Can the Arc B570 run Qwen3.5 4B?
Fits comfortably at Q4_K_M.
Qwen3.5 4B is 4.66B parameters. At Q4_K_M the weights are about 2.6 GiB; with the 1.5 GiB runtime reserve that is 4.1 GiB against the card's 10GB, leaving about 5.9 GiB for context.
All three quants
10GB card| Quant | Weights | With reserve | Verdict | Headroom |
|---|---|---|---|---|
| Q4_K_Mthe everyday quant | 2.6 GiB | 4.1 GiB | Fits comfortably | 5.9 GiB |
| Q8_0near-lossless | 4.6 GiB | 6.1 GiB | Fits comfortably | 3.9 GiB |
| FP16full weights | 8.7 GiB | 10.2 GiB | Only with CPU offload | short 0.2 GiB |
Verdict rules: fits comfortably when weights plus reserve sit within 85% of VRAM; tight when they fit with little left for context; CPU offload when they exceed VRAM by up to 2x (runs, slowly, with layers in system RAM); no beyond that. The KV cache per token depends on the model's architecture and is not modelled here.
Good match. Get the card.
The Arc B570 clears Qwen3.5 4B at Q4_K_M and at Q8_0. Live listings below; this page was rebuilt 2026-08-23.
Amazon links may earn us a commission. Prices move daily; the links open live listings.
About the model
Qwen3.5 4B by Alibaba Qwen: 262,144-token native context, text + vision, released 2026 under the Apache-2.0. Model card →