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Head-to-head · Qwen2.5-Coder

Qwen2.5 Coder 1.5B vs Qwen2.5 Coder 14B

Qwen2.5 Coder 1.5B needs ~2 GB at Q4_K_M; Qwen2.5 Coder 14B needs ~10.1 GB. That ~8.1 GB gap decides which hardware runs each; they differ on 5 of the 14 devices below.

Spec Qwen2.5 Coder 1.5B Qwen2.5 Coder 14B
Parameters1.54B14B
Memory at Q4_K_M~2 GB~10.1 GB
Context window32k32k
LMArenanot rankednot ranked
LicenseApache-2.0Apache-2.0

Which devices run each

A representative spread across the memory range. Tap a verdict for the full breakdown.

Size at each quantization

Quant Qwen2.5 Coder 1.5B Qwen2.5 Coder 14B
Q2_K 0.6 GB* 5.9 GB*
Q3_K_M 0.8 GB* 6.8 GB*
Q4_K_M 0.92 GB 8.37 GB
Q5_K_M 1.1 GB* 10 GB*
Q6_K 1.3 GB* 11.5 GB*
Q8_0 1.53 GB 14.62 GB
FP16 3.1 GB* 28 GB*

* derived from bits-per-weight; unstarred sizes are measured GGUF files.

Bottom line

The larger Qwen2.5 Coder 14B needs ~10.1 GB; Qwen2.5 Coder 1.5B runs on lighter hardware at ~2 GB with more headroom and faster responses. Check each against your exact device: what runs Qwen2.5 Coder 1.5B · what runs Qwen2.5 Coder 14B.

More Qwen2.5-Coder comparisons

FAQ

What is the difference in memory between Qwen2.5 Coder 1.5B and Qwen2.5 Coder 14B?

At Q4_K_M, Qwen2.5 Coder 1.5B needs about 2 GB and Qwen2.5 Coder 14B needs about 10.1 GB, a difference of ~8.1 GB.

Should I run Qwen2.5 Coder 1.5B or Qwen2.5 Coder 14B?

Run Qwen2.5 Coder 14B if your hardware has the ~10.1 GB it needs and you want maximum quality; run Qwen2.5 Coder 1.5B (~2 GB) for lighter hardware, faster responses, and more memory headroom.

Full breakdowns: Qwen2.5 Coder 1.5B · Qwen2.5 Coder 14B · all models × devices.

Sources

Memory figures are estimates at Q4_K_M, validated 2026-08-03. See methodology.