GLM-4 9B needs ~8.2 GB VRAM. Radeon RX 6850M XT 12GB has 12.0 GB. With Q4_K_M quantization, expect ~48 tok/s.
Operating mode
Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.
Current mode
Balanced
Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.
Select quantization to explore
Fit status
Runs well
Decode
48.2 tok/s
TTFT
4017 ms
Safe context
116K
Memory
8.2 GB / 12.0 GB
This setup is broadly balanced for this model.
No major red flags
This recommendation has enough memory headroom and acceptable estimated speed for the selected workload.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | A | Runs well | 48.2 tok/s | 2191 ms | 116K |
| Coding | A | Runs well | 48.2 tok/s | 4017 ms | 116K |
| Agentic Coding | A | Runs well | 48.2 tok/s | 5843 ms | 116K |
| Reasoning | A | Runs well | 48.2 tok/s | 4747 ms | 116K |
| RAG | A | Runs well | 48.2 tok/s | 7303 ms | 116K |
How GLM-4 9B (9B params) fits at each quantization level on Radeon RX 6850M XT 12GB (12.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 3.5 GB | Low | A71 |
Q3_K_S | 3 | 4.4 GB | Low | A73 |
NVFP4 | 4 | 5.0 GB | Medium | A73 |
Q4_K_M | 4 | 5.5 GB | Medium | A74 |
Q5_K_M | 5 | 6.5 GB | High | A74 |
Q6_KBest for your GPU | 6 | 7.4 GB | High | A73 |
Q8_0 | 8 | 9.6 GB | Very High | F0 |
F16 | 16 | 18.5 GB | Maximum | F0 |
Copy-paste commands to run GLM-4 9B on your machine.
Run
ollama run glm4Your hardware
| Model | Params | Grade | Decode | Capabilities |
|---|---|---|---|---|
 Qwen 3 14B | 14B | A | 19.1 tok/s | |
 Phi-4-reasoning-plus 14B | 14.7B | A | 15.4 tok/s | |
 Ministral 3 14B | 14B | A | 19 tok/s | |
| Phi-4 14B | 14B | A | 17.3 tok/s | |
| Qwen 2.5 14B | 14B | B | 17.7 tok/s |
Yes, Radeon RX 6850M XT 12GB can run GLM-4 9B with a A grade (Runs well). Expected decode speed: 48.2 tok/s.
GLM-4 9B (9B parameters) requires approximately 8.2 GB of memory with Q4_K_M quantization.
The recommended quantization for GLM-4 9B is Q4_K_M, which balances quality and memory efficiency.
On Radeon RX 6850M XT 12GB, GLM-4 9B achieves approximately 48.2 tokens per second decode speed with a time-to-first-token of 4017ms using Q4_K_M quantization.
For coding workloads, GLM-4 9B on Radeon RX 6850M XT 12GB receives a A grade with 48.2 tok/s and 116K context.
On Radeon RX 6850M XT 12GB, GLM-4 9B can safely use up to 116K tokens of context. The model's official context limit is 128K, but available memory constrains the safe maximum.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/glm-4-9b-on-rx-6850m-xt-12gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
Preview: