Quick answer
Low GPU usage in a game almost always means something other than the graphics card is setting the frame rate: most often the CPU (a CPU bottleneck), a frame cap such as V-Sync or an FPS limit, or the game engine itself. If your FPS is at your cap, low usage is normal and fine. If FPS is low and GPU usage is under about 90%, raise the resolution or settings: if FPS doesn’t drop, the CPU is the limit.
Is Low GPU Usage a Problem?
Not always. A graphics card at 95-99% usage is doing all the work it can, which is what you want in most games. Usage below that means the card is waiting. That’s fine when the frame rate is already where you want it, for example capped at your monitor’s refresh rate, and in light games such as esports titles at 1080p. It’s a problem only when FPS is lower than you want and the card still isn’t busy.
How to Check What Is Holding It Back
- Turn on an overlay that shows FPS, GPU usage and CPU usage per core: MSI Afterburner with RivaTuner, the NVIDIA app overlay, AMD Adrenalin’s metrics overlay or the Xbox Game Bar (Win + G).
- Play a demanding scene. If FPS sits exactly at a number such as 60, 144 or 165, a cap is the limit (see below).
- If not, raise the resolution or graphics settings. If FPS stays about the same while GPU usage rises, the CPU was the limit. If FPS drops in step, the GPU was the limit and the low usage came from somewhere else.
- Look at the busiest CPU core, not the total. Many games lean on one or two threads, so one core at 100% can hold the game back while total CPU usage reads 40%.
To see whether your CPU and graphics card are a mismatch before you test, check your pair in the PC Bottleneck Calculator.
Common Causes and Fixes
| Cause | What happens | Fix |
|---|---|---|
| CPU bottleneck | The CPU can’t prepare frames as fast as the card can draw them. Most common at 1080p, in esports titles, with high-refresh targets and in strategy or simulation games. | Raise resolution or settings to use the spare GPU power, cap FPS where it’s steady, or upgrade the CPU. Check the fastest CPU your motherboard supports first. |
| Frame cap or V-Sync | V-Sync, an in-game FPS limit, a driver limit (NVIDIA Max Frame Rate, AMD Chill) or Battery Boost stops the card from going faster. | Nothing to fix if the cap is where you want it. Otherwise raise or remove it. |
| Game or engine limit | Some engines lean on one thread, cap FPS internally, or load the world as you move. Menus and loading screens also show low usage. | Check the game’s settings and patch notes; a faster CPU helps most here. |
| Single-channel or slow RAM | One memory stick, or memory running at its default speed because XMP / EXPO is off, slows the CPU in games. | Use two sticks in the slots the motherboard manual names, and turn on XMP or EXPO in the BIOS. |
| Laptop running on the wrong GPU or power mode | The game runs on the integrated graphics, or the laptop is on battery or a quiet power mode. | Plug in, choose the performance mode, and set the game to “High performance” in Windows Settings > System > Display > Graphics. |
| Background apps and overlays | Browsers, launchers, recording and RGB software take CPU time from the game. | Close what you don’t need while gaming. |
| Heat | A CPU near its temperature limit slows itself down (thermal throttling), which shows as low GPU usage. | Check CPU temperatures under load, clean dust, and check the cooler is seated and its fans spin. |
| Drivers, BIOS and slot | Old graphics or chipset drivers, an old BIOS, or a card in a secondary slot or on a cheap riser running at fewer PCIe lanes. | Update the graphics driver, chipset driver and BIOS, and use the top full-length PCIe slot. |
CPU at 100% in Games
A CPU at or near 100% with the graphics card well below that is the clearest sign of a CPU bottleneck. Older 4- and 6-core chips hit it first in big open-world and multiplayer games. Close background apps and check temperatures first; if it stays at 100%, a faster CPU is the fix, and our PC Upgrade Calculator shows how much a new chip would add with your card.
Stutter and FPS Drops
- Stutter in the first minutes of a new game or after a driver update is often shader compilation; it usually settles once the shaders are built.
- Stutter that gets worse at higher texture settings points to running out of VRAM; lower texture quality first. Our GPU VRAM Calculator shows how much a resolution needs.
- Drops when lots happens on screen (crowds, explosions, big battles) are usually the CPU. Drops after long sessions point to heat.
- Too little RAM causes stutter when the game streams new areas; check our RAM Calculator.
More on the theory in CPU bottleneck explained. If the card is the limit and you want more FPS, upscaling and frame generation can add a lot; for an upgrade plan, start with the PC Upgrade Calculator.
Frequently Asked Questions
Why is my GPU usage low but FPS also low?
Something else is setting the frame rate, most often the CPU. Raise the resolution: if FPS stays the same, the CPU is the limit. Also check for an FPS cap, single-channel RAM and a laptop running on battery.
Is 100% GPU usage bad?
No. In games it means the graphics card is doing all the work it can, which is normal and healthy as long as temperatures are in range.
Does upscaling help with low GPU usage?
Usually not. Upscaling makes the graphics card’s job lighter, but when usage is already low, the CPU or a cap is the limit. Raising settings or resolution uses the spare power better.
Why is my GPU usage low in esports games?
Esports titles are light on the graphics card and run at hundreds of FPS, so the CPU sets the frame rate. That is normal; a faster CPU is what raises FPS there.