I’m running a high-end setup with an I9-14900 2.20 GHz processor, 64GB of RAM, and an RTX 4090 GPU. All my drivers are updated, yet I’m experiencing stuttering while playing Minecraft 1.21.4 on Modrinth, especially when using shaders and Iris. I’ve noticed multiple orange errors in the Modrinth log, which disappear when the shaders are disabled. Occasionally, my game even crashes. I’ve tried reverting my GPU drivers, but it didn’t help. Could there be some settings I’m missing? Any suggestions would be appreciated.
4 Answers
Just a guess, but sometimes stuttering can be affected by the driver settings outside of the game. Ensure the NVIDIA control panel is set up to prioritize performance for Minecraft specifically. There are settings within the control panel where you can select your preferred graphics processor, and double-check if the game is utilizing the RTX 4090 properly.
You mentioned that the orange errors disappear when disabling shaders and Iris. This suggests that shaders are highly likely the cause. Given that you’re already running a powerful setup, try reducing the graphical settings in the Iris options to see if that helps stabilize the game. Another thing to try is tweaking the Minecraft JVM arguments in your launcher to allocate better memory usage, as sometimes stuttering can be related to memory management.
It sounds like you might be having some trouble with shader compatibility. The Iris shaders often have problems on newer graphics cards and drivers, like yours. First, try disabling the shaders to see if the issue persists. If the game runs smoothly without shaders, you might want to check for any updates or patches from the shader developers. Sometimes they release new versions that fix such compatibility issues.
A lot of modern GPUs can struggle with specific game optimizations, even with high specs like yours. Check if there are any settings like “Threaded Optimizations” enabled in your NVIDIA control panel for Minecraft. Disabling them can sometimes resolve stuttering issues in combination with Sodium. Also, ensure that Minecraft uses your dedicated GPU if you’re on a laptop, as sometimes it defaults to integrated graphics.
