Can I Run GLM-5 / GLM-5.1 on NVIDIA GeForce RTX 4070?
Written by Jakub Rusinowski · Last updated July 12, 2026
Yes, comfortably — GLM-5 9B at Q4_K_M needs 7.4 GB at 8K context (5.4 GB weights + 2 GB KV cache/overhead), leaving ~4.6 GB of the NVIDIA GeForce RTX 4070's 12 GB, at ~66 tok/s (est.), with room for up to 32K context.
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NVIDIA GeForce RTX 4070 Specs
| VRAM | 12 GB |
| Memory Bandwidth | 504 GB/s |
GLM-5 9B on the NVIDIA GeForce RTX 4070: VRAM by quantization
| Quant | VRAM needed | Fits 12 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 20 GB | ✗ No | — | — |
| Q8_0 | 11.6 GB | ✓ Yes | 8K | — |
| Q6_K | 9.4 GB | ✓ Yes | 16K | — |
| Q5_K_M | 8.4 GB | ✓ Yes | 16K | — |
| Q4_K_M | 7.4 GB | ✓ Yes | 32K | — |
| Q3_K_M | 5.8 GB | ✓ Yes | 32K | — |
| Q2_K | 5 GB | ✓ Yes | 32K | — |
Assumes an 8K-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 12 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 4070: 8K 7.4 GB · 32K 11.1 GB · 125K 25.1 GB ✗. Past 125K it no longer fits 12 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
No compatible GPU? GLM-5 9B on 8 GB of system RAM, CPU only: runs, but it is tight.
GLM-5 / GLM-5.1 Sizes That Fit the NVIDIA GeForce RTX 4070 (at 8K context)
| GLM-5 9B | Q4_K_M · 7.4 GB at 8K context · ~66 tok/s (est.) |
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FAQ
Can I run GLM-5 / GLM-5.1 on the NVIDIA GeForce RTX 4070?
Yes, comfortably — GLM-5 9B at Q4_K_M needs 7.4 GB at 8K context (5.4 GB weights + 2 GB KV cache/overhead), leaving ~4.6 GB of the NVIDIA GeForce RTX 4070's 12 GB, at ~66 tok/s (est.), with room for up to 32K context.
What's the best GLM-5 / GLM-5.1 size for the NVIDIA GeForce RTX 4070?
GLM-5 9B at Q4_K_M quantization needs 7.4 GB at 8K context (5.4 GB weights + 2 GB KV cache/overhead), estimated ~66 tokens/sec, up to 32K context.
Every GLM-5 / GLM-5.1 size on the NVIDIA GeForce RTX 4070
| Size | VRAM at 8K | Verdict | Speed |
|---|---|---|---|
| GLM-5 744B | 455.2 GB | Does not fit | — |
| GLM-5.1 72B | 46.7 GB | Does not fit | — |
| GLM-5 32B | 22 GB | Does not fit | — |
| GLM-5 9B | 7.4 GB | Runs | ~66 tok/s |
GLM-5 / GLM-5.1 on Other GPUs
- GLM-5 / GLM-5.1 on NVIDIA GeForce RTX 5070
- GLM-5 / GLM-5.1 on NVIDIA GeForce RTX 4070 Ti
- GLM-5 / GLM-5.1 on NVIDIA GeForce RTX 4070 Super
- GLM-5 / GLM-5.1 on NVIDIA GeForce RTX 3060 (12GB)
- GLM-5 / GLM-5.1 on Intel Arc B580
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VRAM Tier
Troubleshooting
Buying Guide
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