MSI Afterburner is free, works on almost any GPU brand despite the name, and is one of the most useful utilities you can install on a gaming laptop. It monitors your hardware, overlays stats in-game, and lets you tune the GPU. Here is what it does and how to use it safely on a laptop.
What it actually is
Afterburner is a GPU monitoring and tuning tool. It reads clocks, temperatures, power, and usage; it bundles RivaTuner Statistics Server (RTSS) for the in-game on-screen display; and it exposes sliders for core/memory clocks, power limit, and fan behavior. On a laptop, some of those sliders are locked down by the manufacturer, but the monitoring and overlay features work everywhere and are reason enough to install it.
| Feature | Works on laptops? | Use |
|---|---|---|
| Monitoring (temps/clocks/usage) | Yes | Health checks, logging |
| On-screen display (RTSS) | Yes | Live fps + temps in-game |
| Core/memory overclock | Sometimes limited | Small gains, test carefully |
| Core undervolt (curve) | Often via curve editor | Lower heat, same performance |
| Fan curve | Often locked by OEM | OEM app usually controls fans |
Set up the in-game overlay
This is the killer feature. In Afterburner’s settings, open the Monitoring tab, tick the values you want (GPU/CPU temp, clocks, framerate, 1% lows, RAM/VRAM usage), and enable “Show in On-Screen Display” for each. Launch a game and you will see a live readout. It makes spotting throttling, memory limits, and stutters trivial.
Undervolting: the best laptop tweak
Rather than overclocking, the smart move on a thermally constrained laptop is undervolting the GPU with the curve editor (Ctrl+F). By running the same clocks at a lower voltage, you cut heat and power draw — which on a laptop often means the GPU can hold higher sustained clocks because it stops hitting the thermal or power ceiling. Done well, undervolting can lower temps 5-10 C and even raise average fps in thermally limited games. Test stability with a stress run before trusting it.
A word of caution
Make small changes and test each one. Push clocks too far and you get crashes or artifacts; a bad undervolt can cause instability. Note your safe values, and remember many laptops restrict overclocking headroom on purpose. If a setting causes a crash, Afterburner reverts on reboot, so nothing is permanent.
A safe first-time undervolt walkthrough
If you want to try the curve editor, go slowly and methodically. Open the voltage/frequency curve with Ctrl+F, pick a point in the middle of the curve (for example around 800-850mV), and set the clock there to what the GPU would normally reach at a higher voltage — effectively pulling the same performance from less power. Flatten the curve to the right of that point so the GPU cannot exceed it, apply, and the chip now targets your chosen clock at a lower voltage.
Then test. Run a stress tool or a demanding game for 20-30 minutes and watch for crashes, driver resets, or visual artifacts. If it is stable, you should see lower temperatures and, on a thermally limited laptop, sometimes higher sustained clocks because the GPU stops slamming into its power or thermal ceiling. If it crashes, dial the clock back a notch and retest. Save a stable profile so it loads at startup. Keep every change small and documented — a good undervolt is a quiet, permanent win of cooler, quieter, sometimes faster gaming, while a rushed one just gives you random crashes you will struggle to trace.
FAQ
Does MSI Afterburner work on non-MSI laptops?
Yes. It supports NVIDIA and AMD GPUs across all laptop brands. You do not need any MSI hardware to use it.
Should I overclock my laptop GPU with it?
Overclocking a laptop GPU gives small gains because you are usually power- and thermal-limited already. Undervolting is the better use of Afterburner on a laptop — same or better performance with less heat. Use the monitoring and overlay features regardless.
Bottom line
Install MSI Afterburner on any gaming laptop for its excellent monitoring and in-game overlay alone. If you want to tune, skip overclocking and try a careful undervolt via the curve editor to run cooler and hold clocks longer. Just make incremental changes, test stability, and let the OEM app keep control of the fans.
