What Is a Gaming Laptop MUX Switch & Do You Need One?

What Is a Gaming Laptop MUX Switch & Do You Need One?

Gaming laptops present a superb center floor between a PC’s uncooked processing energy and a smartphone’s handy portability. Outfitted with a devoted graphics card, beefy cooling followers, and a excessive refresh fee monitor, gaming laptops are nice performers on the expense of poor battery life.

As an answer, producers developed battery optimization instruments equivalent to NVIDIA Optimus and AMD Switchable Graphics to robotically decrease or enhance efficiency based mostly on how resource-intensive a process is.

This labored for some time, however with gaming calls for frequently rising, NVIDIA Optimus and AMD Switchable Graphics are now not sufficient. Thus, the MUX Change was born!

What Is a Gaming Laptop computer MUX Change?

Inside a gaming laptop computer are two graphics processing items: the built-in graphics coming from the CPU and the devoted graphics card. A devoted graphics card is the quicker graphics processor and may at all times be used each time your laptop computer is doing one thing graphically intensive, equivalent to gaming.

A MUX swap (multiplexer swap) is a swap on a gaming laptop computer that gives customers with higher graphical efficiency by straight connecting the devoted graphics card to the show. To activate the MUX swap, customers might want to use the software program offered by the producer. Though activated via software program, MUX swap performance operates on a bodily stage the place information is bodily routed on to the show monitor.


Wait, if the devoted graphics card offers higher efficiency than built-in graphics, why not join it on to the monitor by default? Why don’t producer’s simply do away with built-in graphics to economize and supply higher efficiency?

To know the reasoning behind such peculiar manufacturing, one should first perceive the worth of the 2 graphics processors and why they’re each vital to a gaming laptop computer.

Why Built-in Graphics Is Essential in a Gaming Laptop computer


As acknowledged earlier, there are two sorts of graphics processors inside a gaming laptop computer. They’re the built-in graphics processing unit (iGPU) and the devoted graphics processing unit (dGPU).

An iGPU is a graphics processor discreetly offered contained in the CPU. Though usually not nice in efficiency, the iGPU can often course of widespread duties equivalent to media consumption, looking the web, light-weight modifying, programming, writing a doc, and modifying a spreadsheet.

Now, though a dGPU offers quicker efficiency than an iGPU, it additionally consumes extra energy, which isn’t best in case your machine is working on a battery pack.

An iGPU, then again, consumes much less vitality than a dGPU, offering higher battery life, albeit with slower efficiency.

Gaming laptops are infamous for having poor battery life per cost. They’d often final not more than three hours when working on battery. To assist prolong battery run time, laptop computer producers discovered methods to modify between the 2 graphics processors based mostly on how graphically intense a process is projected to be.

Associated: Built-in vs. Devoted Graphics Card: Issues You Must Know

NVIDIA Optimus and NVIDIA Superior Optimus


Switching between two graphics processing items is a good concept to save lots of energy. Nevertheless, it may be annoying to maintain visiting the management panel everytime you swap GPUs. With this in thoughts, NVIDIA launched NVIDIA Optimus, a GPU expertise that robotically toggles between the iGPU and dGPU with out the person needing to go to the settings menu.

Though NVIDIA Optimus works properly, there are a number of situations the place customers need to flip it off. The issue is that turning Optimus on and off requires a reboot every time you need to swap.

NVIDIA Superior Optimus solves this drawback by permitting customers to show Superior Optimus on or off while not having a reboot. Superior Optimus additionally works with G-Sync appropriate laptops, in contrast to the unique Optimus.

So, why would you want a MUX swap if NVIDIA Superior Optimus is already doing an excellent job at switching graphics processors?

Associated: Methods to Enhance Devoted Video RAM (VRAM) in Home windows 10

How a Gaming Laptop computer MUX Change Will increase Efficiency

Though Superior Optimus has actually labored properly, cellular graphics expertise has superior in such a means that having Superior Optimus alone can really bottleneck your gaming laptop computer.

For the Optimus expertise to work, your laptop computer must be manufactured in order that your dGPU first connects to your iGPU earlier than information reaches the show monitor.

Having your dGPU connect with the iGPU labored high-quality till dGPU bandwidth speeds elevated previous a sure level, inflicting efficiency bottlenecks to extend in tow. Channeling your quicker dGPU via your slower iGPU can severely decrease efficiency, relying on the use case.


A gaming laptop computer MUX swap solves the issue by bodily connecting your dGPU on to the laptop computer show, offering quicker graphics efficiency and decrease latency. With a quicker GPU and a CPU with much less load to course of, turning on a MUX swap can drastically enhance FPS on CPU intensives video games equivalent to CS:GO and Valorant.

Can You Set up a MUX Change After Shopping for a Gaming Laptop computer?

Sadly, a MUX swap is a bodily add-on straight soldered to the motherboard’s PCB. No software program can replicate such a perform, and there’s no actual method to set up a mux swap on gadgets that don’t include one.

A gaming MUX swap is a wonderful resolution to the more and more quicker cellular GPUs fitted on gaming laptops. Anticipate to see mid to high-end gaming laptops outfitted with MUX switched because the norm within the upcoming new releases from fashionable manufacturers. So, in the event you can afford to shell out some hefty pennies for a brand new machine, discovering a gaming laptop computer with a MUX swap needs to be in your guidelines.

Do You Want a Gaming Laptop computer MUX Change?

A MUX swap on a gaming laptop computer is actually a plus. If you happen to at all times use your laptop computer related to the mains energy provide, having your MUX swap join your dGPU to your show by default will permit you to squeeze each final efficiency out of your dGPU.

If you happen to’re out there for a gaming laptop computer, it’s best to actually search for a gaming laptop computer with a MUX swap outfitted. It doesn’t value way more than ones that don’t. Plus, it permits you to take pleasure in your dGPU with out your iGPU bottlenecking the system.

Nevertheless, in the event you lately purchased a gaming laptop computer and are closely reliant in your laptop computer’s battery, then a gaming laptop computer with a MUX swap is probably going not definitely worth the value of a brand-new laptop computer.

Glass case with NVIDIA graphics card
Methods to Make Video games Use Your Devoted Graphics Card

Obtained a devoted graphics card however your laptop computer retains utilizing the built-in one to your video games? Here is the best way to repair that.

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