Hi everyone!
I'm having a performance issue with modded Minecraft, and I'm not sure what's causing it. I'm hoping someone here can help me figure it out.
My PC specs:
- GPU: NVIDIA RTX 4070 SUPER (12 GB VRAM)
- CPU: AMD Ryzen 7 5800X3D
- RAM: 32 GB DDR5
- Launcher: CurseForge
- Allocated RAM: 10 GB
The problem:
Minecraft starts stuttering after a few minutes badly. This can happen even when I'm standing still or sitting in the game settings menu. The issue usually lasts around a minute, then everything goes back to normal and then again stuttering. It happens in every bigger modpack I try (stoneblock 4, ATM10, ragnamod VII)
During these periods:
- System RAM usage reaches around 99%.
- Dedicated GPU memory usage reaches approximately 10.7/12 GB.
- GPU 3D utilization sometimes spikes to 90–100%.
- The OpenJDK Platform Binary process uses around 7 GB of RAM.
When I close Minecraft, system RAM usage drops back to around 32%.
I've also tried closing background applications such as Brave, but that didn't help. Other games run normally, so I'm wondering if this is related to the Java, a memory leak, or some graphics settings.
Other games run normally (cyberpunk, witcher 3 remaster, wardogs, ect.)
I recently had my PC serviced so it shouldn't be a problem with my PC, physically at least.
Does anyone know what could cause this?