warningLauncher ErrorsAffects: All versions
How to Fix High CPU Usage in Minecraft
Fix High CPU Usage by ensuring Minecraft uses the dedicated GPU, lowering render distance, and installing optimization mods.
Quick Fix
Ensure Minecraft is using your dedicated GPU, not integrated graphics. Lower render distance.
Error Message
Minecraft using 100% CPU / excessive CPU usageHow to Fix
1
Set Minecraft to use dedicated GPU in system graphics settings
2
Lower render distance to 8-12 chunks
3
Install performance mods (Sodium, Lithium, Starlight)
4
Limit frame rate (V-Sync or max FPS cap)
5
Update Java and graphics drivers
Common Causes
- Integrated graphics forcing CPU rendering
- High render distance with many entities
- Mod causing excessive processing
- Java process not using GPU properly
Diagnostic Steps
- Check if Minecraft is using the correct GPU (F3 screen shows GPU)
- Right-click desktop > Graphics settings > Add Minecraft > High Performance
- Lower render distance
- Install Sodium or similar optimization mod
FAQ
How do I know which GPU Minecraft is using?
Press F3 in-game. The top right shows the GPU. If it says 'Intel' on a laptop with a dedicated GPU, you need to switch.