Running Qwen 3.6 27B on B300 SXM
Qwen 3.6 27B has 27 billion parameters. B300 SXM offers 2,304 GB of HBM3e across 8 GPUs memory. This page puts the two side by side.
How much memory does Qwen 3.6 27B need?
Weights take the parameter count multiplied by the format size, plus a 15% runtime margin for activations and buffers. The attention cache sits on top: it grows with context length and with the number of concurrent requests, so it is sized case by case.
| Format | Weights in memory | On this machine | What the format costs |
|---|---|---|---|
| FP16 | 62.1 GB | fits | full precision, the quality reference |
| FP8 | 31.0 GB | fits | negligible loss on most tasks |
| NVFP4 | 15.5 GB | fits | Blackwell format, native FP4 compute |
| Q4 | 15.5 GB | fits | block quantisation, broadly supported |
What is left to serve requests?
Qwen 3.6 27B fits comfortably on B300 SXM. In FP16, its weights take about 62.1 GB of the 2,304 GB available, leaving 2,242 GB for the attention cache and concurrency. The remaining margin decides how many concurrent requests and how much context the machine sustains. A margin below a quarter of memory forces a limit on context or on concurrency.
B300 SXM ranges from 500 to 800 k€, indicative and not contractual. The machine targets the GE segment.
Where else can Qwen 3.6 27B run?
- Qwen 3.6 27B on DGX Spark
- Qwen 3.6 27B on Mac Studio Ultra
- Qwen 3.6 27B on DGX Station
- Qwen 3.6 27B on RTX PRO 6000 server
- Qwen 3.6 27B on H200 SXM server
See the Qwen 3.6 27B and B300 SXM fact sheets.
How much memory does Qwen 3.6 27B need?
In FP16, weights take about 62.1 GB including the runtime margin. The attention cache sits on top and depends on context.
Does Qwen 3.6 27B fit on B300 SXM?
Qwen 3.6 27B fits comfortably on B300 SXM. In FP16, its weights take about 62.1 GB of the 2,304 GB available, leaving 2,242 GB for the attention cache and concurrency.
Method
Parameter counts and memory figures come from the site fact sheets. Memory footprints are calculated, not measured: a reading on real hardware may differ depending on the engine and the exact weight format. Prices are indicative and not contractual.