CogVLM2 19B needs ~21.8 GB VRAM. Mac mini M4 64GB has 46.1 GB. With Q4_K_M quantization, expect ~10 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
10.0 tok/s
TTFT
19327 ms
Safe context
8K
Memory
21.8 GB / 46.1 GB
This setup is broadly balanced for this model.
Shared-memory contention still exists
The OS, browser, and inference runtime all compete for the same physical memory pool, so real-world headroom is less forgiving than raw capacity suggests.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | A | Runs well | 10.0 tok/s | 10542 ms | 8K |
| Coding | A | Runs well | 10.0 tok/s | 19327 ms | 8K |
| Agentic Coding | A | Runs well | 10.0 tok/s | 28111 ms | 8K |
| Reasoning | A | Runs well | 10.0 tok/s | 22841 ms | 8K |
| RAG | A | Runs well | 10.0 tok/s | 35139 ms | 8K |
How CogVLM2 19B (19B params) fits at each quantization level on Mac mini M4 64GB (46.1 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 7.4 GB | Low | A76 |
Q3_K_S | 3 | 9.3 GB | Low | A76 |
NVFP4 | 4 | 10.6 GB | Medium | A77 |
Q4_K_M | 4 | 11.6 GB | Medium | A77 |
Q5_K_M | 5 | 13.7 GB | High | A77 |
Q6_K | 6 | 15.6 GB | High | A78 |
Q8_0 | 8 | 20.3 GB | Very High | A80 |
F16Best for your GPU | 16 | 38.9 GB | Maximum | A81 |
Copy-paste commands to run CogVLM2 19B on your machine.
Run
docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \
--hf-repo "THUDM/cogvlm2-llama3-chat-19B" \
--hf-file "cogvlm2-llama3-chat-19B-Q4_K_M.gguf" \
-c 4096 -ngl 99Your hardware
| Model | Params | Grade | Decode | Capabilities |
|---|---|---|---|---|
 Qwen3-Coder 30B A3B Instruct | 30.5B | S | 13.1 tok/s | |
| Qwen 3.5 27B | 27B | S | 9.3 tok/s | |
| Qwen 3.6 27B | 27B | S | 7.1 tok/s | |
| Qwen 3.6 35B A3B | 35B | S | 12.1 tok/s | |
| Qwen3-VL 30B A3B Instruct | 30B | S | 13.5 tok/s |
Yes, Mac mini M4 64GB can run CogVLM2 19B with a A grade (Runs well). Expected decode speed: 10.0 tok/s.
CogVLM2 19B (19B parameters) requires approximately 21.8 GB of memory with Q4_K_M quantization.
The recommended quantization for CogVLM2 19B is Q4_K_M, which balances quality and memory efficiency.
On Mac mini M4 64GB, CogVLM2 19B achieves approximately 10.0 tokens per second decode speed with a time-to-first-token of 19327ms using Q4_K_M quantization.
For coding workloads, CogVLM2 19B on Mac mini M4 64GB receives a A grade with 10.0 tok/s and 8K context.
On Mac mini M4 64GB, CogVLM2 19B can safely use up to 8K tokens of context. The model's official context limit is 8K, but available memory constrains the safe maximum.
Not always. Mac mini M4 64GB can often fit larger models thanks to unified memory, but a discrete GPU with dedicated high-bandwidth VRAM may still decode faster once the model fits. For this combination, the important distinction is capacity versus sustained throughput.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/cogvlm2-19b-on-m4-mini-64gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
Preview: