Is there any way to disable Nvidia Optimus?

[NomNom]

It's really annoying me, buying a laptop with 840M in it, and cannot be used as default GPU? That's dumb. I have Dell branded laptop, I want to disable it so I can play games with higher FPS (Haven't tried any games yet).

[OLDMAN🎅]

you want to disable GeForce 840M card to get higher FPS in game,
2GB NVIDIA® GeForce® 840M

its switch to Nvidia GT 840M from Intel HD Graphics when playing a game?

[NomNom]

โพสต์ดั้งเดิมโดย OLD*MAN | trade.tf:

you want to disable GeForce 840M card to get higher FPS in game,
2GB NVIDIA® GeForce® 840M

its switch to Nvidia GT 840M from Intel HD Graphics when playing a game?

Actually, I've tested it out but it now uses GT 840M

[Bad 💀 Motha]

Disable what? You can't disable the Intel GPU; it uses that to transfer the frame buffer data to the screen(s).

Uninstall the Intel & NVIDIA GPU Drivers that came with Dell; then go get the latest ones from Intel and NVIDIA sites for your model of GPU and OS. After they both installed and you've rebooted, set NVIDIA GPU as default in NVIDIA Control Panel.

[Azza ☠]

A normal laptop toggles between Graphics card (for gaming) and Intel GPU (light tasks such as web-browsing), to save power when not plugged in.

Nvidia Optimus takes that standard toggle and makes it 10x the performance by using both at the same time. Behind the scenes and with no interference to what you're doing, Optimus seamlessly figures out how to best optimize your notebook computing experience. Allowing you to experience longer battery life without as much performance lost.

It's how all laptops work (and is builtin) for power saving, but Optimus is meant as a much better version of it.

Nvidia Optimus also gives you the option to run with whatever graphics processor you want: Just right-click the app/game and "Run with graphics processor > High-performance Nvidia Processor", which should be default anyways. You can do the same under NVIDIA control panel, for each application profile to keep those settings.

If you really want to disable it completely: Check under your BIOS (normally F2 upon booting) and under Control Panel > Power Settings, change everything to "high-performance"... just note you will get a much shorter battery life.

[Xii-Nyth]

ignore this nvshill you cant use 2 different architectures in parallel, and optimis ♥♥♥♥♥ up tons of systems. makes my 3070 in a laptop perform like a desktop 3070 and prevents eithere the cpu or gpu from being 100% utilized even if one of them is bounding performance. plus causes tons of crashes in modern games especially those with texture streaming

[Bad 💀 Motha]

Optimus died with the GT/GTX 3xxM series.
Optimus = The Intel + NVIDIA Drivers were an all in one collaboration based bundle.

Since the GT/GTX 5xxM series this has no longer been a thing; meaning the Intel + NVIDIA Drivers are handled independently of one another.

Now with all that being known facts, the two DO still work together as one by design for the Mobile platforms. Why is this? Well because the Motherboards do not have two discrete pathways for Displays like a Desktop would have. These such mobile devices all must route the Display information through the Intel GPU to reach any connected Display, period. The software Drivers allow users to dictate which GPU is used when needed. For example I can force it so the NVIDIA GPU is never used outside of Video or 3D API based Rendering and things like Games. This way my Laptop stays cooler because whenever I'm just using the OS Desktop, I'm using only the Intel GPU. However when I do use the NVIDIA GPU, it must route frames and display output information through the Intel GPU pipe-line to reach any connected Display.

Whenever you buy a Laptop, I suggest the following be done to it:
> Wipe the OS Drive clean and then do a clean install of the latest OS (Linux Distro or Win10; 64bit). With Win10 as long as you install the same "Edition" your system will auto-re-activate based on a Digital License that Laptop is tied to based on the OEM Motherboard.
> Download and install all latest drivers yourself, never through Windows Updates service. This means Motherboard Chipset, GPU(s), Audio, LAN, WIFI, BT, Touchpad. The only drivers you usually will need from the Laptop makers site are things such as Touchpad and if the Laptop has any software regarding Lighting or Fan controls; this needs to be installed as well if the user wants any control over those things.
> Unlock all CPU Cores.
> Under-Volt the CPU as much as possible while still being stable system-wide across all Apps.
> Try your best to keep ahead of the Laptop getting dusty, before it gets clogged up, which it will if you allow it to happen. Sometimes dust can get so bad its not only inside the keyboard and under the keys, it's under the keyboard itself (from intake based airflow from the bottom) and traps dust between the keyboard and chassis; or keyboard and motherboard.