Can I Run GLM-4.7 / GLM-Z1 on NVIDIA GeForce RTX 4090?

Written by Jakub Rusinowski · Last updated August 15, 2026

Yes, comfortably — you'll have ~4.7 GB of headroom running GLM-Z1 32B (Reasoning) at Q4_K_M (19.3 GB, ~42 tok/s (est.)) with room for up to 16K context.

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Buy This HardwareNVIDIA GeForce RTX 4090 24GB — 24 GB VRAM · 450 W board powerDeploy in the Cloud NowRTX 4090 on RunPod — from $0.34/hr · rate checked 2026-07

or compare on Vast.ai from $0.35/hr (typical low · varies)

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NVIDIA GeForce RTX 4090 24GB
24 GB VRAM · 450 W board power
2026 prices are volatile — check the current listing.
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NVIDIA GeForce RTX 4090 Specs

VRAM24 GB
Memory Bandwidth1008 GB/s

GLM-Z1 32B (Reasoning) on the NVIDIA GeForce RTX 4090: VRAM by quantization

QuantVRAM neededFits 24 GB?Max contextWhole PC
F1665.7 GB✗ No
Q8_035.7 GB✗ NoBuild for this
Q6_K28 GB✗ No
Q5_K_M24.4 GB✗ No
Q4_K_M21 GB✓ Yes16KBuild for this
Q3_K_M15.4 GB✓ Yes32K
Q2_K12.2 GB✓ Yes32K

Assumes a 4K-token context with an f16 KV cache, on an estimated architecture — this model publishes no config we can read. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 24 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.

Context costs VRAM too. At Q4_K_M on the NVIDIA GeForce RTX 4090: 8K 22 GB · 32K 27.5 GB ✗ · 125K 49 GB ✗. Past 32K it no longer fits 24 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.

No compatible GPU? GLM-Z1 32B (Reasoning) on 32 GB of system RAM, CPU only: runs comfortably.

GLM-4.7 / GLM-Z1 Sizes That Fit the NVIDIA GeForce RTX 4090

GLM-Z1 32B (Reasoning)Q4_K_M · 19.3 GB · ~42 tok/s (est.)
GLM-4.7-Flash 30B-A3BQ4_K_M · 18.1 GB · ~195 tok/s (est.)
GLM-4.7 9BQ4_K_M · 5.4 GB · ~115 tok/s (est.)
Buy vs. rent GLM-4.7 / GLM-Z1
Buy the GPU
~$1,599
NVIDIA GeForce RTX 4090 · MSRP
Rent by the hour
from $0.34/hr
RTX 4090 (24 GB) class

At 2 hrs/day, buying (~$1,599) beats renting at $0.34/hr after about 6.5 years.

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RunPod $0.34/hr
Rent on RunPod →
Vast.ai $0.35/hr · typical low · varies
Rent on Vast.ai →

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

FAQ

Does the NVIDIA GeForce RTX 4090 have enough VRAM for GLM-4.7 / GLM-Z1?

Yes, comfortably — you'll have ~4.7 GB of headroom running GLM-Z1 32B (Reasoning) at Q4_K_M (19.3 GB, ~42 tok/s (est.)) with room for up to 16K context.

Which quantization of GLM-4.7 / GLM-Z1 should I use on the NVIDIA GeForce RTX 4090?

GLM-Z1 32B (Reasoning) at Q4_K_M quantization (19.3 GB), estimated ~42 tokens/sec, up to 16K context.

Every GLM-4.7 / GLM-Z1 size on the NVIDIA GeForce RTX 4090

SizeVRAMVerdictSpeed
GLM-Z1 32B (Reasoning)19.3 GBRuns~42 tok/s
GLM-4.7-Flash 30B-A3B18.1 GBRuns~195 tok/s
GLM-4.7 9B5.4 GBRuns~115 tok/s

GLM-4.7 / GLM-Z1 on Other GPUs

Popular Models on the NVIDIA GeForce RTX 4090

VRAM Tier

Troubleshooting

Buying Guide

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