How much VRAM does gemma 3 4b it need?

gemma 3 4b it (4B parameters) requires approximately 8.4 GB of memory with Q4_K_M quantization.

What is the best quantization for gemma 3 4b it?

The recommended quantization for gemma 3 4b it is Q4_K_M, which balances quality and memory efficiency.

Can it run?

Yes, NVIDIA A100 40GB can run gemma 3 4b it with a C grade (Runs well). Expected decode speed: 458.9 tok/s.

CUsable

Runs well

Using Q4_K_M in Ollama

Capabilities:

Fit status

Runs well

Decode

458.9 tok/s

TTFT

422 ms

Safe context

76K

Memory

8.4 GB / 40.0 GB

Weights2.4 GB

KV Cache0.8 GB

Runtime1.2 GB

Headroom4.0 GB

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	C	Runs well	535.3 tok/s	526 ms	144K
Chat	C	Runs well	535.3 tok/s	350 ms	38K
Coding	C	Runs well	458.9 tok/s	422 ms	76K
RAG	C	Runs well	535.3 tok/s	658 ms	144K
Reasoning	C	Runs well	535.3 tok/s	427 ms	76K

How gemma 3 4b it (4B params) fits at each quantization level on NVIDIA A100 40GB (40.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	1.6 GB	Low	D30
Q3_K_S	3	2.0 GB	Low	D30
NVFP4	4

Upgrade options

MacBook Pro M4 Pro 64GBBudget pick

C86.2 tok/s decode

~$1,599 MSRP

MacBook Pro M3 Max 64GBBest value

C98.4 tok/s decode

~$2,499 MSRP