Macs for local AI

Answer: Buy by unified memory, not just chip name. Most local LLM desks want 24–32GB (M4 Pro mini or used M2 Pro mini). For models that will not fit a 24GB GPU, look at 64GB+ Studio. GPUs still win raw tokens/sec — see Mac vs GPU.

Fair values updated 2026-07-26 · Methodology

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Mac mini M4 (16GB)

M4 · 16GB unified · Mac mini

27% over fair

Fair value

$550

eBay low BIN

$700

Range

$480 – $650

Entry local AI Mac. Fine for 7B–8B class models via Ollama/MLX. Not ideal if you want 30B+ resident — step up RAM.

Mac mini M4 Pro (24GB)

M4 Pro · 24GB unified · Mac mini

45% over fair

Fair value

$1,200

eBay low BIN

$1,740

Range

$1,050 – $1,400

Sweet spot for many local LLM users: 24GB unified memory, quiet, low wattage. Strong MLX/Ollama inference for mid-size models. X community default for 'private AI on a desk'.

Mac mini M4 Pro (48GB)

M4 Pro · 48GB unified · Mac mini

62% over fair

Fair value

$1,700

eBay low BIN

$2,747

Range

$1,500 – $2,000

48GB unified memory rivals workstation VRAM for model size without a discrete GPU. Best mini config for larger local models if budget allows.

Mac mini M2 Pro (32GB)

M2 Pro · 32GB unified · Mac mini

53% over fair

Fair value

$950

eBay low BIN

$1,450

Range

$800 – $1,150

Used-market favorite: 32GB unified memory often cheaper than new high-RAM M4 configs. Excellent value for local LLMs if you find a clean unit.

Mac Studio M2 Max (64GB)

M2 Max · 64GB unified · Mac Studio

104% over fair

Fair value

$1,800

eBay low BIN

$3,675

Range

$1,500 – $2,200

64GB opens larger models and longer context than any 24GB GPU. Used Studios with high RAM are the secondary-market play for serious local AI without NVIDIA.

Mac Studio M2 Ultra (64GB)

M2 Ultra · 64GB unified · Mac Studio

63% over fair

Fair value

$2,400

eBay low BIN

$3,900

Range

$2,000 – $2,900

Ultra bandwidth + 64GB for heavy local inference. Check eBay carefully for config (base Ultra often ships with less RAM — buy the listed memory tier).

Mac Studio M2 Ultra (128GB)

M2 Ultra · 128GB unified · Mac Studio

111% over fair

Fair value

$3,800

eBay low BIN

$8,000

Range

$3,200 – $4,500

Whale config: 128GB unified memory for large models that will not fit on consumer GPUs. Low volume, high AOV, pure secondary market.