Can Qwen3-Coder 480B A35B Instruct run on AMD Instinct MI350X 288GB?
BARELY — Tight on Memory
Qwen3-Coder 480B A35B Instruct needs ~325.4 GB VRAM. AMD Instinct MI350X 288GB has 288.0 GB. With Q4_K_M quantization, expect ~35 tok/s.
Operating mode
Choose the run profile you care about
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
37.4 GB over capacity — needs offload or smaller quantization
Fit status
Very compromised (needs ~33.6 GB host RAM)
Decode
35.3 tok/s
TTFT
5482 ms
Safe context
4K
Memory
325.4 GB / 288.0 GB
Offload
10%
Memory breakdown
See how fast it feels
What limits this setup
It fits through host-memory offload, and offload is the main reason performance drops.
CPU or host-memory offload is active
About 10% of the working set spills out of accelerator memory, which usually hurts latency and sustained decode throughput.
Very little memory headroom
You can run the model, but there is not much room left for longer context, bigger batches, extra apps, or future model updates.
Best improvement path
Remove offload with more accelerator memory
Prioritize a GPU or unified-memory tier that fits the whole model natively. Removing offload usually helps more than small compute gains.
Buy headroom, not only minimum fit
A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.
Increase host RAM if you keep offloading
This setup may need roughly 33.6 GB of extra host RAM just for the offloaded portion, before OS and other tools.
Performance by workload
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | A | Very compromised (needs ~32.5 GB host RAM) | 35.6 tok/s | 2962 ms | 4K |
| Coding | A | Very compromised (needs ~33.6 GB host RAM) | 35.3 tok/s | 5482 ms | 4K |
| Agentic Coding | A | Very compromised | 31.7 tok/s | 8883 ms | 4K |
| Reasoning | A | Very compromised (needs ~33.6 GB host RAM) | 35.3 tok/s | 6478 ms | 4K |
| RAG | A | Very compromised (needs ~35.9 GB host RAM) | 34.7 tok/s |
Quantization options
How Qwen3-Coder 480B A35B Instruct (480B params) fits at each quantization level on AMD Instinct MI350X 288GB (288.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_KBest for your GPU | 2 | 187.2 GB | Low | S86 |
Q3_K_S | 3 | 235.2 GB | Low | F0 |
Get started
Copy-paste commands to run Qwen3-Coder 480B A35B Instruct on your machine.
Run
lms load Qwen3-Coder-480B-A35B-Instruct && lms server start