Is Qwen3-Coder-30B-A3B-Instruct or Gemma-4-19B smaller?

Gemma-4-19B is smaller at Q4_K_M: 11.45 GiB against 17.28 GiB.

Which uses less memory at long context?

Gemma-4-19B — its KV cache at 32K context is 1.9x smaller, because of how its attention layers cache.

Model comparison

Qwen3-Coder-30B-A3B-Instruct vs Gemma-4-19B

At Q4_K_M, Gemma-4-19B is the smaller download — 12,291,399,040 bytes against 18,556,689,568. At long context the gap widens: Gemma-4-19B's KV cache at 32K is 1.9× smaller, which usually matters more than the difference in weights.

From the file· summed bytes, KV per layer

Side by side

	Qwen3-Coder-30B-A3B-Instruct	Gemma-4-19B
Parameters	30.5B	19.0B
Architecture	qwen3moe	gemma4
Layers	48	30
Native context	262,144	262,144
Mixture of experts	yes, 128 experts	yes, 90 experts
Quantizations published	46	35
Smallest quantization	7.46 GiB	5.70 GiB
Q4_K_M	17.28 GiB	11.45 GiB
Licence	apache-2.0	gemma

KV cache by context

the term that decides long-context viability

Context	Qwen3-Coder-30B-A3B-Instruct	Gemma-4-19B	Ratio
4,096	0.38 GiB	0.45 GiB	1.20×
8,192	0.75 GiB	0.61 GiB	1.24×
16,384	1.50 GiB	0.92 GiB	1.63×
32,768	3.00 GiB	1.54 GiB	1.94×
65,536	6.00 GiB	2.79 GiB	2.15×
131,072	12.00 GiB	5.29 GiB	2.27×