Is Gemma-4-19B or gemma-4-E4B-it smaller?

gemma-4-E4B-it is smaller at Q4_K_M: 4.64 GiB against 11.45 GiB.

Which uses less memory at long context?

gemma-4-E4B-it — its KV cache at 32K context is 3.1x smaller, because of how its attention layers cache.

Model comparison

Gemma-4-19B vs gemma-4-E4B-it

At Q4_K_M, gemma-4-E4B-it is the smaller download — 4,977,171,584 bytes against 12,291,399,040. At long context the gap widens: gemma-4-E4B-it's KV cache at 32K is 3.1× smaller, which usually matters more than the difference in weights.

From the file· summed bytes, KV per layer

Side by side

	Gemma-4-19B	gemma-4-E4B-it
Parameters	19.0B	8.0B
Architecture	gemma4	gemma4
Layers	30	42
Native context	262,144	131,072
Mixture of experts	yes, 90 experts	no
Quantizations published	35	36
Smallest quantization	5.70 GiB	3.30 GiB
Q4_K_M	11.45 GiB	4.64 GiB
Licence	gemma	apache-2.0

KV cache by context

the term that decides long-context viability

Context	Gemma-4-19B	gemma-4-E4B-it	Ratio
4,096	0.45 GiB	0.12 GiB	3.65×
8,192	0.61 GiB	0.18 GiB	3.41×
16,384	0.92 GiB	0.29 GiB	3.20×
32,768	1.54 GiB	0.51 GiB	3.05×
65,536	2.79 GiB	0.94 GiB	2.96×
131,072	5.29 GiB	1.82 GiB	2.91×