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Compatibility Report

Llama 4 Scout on Apple M4 Max (128GB Unified)

M4 Max (128GB Unified) runs Llama 4 Scout at Q8_0 — 4 tok/s due to limited memory bandwidth. Slow but functional — see all options below.

Model Size

109B

Device VRAM

128 GB

Bandwidth

546 GB/s

Quantization

Q8_0

Benchmarks

Performance by Quantization

OwnRig currently has one published compatibility entry for Llama 4 Scout on Apple M4 Max (128GB Unified) at Q8_0. This is the best supported pairing we can stand behind today.

QuantizationSpeedTTFTFits in VRAMRatingConfidence
Q8_04 tok/s4561ms✓ YesMarginalestimated

Notes

Q8_0

Estimated from llama-3-3-70b benchmarks. MoE architecture improves throughput vs. dense equivalent.

About Llama 4 Scout

Llama 4 Scout (109B) is a chat, reasoning, multi-purpose model. Large MoE model (~109B total, ~17B active per token; 16 experts, 2 active). Multimodal (text and image) with an enormous advertised context window (10M tokens); practical local runs are usually capped by VRAM and tooling far below that. MoE loads the full weight set for common local inference paths. Not a consumer GPU model: even Q4_K_M needs ~60GB VRAM. Expect H100-class or dual A100 hardware for practical deployment. Do not recommend to RTX 4090 or Mac users.

View all Llama 4 Scout hardware options →

About Apple M4 Max (128GB Unified)

Apple M4 Max (128GB Unified) has 128 GB at 546 GB/s. Available in MacBook Pro 16", Mac Studio.

See all models Apple M4 Max (128GB Unified) can run →

Estimate method: Estimated from comparable model benchmarks. Reference hardware source: github.com (2026-03-14)

Performance varies by driver version, inference engine, quantization method, context length, and system configuration. Figures shown are estimates based on community benchmarks and may not reflect your exact setup. Product names are trademarks of their respective owners. OwnRig is independent and not affiliated with any hardware or AI model provider.