Yes — with 94.2 GB to spare
Qwen3 0.6B at Q4_K_M fits your Ryzen AI Max+ 395 · 128 GB entirely in unified memory at 8K context, at an estimated 424 tokens per second. There is room for its full 32K window.
Fully in unified memory
8K context
Q4_K_M · 0.3 GB
Apache 2.0
Released Apr 2025
Useful mostly as a speculative-decoding draft model for its larger siblings.
The VRAM budget
weights 0.3 GB
Weights 0.3 GB
KV cache @ 8K 0.88 GB
Runtime overhead 0.6 GB
Free 94.2 GB of 96.0 GB
Quantisation ladder
| Quant | Weights | Total @ 8K | Max context | Tok/s | Quality | Fit |
|---|---|---|---|---|---|---|
| F16 | 1.1 GB | 2.6 GB | 32K | 128 | Reference | Long context |
| Q8_0 | 0.6 GB | 2.1 GB | 32K | 241 | −0.1% ppl | Long context |
| Q6_K | 0.5 GB | 1.9 GB | 32K | 312 | −0.4% ppl | Long context |
| Q5_K_M | 0.4 GB | 1.9 GB | 32K | 361 | −0.8% ppl | Long context |
| Q4_K_M | 0.3 GB | 1.8 GB | 32K | 424 | −1.9% ppl | Recommended |
| Q3_K_M | 0.3 GB | 1.7 GB | 32K | 524 | −5.4% ppl | Long context |
| Q2_K | 0.2 GB | 1.7 GB | 32K | 611 | −15% ppl | Long context |
Quality is the published perplexity delta against f16 weights. Max context assumes an f16 KV cache; q8_0 roughly doubles it.
How to run it
$ ollama pull qwen3:0.6b $ OLLAMA_CONTEXT_LENGTH=8192 \ ollama run qwen3:0.6b
The default. One binary, a model registry, an OpenAI-compatible port. More on Ollama.
01Download is 0.3 GB. Keep it on an SSD — a first load off a spinning disk takes minutes.
02macOS caps what the GPU may wire down at about 96.0 GB of 128 GB. Raising it with iogpu.wired_limit_mb is possible, and risky.
03There is room to go to the model's full 32K context on this card.