![]() ![]() How to Enable or Disable a Laptop MUX Switch? I’ve added the details at the end of this article so make sure you read that section if you want to get the best possible performance from your gaming laptop without a MUX Switch. It’s not some plug-and-play device.Īlso, you can’t emulate a MUX Switch with software, so don’t bother searching for an alternate solution. A MUX Switch is a hardware chip glued to the laptop’s motherboard. If you’re asking if “ Can you install a MUX Switch?” the answer is simply no. Here’s how it looks on an ASUS laptop in Armoury Crate and on a Lenovo Legion in the Lenovo Vantage app.Ī lot of recent gaming laptops come with a MUX switch, but don’t assume your laptop has one. Unless it’s listed on the product page, or there’s a sticker on your laptop, the only way to tell if your specific model has a MUX switch is to look into the companion app and find something that’s called hybrid graphics, GPU mode, or similar.Īctual naming varies from manufacturer to manufacturer. ![]() How Do I Know if My Laptop Has a MUX switch? With the MUX chip turned on, frames are sent directly to the laptop screen, with no delay. What is a MUX Switch?Ī MUX Switch (multiplexer) is a chip that can route video signals to either the discrete GPU (dGPU) or the integrated GPU (iGPU) in a laptop, depending on user preference.Ī MUX Switch, when active, will bypass the integrated graphics chip completely, offering the best performance in games and 3D workloads. Other bottlenecks come into play when you increase resolution and the level of detail in games.įortunately, there’s a fix, and it’s called a MUX Switch. The difference can vary from a few percentages to 40-50% in extreme scenarios, usually in high framerate eSport titles such as CounterStrike Go, Rainbox Six Siege, and the like.Īt higher resolutions, it’s not really a problem, even if the performance drop can still be measured. The iGPU has problems processing the frames it receives from the dGPU before showing them on screen, degrading performance overall. Why? Because the laptop display is always connected to the integrated GPU, even when using the dGPU. Weirdly, automatic GPU switching also causes a significant performance drop at lower resolutions and high framerates. The Problem: Laptops with Two GPUs Get Lower Performance in Games It works wonders for battery life and performance, two things you most definitely want from your precious laptop. It solves the pain of having to reboot when you wanted to use the other GPU. Thanks to NVIDIA Optimus, AMD Dynamic Switchable Graphics, or MSHybrid (Microsoft Hybrid Graphics) technologies laptops now switch automatically between the two graphics cards when needed. NVIDIA Optimus: Better Laptop Battery Life at the Expense of Performance 10 Laptop with no MUX Switch? Just Use an External Monitor.9 Advanced Optimus: an Automatic MUX Switch.8 When the MUX Switch is Turned On New Features are Unlocked.7 How Much Does a MUX Switch Affect Battery Life.6 What Performance Difference You Can Expect with a MUX Switch Enabled.5 How to Enable or Disable a Laptop MUX Switch?.4 How Do I Know if My Laptop Has a MUX switch?.2 The Problem: Laptops with Two GPUs Get Lower Performance in Games.1 NVIDIA Optimus: Better Laptop Battery Life at the Expense of Performance. ![]()
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