MiniMax H3 runs on an RTX 5090, but system RAM usage is very high

spacemidget75 · reddit · 2026-08-04

A user testing MiniMax H3 says the model is not sweating their RTX 5090 VRAM, but asks why RAM usage is so high even on a machine with 64GB of system memory.

The post is essentially a quick observation about the model’s local runtime footprint, with the attached screenshot showing GPU and RAM usage while running the model.

Related event: MiniMax H3 Local Deployment Faces Severe OOM and Resource Issues(7 posts)→

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