Can I Run GLM-5 744B on NVIDIA GeForce RTX 3090?

Name: LLM Configurator — GPU VRAM Checker
Author: LLM Configurator

Written by Jakub Rusinowski · Last updated August 15, 2026

No. GLM-5 744B needs 449.2 GB at Q4_K_M and the NVIDIA GeForce RTX 3090 has only 24 GB. No quantization we publish closes a gap that size.

The numbers

Model	GLM-5 744B
Parameters	744B
Quantization	Q4_K_M
VRAM needed	449.2 GB
NVIDIA GeForce RTX 3090 VRAM	24 GB
Verdict	Does not fit

What to do next

Either step down to a smaller size in this family, or move to a Apple M3 Ultra (512 GB), the cheapest card we track with enough VRAM.

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Cheapest card we track with enough VRAM for GLM-5 744B:

Apple Mac Studio M3 Ultra

512 GB VRAM · 60 W board power

2026 prices are volatile — check the current listing.

Check price on Amazon

Won't fit — rent GLM-5 744B instead

GLM-5 744B needs ~449 GB but this GPU has 24 GB. Rent a 8× H100 (640 GB)-class GPU by the hour instead of buying one:

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RunPod $23.12/hr

Rent on RunPod →

Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.

Other GLM-5 / GLM-5.1 sizes on the NVIDIA GeForce RTX 3090

GLM-5.1 72B — does not fit (43.5 GB)
GLM-5 32B — runs (19.3 GB)
GLM-5 9B — runs (5.4 GB)

GLM-5 744B on nearby hardware

Intel Arc B580 (12 GB) — does not fit
NVIDIA GeForce RTX 5090 (32 GB) — does not fit

All GLM-5 / GLM-5.1 sizes on the NVIDIA GeForce RTX 3090 | VRAM calculator for GLM-5 744B | NVIDIA GeForce RTX 3090 GPU page | Check your hardware