Most gaming laptops do not have just one graphics chip – they have two. An integrated GPU built into the processor (Intel Iris Xe or AMD's integrated graphics) handles everyday tasks to save battery, while a separate dedicated GPU (Nvidia or AMD) kicks in for demanding work. This is called hybrid graphics, or Optimus on Nvidia laptops, and when it is not configured correctly, games can quietly run on the weaker integrated chip without you realising why performance is poor.
Key takeaway: if a laptop game is running poorly, always check which GPU it is actually using before touching any other setting – a wrongly assigned game running on integrated graphics can look like a hardware limitation when it is really a one-click fix.
How hybrid graphics decides which GPU to use
By default, Windows and your GPU driver try to guess whether an application needs the dedicated GPU based on its type. This automatic detection is not perfect, particularly for games launched through a launcher, emulator, or an unusual executable name, which can be misidentified as a lightweight application and assigned to the integrated GPU by mistake.
Manually assigning a game to the dedicated GPU
- Right-click the desktop and open your GPU control panel (Nvidia Control Panel or AMD Software).
- Find "Manage 3D Settings" (Nvidia) or the equivalent Graphics settings page (AMD), then the Program Settings tab.
- Add the specific game executable if it is not already listed (browse to its install folder, usually inside Program Files or a Steam/Epic library folder).
- Set the "Preferred graphics processor" for that program to your dedicated GPU (High-performance Nvidia processor, or equivalent).
- Alternatively, in Windows Settings, go to System, Display, Graphics, add the game, and set its GPU preference to "High performance" there.
Tip: Task Manager's Performance tab can confirm which GPU is actually active – open it while the game is running and check the usage percentage on both the integrated and dedicated GPU entries.
Battery life versus performance trade-off
Hybrid graphics exists for a good reason: the dedicated GPU uses significantly more power, so forcing every application to use it drains a laptop's battery much faster. For everyday browsing and office work, leaving the integrated GPU as the default is the right call. The goal is being deliberate about which specific games or creative applications get the dedicated GPU override, not switching everything over indiscriminately.
| Task | Recommended GPU |
|---|---|
| Web browsing, office apps, video calls | Integrated (default) |
| Gaming, video editing, 3D rendering | Dedicated (manually assigned if needed) |
| On battery power away from a charger | Integrated where possible to preserve battery life |
External monitors and hybrid graphics
Plugging a hybrid laptop into an external monitor can complicate things further, since the display may be wired directly to the integrated GPU, meaning the dedicated GPU has to render a frame and then copy it across before it reaches the screen, adding a small amount of overhead. Some laptops offer a "MUX switch" in their BIOS or software that connects the dedicated GPU directly to the external port, bypassing this step entirely and improving performance when it is available.
Before you start: check your laptop manufacturer's software (such as a control centre or Gaming Mode app) for a MUX switch or "Discrete GPU only" option, since enabling it typically requires a restart and disables the integrated GPU until switched back.
Frequently asked questions
- How do I know if my laptop has hybrid graphics?
- Check Task Manager's Performance tab; if you see two separate GPU entries (for example, Intel and Nvidia, or Intel and AMD), your laptop uses hybrid graphics.
- Does forcing dedicated GPU use always improve FPS?
- Almost always for demanding games, since the dedicated GPU is built specifically for that workload, though the gain is smaller if a MUX switch is not available and the extra copy step adds slight overhead.
- Will this setting reset after a driver update?
- Occasionally, particularly after a clean driver install using DDU, so it is worth checking your per-game GPU assignments after any major driver change.