Can I Run IBM Granite 4.1 on Apple M3 Max?

Name: LLM Configurator — GPU VRAM Checker
Author: LLM Configurator

Written by Jakub Rusinowski · Last updated July 12, 2026

Yes, comfortably — you'll have ~33.1 GB of headroom running Granite 4.1 30B at FP8 (Q4 est. ~12-15GB, unconfirmed) (30.9375 GB, ~7 tok/s (est.)).

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Apple MacBook Pro M3 Max

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Apple M3 Max Specs

VRAM	64 GB unified memory
Memory Bandwidth	400 GB/s

Granite 4.1 30B on the Apple M3 Max: VRAM by quantization

Quant	VRAM needed	Fits 64 GB?	Max context
F16	61.7 GB	✓ Yes	8K
Q8_0	33.6 GB	✓ Yes	128K
Q6_K	26.3 GB	✓ Yes	128K
Q5_K_M	23 GB	✓ Yes	128K
Q4_K_M	19.8 GB	✓ Yes	128K
Q3_K_M	14.5 GB	✓ Yes	128K
Q2_K	11.6 GB	✓ Yes	128K

VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 64 GB of unified memory. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.

IBM Granite 4.1 Sizes That Fit the Apple M3 Max

Granite 4.1 30B	FP8 (Q4 est. ~12-15GB, unconfirmed) · 30.9375 GB · ~7 tok/s (est.)
Granite 4.1 8B	Q4_K_M · 4.83 GB · ~36 tok/s (est.)
Granite 4.1 3B	Q4_K_M · 1.81125 GB · ~76 tok/s (est.)

Buy vs. rent IBM Granite 4.1

Buy the GPU

~$2,499

Apple M3 Max · MSRP

Rent by the hour

from $0.55/hr

A100 (40 GB) class

At 2 hrs/day, buying (~$2,499) beats renting at $0.55/hr after about 6.3 years.

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Vast.ai $0.55/hr · typical low · varies

Rent on Vast.ai →

Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.