Head-to-head · Qwen3-VL
Qwen3-VL 4B vs Qwen3-VL 8B
Qwen3-VL 4B needs ~4.4 GB at Q4_K_M; Qwen3-VL 8B needs ~7.3 GB. That ~2.9 GB gap decides which hardware runs each; they differ on 3 of the 11 devices below.
Which devices run each
A representative spread across the memory range. Tap a verdict for the full breakdown.
Size at each quantization
* derived from bits-per-weight; unstarred sizes are measured GGUF files.
Bottom line
The larger Qwen3-VL 8B needs ~7.3 GB; Qwen3-VL 4B runs on lighter hardware at ~4.4 GB with more headroom and faster responses. Check each against your exact device: what runs Qwen3-VL 4B · what runs Qwen3-VL 8B.
More Qwen3-VL comparisons
FAQ
What is the difference in memory between Qwen3-VL 4B and Qwen3-VL 8B?
At Q4_K_M, Qwen3-VL 4B needs about 4.4 GB and Qwen3-VL 8B needs about 7.3 GB, a difference of ~2.9 GB.
Should I run Qwen3-VL 4B or Qwen3-VL 8B?
Run Qwen3-VL 8B if your hardware has the ~7.3 GB it needs and you want maximum quality; run Qwen3-VL 4B (~4.4 GB) for lighter hardware, faster responses, and more memory headroom.
Full breakdowns: Qwen3-VL 4B · Qwen3-VL 8B · all models × devices.
Sources
-
ollama.com · 2 sources
Memory figures are estimates at Q4_K_M. Catalog updated 2026-10-05. See methodology.