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Can I run this LLM?

Can a MacBook Pro / Mac Studio M5 Max (128GB) run Llama 3.3 70B Instruct?

Llama · Llama 3.3 Community · estimated for a 128.0 GB machine at 4K context.

Yes — it runs great.

Runs great

Best fit: Llama 3.3 70B Instruct at Q2_K · 26.4 GB weights · 14–21 tok/s on a MacBook Pro / Mac Studio M5 Max (128GB).

Arena Text Overall · style-controlled

1,318Q2_K untested

llama-3.3-70b-instruct · published configuration reference · Q2_K not tested

Arena Text Overall (style-controlled), exact published entry llama-3.3-70b-instruct, 2026-10-08: reference rating 1,318. Published confidence bounds 1,314.5–1,321.5. 54,504 votes. Published llama-3.3-70b-instruct configuration reference. Reasoning mode is not disclosed by the Arena dataset. Tested precision, runtime and sampling settings are not disclosed in this dataset. Selected Q2_K has not been measured by this Arena entry. No quantization quality adjustment is applied.

Snapshot published 2026-10-08 · snapshot imported 2026-10-11 UTC · validated last-good data · manual refresh

Arena leaderboard dataset · Arena / lmarena-ai, Arena Leaderboard Dataset (CC BY 4.0). Selected Text Overall style-controlled rows; field names adapted, ratings unchanged. · dataset CC BY 4.0 · revision e16f90232986

Total memory at 4K context
28.5 GB
Weights + KV cache + runtime overhead
Estimated generation
14–21 tok/s
Estimated first token
~45s

Every quantization on this machine

On small screens, each quant lists every metric below its name. On wider screens, scroll sideways for total memory, speed and fit. Keyboard: focus the table, then use the arrow keys. Quant names stay visible.

Llama 3.3 70B Instruct quantizations on MacBook Pro / Mac Studio M5 Max (128GB), estimated at 4K context. Weights and total memory are shown separately.
QuantWeightsTotal memorySpeedFit
Q2_K26.4 GB28.5 GB14–21 tok/sRuns great
Q3_K_M34.3 GB36.4 GB11–16 tok/sTight / slow
Q4_K_M42.5 GB44.7 GB9–13 tok/sTight / slow
Q5_K_M50.0 GB52.1 GB8–12 tok/sTight / slow
Q6_K57.9 GB60.0 GB7–10 tok/sTight / slow
Q8_075.0 GB77.1 GB5–8 tok/sTight / slow
FP16141.1 GB143.3 GB— not residentWon't fit
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