# Granite 4.1 3B: RAM and VRAM requirements

> Granite 4.1 3B is a 3.4B Granite model. At Q4_K_M it needs about **3.3 GB** to run and fits **40 of 40** tracked devices. Minimum to run: Apple M1 (8GB).

Last validated: 2026-08-03. Sources: Ollama, HuggingFace GGUF repos, vendor specs.

## Memory by quantization
| Quant | On disk | To run (4k context) |
| --- | --- | --- |
| Q4_K_M | 2.1 GB | ~3.3 GB |
| Q8_0 | 3.6 GB | ~4.8 GB |
| FP16 | 6.8 GB | ~8 GB |

Memory = weights + KV cache + ~0.8 GB runtime overhead, and varies ±15% with context length.

## Will it run on my device?
- **Apple M1 (8GB)** (8 GB): Yes, it runs (room for Q8_0)
- **iPhone 17** (8 GB): Yes, it runs
- **iPhone 17 Pro** (12 GB): Yes, it runs (room for FP16)
- **16GB RAM Laptop (CPU/iGPU only)** (16 GB): Yes, it runs (room for FP16)
- **Google Pixel 10 Pro** (16 GB): Yes, it runs (room for FP16)
- **Nvidia GeForce RTX 3090 (24GB)** (24 GB): Yes, it runs (room for FP16)
- **Apple M4 Pro (48GB)** (48 GB): Yes, it runs (room for FP16)
- **Apple M3 Ultra (256GB)** (256 GB): Yes, it runs (room for FP16)

Full table of all 40 devices: https://localmodel.run/model/granite-4.1-3b

## How to run
Quickest path: `ollama run granite4.1:3b`. On Mac, LM Studio (ships MLX) is fastest; on Linux, Ollama for chat or vLLM to serve; on Windows, LM Studio or Ollama.

## Details
- Parameters: 3.4B
- Default context: 128k tokens
- License: Apache-2.0 (commercial use: yes)
- Released: 2026-04
- HuggingFace: 339,225 downloads/mo, 100 likes

## FAQ
### How much VRAM or RAM does Granite 4.1 3B need?
About 3.3 GB at Q4_K_M (weights 2.1 GB + KV cache + overhead) at a 4k context. Budget ~4.8 GB for Q8_0.
### Can Granite 4.1 3B run on a laptop?
Yes. Granite 4.1 3B fits on a 16 GB laptop or Mac at Q4_K_M, and runs on Apple Silicon or a 12 GB+ GPU comfortably.
### Can I use Granite 4.1 3B commercially?
Yes, Apache-2.0 permits commercial use.

Sources: https://huggingface.co/ibm-granite/granite-4.1-3b, https://ollama.com/library/granite4.1/tags
More: https://localmodel.run/model/granite-4.1-3b