computers to do work on.
I want my computer to intelligently adapt itself to what I’m doing. I want it to manage its own updates. I just don’t want it to bother me and I don’t want to have to spend any time configuring or maintaining it.
You won't have to change this, but others may want to
It wouldn't need a low power mode if the MBP able to offer an all-week battery life.
Battery life isn't the only benefit, mainly heat and fan noise, which can really improve the experience of using the machine.
Most workflows don't even need a powerful processor so there is usually a lot of potential energy, heat and noise that can be avoided without the user noticing any difference in performance.
Low power mode would be an excellent option on the Mac. I use it - not often, but occasionally - on my iPhone, and those times it's very useful to stretch the power whenever I'm away from any power outlets... :)
