What is apple turbo boost

What is Turbo Boost on Mac?

Turbo Boost is a feature available on high end intel processors. When a mac is running tasks that are high on processor demand it can boost frequencies to greater levels which results in better performance. However this can cause the CPU to thermally throttle because of accumulated heat, and quick battery drainage. To counteract these disadvantages Turbo Boost can manage between different levels of frequencies and core counts depending on the tasks at hand. All of this is done automatically without the users input. Mac OS 10.15.5 takes full advantage of these functions.

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Turbo Boost Explained

For several years now, since 2008 to be precise, Apple has been producing Mac computers with a remarkable feature called Turbo Boost. This is a trademark Intel technology that serves the purpose of increasing a computer’s performance and it may also reduce its power usage. This happens as a result of the processor’s ability to shut off those of its cores that are currently not in use. In turn, this increases the so-called clock speed of the cores that are still in operation, i.e. they start working faster. Turbo boost can be found in all Apple lineup products.

Depending on the configurations of the specific computer model, the Turbo Boost will be set to increase the clock speed to different amounts, in respect to the number of cores in operation. And the way to determine how much extra power you will get for the amount of used cores is by looking at the Turbo Ratio.

Each digit in the Turbo Ratio represents a number of cores, descending from left to right. So, for example, if the Turbo Ratio number is set to 6589, 6 represents the increase when there are 4 cores in operation, 5 – when 3 cores are working, 8 – for 2 cores, and 9 is for when there’s only 1 core in use.

And the numbers themselves represent increments of 100 MHz by which the power is boosted. Hence, in the above example of a Turbo Ratio of 6589, the clock speed can be increased by a maximum of up to 900 MHz. So If you have a Mac has a clock speed of 1.6 GHz, it may be boosted to a total of up to 1.6 GHz + 900 MHz = 2.5 GHz.

You can check the Turbo Ratio that your system is set to on your computer. And to do this, you will need to head over to Console, after which you will need to open kernel.log (or in case you are using Mountain Lion, that will be system.log). Look up AppleIntelCPUPowerManagement and then find Turbo Ratios to determine yours.

One thing to keep in mind is that, naturally, these clock speed increases are limited by a number of factors. Some of these are thermal and power limits, and if any of these are exceeded, the operating frequency will immediately begin to subside

Mac models with Turbo Boost 2020

MacBook Air Retina

· 1.1GHz dual-core 10th-generation Intel Core i3 processor,
Turbo Boost up to 3.2GHz
CPU Performance Score 5255

· 1.1GHz quad-core 10th-generation Intel Core i5 processor,
Turbo Boost up to 3.5GHz
CPU Performance Score 8206

· 1.2GHz quad-core 10th-generation Intel Core i7 processor,
Turbo Boost up to 3.8GHz
CPU Performance Score (no data)

· Macbook Air Turbo Boost range (3.2GHz – 3.8GHz)

MacBook Pro 13-in.
(two Thunderbolt 3 ports)

· 1.4GHz quad‑core 8th‑generation Intel Core i5 processor,
Turbo Boost up to 3.9GHz
CPU Performance Score 8182

· 1.7GHz quad‑core 8th‑generation Intel Core i7 processor,
Turbo Boost up to 4.5GHz –
CPU Performance Score (no useful data)

· Macbook Pro Turbo Boost range (3.9GHz to 4.5GHz)

MacBook Pro 13-in.
(four Thunderbolt 3 ports)

· 2.0GHz quad-core 10th-generation Intel Core i5 processor,
Turbo Boost up to 3.8GHz
CPU Performance Score 9907

· 2.3GHz quad-core 10th-generation Intel Core i7 processor,
Turbo Boost up to 4.1GHz
CPU Performance Score (No data)

· MacBook Pro Turbo Boost range (3.8 GHz – 4.1GHz)

MacBook Pro 16-in.

· 2.6GHz 6-core Intel Core i7

· 2.3GHz 8-core Intel Core i9

· 2.4GHz 8-core Intel Core i9

· Turbo Boost up to 5.0GHz

iMac 21.5-in.

· 2.3GHz dual-core Intel Core i5

· Turbo Boost up to 3.6GHz

iMac 21.5-in. (Retina 4K)

· 3.6GHz quad-core Intel Core i3

· 3.0GHz 6-core Intel Core i5

· 3.2GHz 6-core Intel Core i7

· Turbo Boost up to 4.6GHz

iMac 27-in. (Retina 5K)

· 3.0GHz 6-core Intel Core i5

· 3.1GHz 6-core Intel Core i5

· 3.7GHz 6-core Intel Core i5

· 3.6GHz 8-core Intel Core i9

· Turbo Boost up to 5.0GHz

iMac Pro

· 3.2GHz 8-core Intel Xeon W

· 3.0GHz 10-core Intel Xeon W

· 2.5GHz 14-core Intel Xeon W

· 2.3GHz 18-core Intel Xeon W

· Turbo Boost up to 4.5GHz

Mac mini

· 3.6GHz quad-core Intel Core i3

· 3.0GHz 6-core Intel Core i5

· 3.2GHz 6-core Intel Core i7

· Turbo Boost up to 4.6GHz

Mac Pro

· 3.5GHz 8-core Intel Xeon W

· 3.3GHz 12-core Intel Xeon W

· 3.2GHz 16-core Intel Xeon W

· 2.7GHz 24-core Intel Xeon W

· 2.5GHz 28-core Intel Xeon W

· Turbo Boost up to 4.4GHz

Intel Processors on Mac Availability

There are several processors that possess the Turbo Boost feature and they are as follows: Core M, Core i3, Core i5, Core i7, Core i9 and Xeon. Obviously, it’s a bit of a selection – so how do you know which one is right for you? We will break it down for you, so you are aware of the main differences. You can check our list of all Mac models with there CPU’s and pricing list.

Core M.

The Core M was the first-ever Intel chip for laptops that didn’t require a fan for cooling. It has been present in the Mac Retina laptops since the model’s initial release in 2014, and it is largely responsible for the Retina’s sleek design and extremely light weight of just 900g. Its power efficiency also resulted in a 9-hour battery life a fairly good processing speed. However, the Core M is no longer used by Apple today.

Core i3

The Macs that come with Core i3 processors do not offer Turbo Boost. Therefore, the speed listed by the manufacturer is the speed you get. No over-clocking.

Core i5.

This is the processor you will find in the overwhelming majority of Macs. The very first i5 processor was present in the entry-level iMac and it had a dual-core. These days, however, the i5 is either quad-core or 6-core.

Core i7

The i7 processors was no longer used in modern day Macs up until the year 2020. The new 13 inch mac book pro is equipped with the latest 10th generation model. Namely, the Core i7 boasted features like Hyper Threading and larger cache. And both of these features made for better multitasking and were good for scientific work, as well as high-end gaming.

Core i9

If we compare it to the rest of the processors in this list, the Core i9 is the fancy sports car of the lot. It is very fast and can come with up to 8-cores. The Core i9 first appeared in the 9th generation Coffee Lake refresh and has been the latest craze ever since. However, such high speeds come at a cost, and the cost in this particular case is the shorter battery life.

Xeon

Xeon processors are the heavy artillery of processors in this list. They support more memory than any of the others here, with a good example of this being the 2019 Mac Pro that can come with up to a whopping 1.5TB RAM. These are workstation and server processors and they offer significantly more cores. In fact, Mac Pro models can have up to 28-cores.

Can I control Turbo Boost on my Mac?

It is possible to control the Turbo Boost settings of your Mac and there are several reasons why you may want to or even need to do this. For instance, some of the latest Macs do tend to heat up rather quickly. So you may want to disable Turbo Boost to prevent overheating. Another reason you may want to switch off this feature is to decrease power consumption and thus prolong the battery life.

There is an app available that will allow you to disable the Turbo Boost on your computer. It’s called Turbo Boost Switcher, and the free version will give you the option to disable the feature manually. And there’s also the paid version, which will set you back $10, but comes with a whole range of different extras. For one, unlike in the free version, you won’t have to type in your password every time in order to switch off Turbo Boost. And for another, you will also have the chance to set the switcher to start automatically.

Of course, while switching Turbo Boost off will provide you with a longer battery life and a cooler machine, it will certainly take its toll on your Mac’s processing speed. Whether or not the sacrifice is worth it will depend on what you use your computer for, and, of course, your personal preferences.

If you generally don’t tend to use your computer for more processor-intensive tasks, then you won’t really suffer that much from the decreased CPU.

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How to Disable Turbo Boost to Prevent Mac from Heating

While MacBooks are well known for beastly power and snappier performance, they are not perfect in every aspect. Just like any notebook, they also tend to overheat after tackling heavy files or driving hardcore games. So, what’s the right way to prevent a MacBook from overheating? Well, the one reliable hack that I have been using for years is to disable Turbo Boost to keep my MacBook cool even after hours of heavy usage. In this in-depth guide, I’m going to talk about what Turbo Boost is and how you can disable turbo boost to prevent your mac from heating.

Disable Turbo Boost to Prevent Heating on Mac

As always it’s better to take a close look at the downsides first up to decide whether the trade-off is worth, isn’t it?

What’s Turbo Boost and is There Any Downside of Turning It off?

Macs come with Intel processors which are equipped with chipmaker’s popular Turbo Boost technology. What this feature basically does is that it enables the processor to temporarily speed up its standard clock rate to boost the performance of the Mac so that it can tackle workloads without any sluggishness. From a productivity perspective, it’s a boon for pros. However, the accelerated performance comes at a cost of increased energy usage, resulting in the Mac running hotter. Moreover, it also drains the MacBook’s battery. That’s the reason why some Mac users may want to turn off Turbo Boost.

Unfortunately, Apple doesn’t offer a native way to control Turbo Boost on macOS. Maybe because the tech giant thinks that Macs are more than efficient to handle heavy workloads. To some extent, the company is right but it would be wise to provide a way to turn it off. Nevertheless, there is no need to lose sleep as there is a super handy software called Turbo Boost Switcher that gets the job done. Besides, the app is also available for free; allowing you to enable/disable Turbo Boost on Mac without needing to pay anything. But, do note that the freemium model of the software is basic with some limitations. And if you want to unlock all the goodies, you will need to shell out $9.95 for the pro version (more on this later).

Besides, there is one more thing worth reiterating upfront. Disabling Turbo Boost can impact your productivity as your Mac won’t be able to tackle your workloads with the same flair. Whether the dip in performance is fine in favor of having better control over the overheating issue of the Mac is the tradeoff that you have to choose. That all being said, let’s get started with the guide!

Steps to Turn off Turbo Boost on Your Mac

1. To get going, download Turbo Boost Switcher on your Mac.

Note: In this test, I’m going to try out the free version of the software. It’s compatible with OS X Snow Leopard (version 10.6) or later. Needless to mention, it also works perfectly on macOS Catalina.

2. After you have downloaded the application, unzip it. Now, drag the software to the Applications folder on your Mac and then double-click on the app.

3. You may see a message saying, “Turbo Boost Switcher is an app downloaded from the internet. Are you sure you want to open it?” Click on Open to continue.

Note: If you see a popup saying Turbo Boost Switcher can’t be opened because it is from an unidentified developer, head over to System Preferences > Security and Privacy. And then, check the box next to Anywhere.

4. Now, a tiny icon will appear in the status bar. Simply click on the icon and click on Disable Turbo Boost on the menu.

Note: Do note that you will need to allow the app to use kernel extension for the first time you try to turn off Turbo Boost on your macOS device. To do so, open System Preferences > Security and Privacy. Then, click on Allow to proceed.

5. Next, enter the password and click on OK to allow the app to make changes on your computer. In macOS Mojave and Catalina, you may need to reboot your Mac. Do it and you are good to go.

Going forward, your Mac won’t overheat. Moreover, you can also see a noticeable increase in the battery life of your MacBook.

If you ever feel the need to amp up the performance of your macOS device, click on the app icon in the status bar and select “Enable Turbo Boost”. Then, enter the password and click on OK to confirm.

Go for Turbo Boost Switcher Pro for More Control

While the freemium version of the Turbo Boost Switcher works reliably, it requires your username password every single time you go to disable the Turbo Boost on your Mac, which does feel a bit inconvenient. Inconvenience aside, it also doesn’t offer any flexibility to allow selected apps to use CPU power. If you want to have this flexibility, the pro version of the app would be the better option. What’s more, you can ideally fine-tune the software to suit your needs better.

For instance, you can choose to turn off Turbo Boost only when on battery power or allow it for some powerful apps like audio editing and video editing apps. Just in case, certain apps demand full CPU power to tackle heavy workloads, you have the option to keep Turbo Boost enabled for them so that your workflow won’t be affected.

Prevent Your Mac from Overheating by Turning off Turbo Boost

So, that’s the right way to take control of the Turbo Boost feature on macOS. Considering how essential this feature is, it would be better if Apple offered an official way to disable it. Until that happens, use this app to get your work done. What’s your take on this software? Feel free to share your thoughts with us.

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