Can you run Granite 4.2 3B locally?

Granite 4.2 family · 2026 · 3.7B parameters (3.7B activated per token) · Hugging Face model card

How much VRAM does Granite 4.2 3B need at each quantization?

Granite 4.2 3B needs 2.4 GB of VRAM at Q4_K_M. The table below lists weights-only size and total VRAM including overhead for each common quantization level with 4k and 32k token contexts.

GQA 40/8; rope_theta=10000000

Method: weights = parameters × bits-per-weight (Q4_K_M ≈ 4.8, Q5_K_M ≈ 5.7, Q6_K ≈ 6.6, Q8_0 ≈ 8.5, FP16 = 16), plus 10% loading overhead, plus KV cache from the verified architecture config (40 layers, 8 KV heads, head dim). Source: HF-verified 2026-10-06 via api (gated=false private=false params=3.66B safetensors.total=3659737600 ctx=131072 license=apache-2.0 repo=ibm-granite/granite-4.2-3b@e459acceac81e5fe67c07d9cfc72329a332e7eb1 layers=40 hidden=2560 heads=40 kv_heads=8 experts=None per_tok=None). active_params_b=3.66 (dense model; total params used). VRAM figures are documented calculations (Q4-class, 0.6 GB per B params), not measurements. No tok/s invented.

Which GPUs can run Granite 4.2 3B locally?

At Q4_K_M with a 4k context, Granite 4.2 3B needs 2.4 GB of VRAM. The lists below are computed live from our GPU database and grouped by how much headroom the card has. Disclosure: CompareAIHardware.com participates in the Amazon Associates program and earns from qualifying purchases through links on this page. Affiliate relationships do not influence our recommendations.

Runs Granite 4.2 3B comfortably (25%+ VRAM headroom)

Can a Mac run Granite 4.2 3B?

Yes — these Apple Silicon machines fit Granite 4.2 3B at Q4_K_M, since macOS lets the GPU use about 75% of unified memory. Generation speed is bound by memory bandwidth, so the GB/s column matters as much as capacity.

Can Granite 4.2 3B run on mini PCs, Jetson, or NPU devices?

These edge and NPU devices from our database have enough memory for Granite 4.2 3B at Q4_K_M. Their memory bandwidth is far below discrete GPUs, so expect a fraction of desktop generation speed.

Which pre-built systems can run Granite 4.2 3B?

These mini PCs and workstations from our database fit Granite 4.2 3B at Q4_K_M. Usable-memory figures are conservative: Windows shares about half of system RAM with the GPU by default (Linux can expose more), macOS lets Apple Silicon GPUs use about 75% of unified memory, and Linux unified-memory systems such as GB10 expose roughly 90%. Generation speed is bound by memory bandwidth, so compare the GB/s column before buying.

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