Llama 4 Scout
Llama 4 Scout loads in 67 GB at Q4_K_M and is comfortable from 96 GB of memory, Macs included from the MacBook Pro M5 Max 128GB. Below: the full memory math, the cheapest card that runs it well, and the fastest machine we track.
Memory math
KV = fp16 estimate (q8_0 cache roughly halves it). "Comfortable" = weights + KV within the engine's tiered budget (~70-85% of memory).
Hardware snapshot
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Frequently asked questions
How much memory does Llama 4 Scout need?
67 GB for the Q4_K_M weights, plus ~6.0 GB of KV-cache at 16k context — about 73.0 GB total. Comfortable from 96 GB of VRAM or unified memory.
Does Llama 4 Scout run on a Mac?
Yes — from the MacBook Pro M5 Max 128GB (~16 tok/s est.). Unified memory means the RAM budget is the only limit.
What is the cheapest GPU for Llama 4 Scout?
The AMD Ryzen AI Max+ 395 (Strix Halo) is the cheapest tracked card that runs Llama 4 Scout comfortably — ~7 tok/s est. at ~$3,847 used (as of 2026-07-31).
Cite this page
ModelFit: Llama 4 Scout — specs, memory math and hardware verdicts. https://modelfit.io/models/llama4-scout/ (dataset updated 2026-09-03, CC BY 4.0).