Low GPU Usage / GPU Not Being Fully Used
What is this error?
GPU utilization is well below 100% in games, resulting in lower FPS than expected. The GPU has spare capacity but isn't being used.
Common causes
- CPU bottleneck
- RAM speed bottleneck
- wrong GPU selected (integrated vs dedicated)
- power management limiting GPU
- game engine single-thread bottleneck
How to fix it
- Check for CPU bottleneck
- enable XMP
- ensure dedicated GPU is used
- set power plan to High Performance
Too many steps? Crashless can diagnose this automatically — checks your drivers, temps, VRAM, and 400+ known error patterns.
Get free AI diagnosis Detailed analysis
Your RTX 4070 is sitting at 50% usage while you're getting 60fps — that's a bottleneck somewhere else in the system preventing the GPU from working at full capacity.
How to diagnose:
- Open Task Manager > Performance while gaming. Check CPU usage — if any core is at 100%, you have a CPU bottleneck
- Check RAM speed in Task Manager > Performance > Memory. If it says 2133MHz on DDR4, XMP isn't enabled
- Open GPU-Z and verify the GPU is running at the correct clock speed and PCIe bandwidth
How to fix it:
- Enable XMP/EXPO in BIOS — RAM at 2133MHz instead of 3600MHz can cut FPS by 20-30%
- Make sure the game is using your dedicated GPU: Windows Settings > Display > Graphics > add the game, set to 'High performance'
- In NVIDIA Control Panel or AMD Adrenalin, set Power Management to 'Maximum Performance' for the game
- Set Windows Power Plan to 'High Performance' or 'Ultimate Performance'
- Close background apps consuming CPU (browsers, Discord, streaming)
- If CPU-bottlenecked: lower CPU-heavy settings — view distance, NPC count, physics quality, simulation distance
- For competitive games, lower resolution to 1080p to shift the bottleneck to GPU
When to seek help
If this error keeps happening after trying the fixes above, it may point to a deeper hardware or system issue. Consider professional help if:
- The crash occurs across multiple games or applications
- You see the same error after a clean Windows install
- Your PC is less than a year old (could be a warranty issue)
- You smell burning or hear unusual sounds from your PC
Or let Crashless do the deep analysis for you -- our AI checks drivers, temps, event logs, and 400+ known patterns automatically.
Chat with AI about Low GPU Usage / GPU Not Being Fully Used
Describe your setup and get a personalized diagnosis in seconds. Free, no signup needed.
Get AI diagnosis Chat with AI about this error
Describe your setup and what you were doing when the crash happened. Our AI checks against 400+ known crash patterns — free, no download needed.
Let Crashless handle it
The desktop app scans your drivers, temps, VRAM, event logs, and 400+ known patterns — then walks you through the fix step by step.
