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.
Apple's next-generation iPhone 17 Pro and iPhone 17 Pro Max are less than three months away, and there are plenty of rumors about the devices.
Apple is expected to launch the iPhone 17, iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max in September this year.
Below, we recap key changes rumored for the iPhone 17 Pro models:Aluminum frame: iPhone 17 Pro models are rumored to have an...
Apple is developing a MacBook with the A18 Pro chip, according to findings in backend code uncovered by MacRumors.
Earlier today, Apple analyst Ming-Chi Kuo reported that Apple is planning to launch a low-cost MacBook powered by an iPhone chip. The machine is expected to feature a 13-inch display, the A18 Pro chip, and color options that include silver, blue, pink, and yellow.
MacRumors...
The upcoming iPhone 17 Pro and iPhone 17 Pro Max are rumored to have a slightly different MagSafe magnet layout compared to existing iPhone models, and a leaked photo has offered a closer look at the supposed new design.
The leaker Majin Bu today shared a photo of alleged MagSafe magnet arrays for third-party iPhone 17 Pro cases. On existing iPhone models with MagSafe, the magnets form a...
The long wait for an Apple Watch Ultra 3 appears to be nearly over, and it is rumored to feature both satellite connectivity and 5G support.
Apple Watch Ultra's existing Night Mode
In his latest Power On newsletter, Bloomberg's Mark Gurman said that the Apple Watch Ultra 3 is on track to launch this year with "significant" new features, including satellite connectivity, which would let you...
Apple is planning to launch a low-cost MacBook powered by an iPhone chip, according to Apple analyst Ming-Chi Kuo.
In an article published on X, Kuo explained that the device will feature a 13-inch display and the A18 Pro chip, making it the first Mac powered by an iPhone chip. The A18 Pro chip debuted in the iPhone 16 Pro last year. To date, all Apple silicon Macs have contained M-series...
Apple today seeded the second betas of upcoming iOS 18.6 and iPadOS 18.6 updates to public beta testers, with the betas coming just a day after Apple provided the betas to developers. Apple has also released a second beta of macOS Sequoia 15.6.
Testers who have signed up for beta updates through Apple's beta site can download iOS 18.6 and iPadOS 18.6 from the Settings app on a compatible...
iOS 26 and iPadOS 26 add a smaller yet useful Wi-Fi feature to iPhones and iPads.
As spotted by Creative Strategies analyst Max Weinbach, sign-in details for captive Wi-Fi networks are now synced across iPhones and iPads running iOS 26 and iPadOS 26. For example, while Weinbach was staying at a Hilton hotel, his iPhone prompted him to fill in Wi-Fi details from his iPad that was already...
Apple hasn't updated the AirPods Pro since 2022, and the earbuds are due for a refresh. We're counting on a new model this year, and we've seen several hints of new AirPods tucked away in Apple's code. Rumors suggest that Apple has some exciting new features planned that will make it worthwhile to upgrade to the latest model.
Subscribe to the MacRumors YouTube channel for more videos.
Heal...
As part of its 10-year celebrations of Apple Music, Apple today released an all-new personalized playlist that collates your entire listening history.
The playlist, called "Replay All Time," expands on Apple Music's existing Replay features. Previously, users could only see their top songs for each individual calendar year that they've been subscribed to Apple Music, but now, Replay All...
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... :)
Biggest design overhaul since iOS 7 with Liquid Glass, plus new Apple Intelligence features and improvements to Messages, Phone, Safari, Shortcuts, and more. Developer beta available now ahead of public beta in July.