text model · Granite · macOS
Can I run Granite 4.1 8B on Apple M3 Pro (18GB)?
Yes. Granite 4.1 8B runs on Apple M3 Pro (18GB) at Q4_K_M (~6.8 GB of ~12 GB usable).
Runs at Q4_K_M using ~6.8 GB of ~12 GB usable. You have room for Q8_0 for higher quality.
That figure is at a 4k context and moves about ±15% as context length changes. Apple M3 Pro (18GB) leaves ~5.2 GB of headroom, room to step up to Q8_0 for higher quality.
- Q4_K_M needed
- ~6.8 GB
- Usable on device
- ~12 GB
- Device memory
- 18 GB
- Best quant
- Q4_K_M
Which quant fits
Running cost · estimate
- Power draw
- ~70 W
- Electricity / 1M tokens
- ~$0.19
- Pays for itself after
- ~4,190M tok
At ~$0.15/kWh and the estimated ~15 tok/s, a million generated tokens costs about $0.19 in electricity. Versus a hosted API at ~$0.5 per million tokens, the ~$1,299 Apple M3 Pro (18GB) pays for itself after roughly 4,190 million tokens, so local hardware is mostly a fixed cost, not a per-token one. TDP is the peak draw, so this is an upper bound. Assumptions.
Run it
Loads the Q4_K_M weights.
ollama run granite4.1:8b - Parameters
- 8.8B
- Q4_K_M size
- 5.3 GB
- Q8_0 size
- 9.3 GB
- Context
- 128k
- Ollama tag
- granite4.1:8b
- Memory
- 18 GB unified
- Usable for weights
- ~12 GB
- Power draw
- ~70 W
- Best runtime
- Ollama (llama.cpp Metal backend) / MLX
You could also run
Run Granite 4.1 8B on other hardware
FAQ
Can Apple M3 Pro (18GB) run Granite 4.1 8B?
Yes. Granite 4.1 8B runs on Apple M3 Pro (18GB) at Q4_K_M (~6.8 GB of ~12 GB usable).
How much memory does Granite 4.1 8B need?
Apple M3 Pro (18GB) has room to spare. At Q4_K_M the weights are ~5.3 GB; with KV cache and runtime overhead, budget ~6.8 GB at a 4k context.
What is the best tool to run Granite 4.1 8B on macOS?
LM Studio for a simple setup; mlx-lm for the most speed. vLLM is NOT a Mac tool, it is a CUDA/Linux serving engine. Unified memory is not a fixed VRAM slice; ~70% is usable for weights.
Embed this
A live badge for your model card or README, updated as the data is. [](https://localmodel.run/can-i-run/granite-4.1-8b/apple-m3-18gb) Sources
Weights are measured from GGUF files; KV cache and overhead are computed, so totals can vary ~15% with context and runtime. Any tok/s is a bandwidth estimate. See methodology.