Can I Run Inkling (NVFP4) on Apple M3 Ultra?

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

Written by Jakub Rusinowski · Last updated August 15, 2026

Not at NVFP4 (4-bit) — that needs 562.5 GB and the Apple M3 Ultra has 512 GB. Drop to Q3_K_M and it fits in 432.8 GB, with up to 64K of context.

The numbers

Model	Inkling (NVFP4)
Parameters	1T
Quantization	NVFP4 (4-bit)
VRAM needed	562.5 GB
Apple M3 Ultra VRAM	512 GB
Verdict	Runs at a lower quant
Fits at	Q3_K_M (432.8 GB)
Max context	64K

What to do next

Quantize to Q3_K_M. That is the cheapest fix — it costs some quality but no money.

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Running Inkling (NVFP4) on this card:

Apple Mac Studio M3 Ultra

512 GB VRAM · 60 W board power

2026 prices are volatile — check the current listing.

Check price on Amazon

Won't fit — rent Inkling (NVFP4) instead

Inkling (NVFP4) needs ~563 GB but this GPU has 512 GB. Rent a 8× H100 (640 GB)-class GPU by the hour instead of buying one:

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RunPod $23.12/hr

Rent on RunPod →

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

Other Inkling sizes on the Apple M3 Ultra

Inkling (BF16) — runs at a lower quant (2000.0 GB)

All Inkling sizes on the Apple M3 Ultra | VRAM calculator for Inkling (NVFP4) | Apple M3 Ultra GPU page | Check your hardware