OwnRig

Codestral 22B on Apple M3 Pro (18GB Unified)

Apple M3 Pro (18GB Unified) cannot run Codestral 22B at any quantization level. The 18 GB of VRAM is insufficient.

Model Size

22.2B

Device VRAM

18 GB

Bandwidth

150 GB/s

Quantizations Tested

1

Performance by Quantization

Each row shows Codestral 22B performance at a different quality level on Apple M3 Pro (18GB Unified).

QuantizationSpeedTTFTFits in VRAMRatingConfidence
Q3_K_M✗ OffloadNot Viableestimated

Notes

Q3_K_M

Q3 10.3GB + context overhead exceeds 14GB effective. Doesn't fit.

About Codestral 22B

Codestral 22B (22.2B) is a coding, ai coding, ai building model. Mistral's dedicated coding model. Strong at code completion and generation across 80+ languages. Fits on a single 16GB GPU at Q3/Q4. Non-production license limits commercial use.

View all Codestral 22B hardware options →

About Apple M3 Pro (18GB Unified)

Apple M3 Pro (18GB Unified) has 18 GB at 150 GB/s. Available in MacBook Pro 14", MacBook Pro 16".

See all models Apple M3 Pro (18GB Unified) can run →

Source: MLX performance estimates (2026-03-15)

Data last updated: 2026-03-01