Apple · apple

Apple M3 Pro

Apple M3 Pro has 18 GB of unified memory at 154 GB/s — about 12.56 GiB usable after driver and compositor overhead. 1633 of 2118 indexed models fit at 128K context with q4_0 KV. Note only 14 GB of its 18 GB is allocatable to the GPU.

Spec sheet· bandwidth, theoreticalFrom the file· fit from summed bytesPredicted· speed
Memory
18 GB
LPDDR5-6400
Bandwidth
154 GB/s
192-bit bus
Tensor FP16
dense
TDP
KV cachef16q8_0q4_0quantizing the KV cache is a ~2× lever on the dominant term at long context
audio asr 39text 1384video 15vision language 147embedding 26audio tts 21image 1

What fits at 128K context

largest quantization that fits, per model · 1633 of 2118 indexed
ModelBest quantParamsWeightsKVTotal in memoryHeadroomtok/s
Voxtral-Mini-3B-2507BF164.7B8.72 GiB4.22 GiB13.50 GiB0.00 GiB10±8.3%
Laguna-XS-2.1MoEQ2_K_L33.4B11.51 GiB1.44 GiB13.50 GiB0.00 GiB26±37%
Fimbulvetr-11B-v2I1-Q4_K_M10.7B6.16 GiB6.75 GiB13.50 GiB0.00 GiB10±8.3%
Wan2.2-S2V-14BQ4_K_M16.3B12.91 GiB0.00 GiB13.49 GiB0.01 GiB10±8.3%
Llama-3.2-11B-Vision-InstructQ4_K_M10.7B7.28 GiB5.63 GiB13.49 GiB0.01 GiB10±8.3%
AMALIA-9B-0626-DPOQ6_K9.2B7.00 GiB5.91 GiB13.48 GiB0.02 GiB10±8.3%
NVIDIA-Nemotron-Nano-9B-v2Q3_K_M8.9B5.01 GiB7.88 GiB13.48 GiB0.02 GiB10±8.3%
openNemo-9B-abliteratedQ3_K_M8.9B5.01 GiB7.88 GiB13.48 GiB0.02 GiB10±8.3%
Forsaken-Void-12BI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Silver-Siren-ST-12BI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
MN-12B-Runeweaver-RP-RUI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Impish_Bloodmoon_12BI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Wayfarer-2-12BI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Wayfarer-12BI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Muse-12BI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Mistral-Nemo-Base-2407Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Dans-PersonalityEngine-V1.3.0-12bI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Rocinante-X-12B-v1-Heretic-UncensoredI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Mistral-Heretica-12BI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Violet_Twilight-v0.2Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Lumimaid-Magnum-v4-12BQ4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
arcee-fusion-lumaid-12BI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Mistral-NeMo-12B-AbliteratedI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Rocinante-X-12B-v1-absolute-heresyI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Rocinante-X-12B-v1I1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
MN-12b-RP-InkQ4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Mistral-Nemo-2407-12B-Thinking-Claude-Gemini-GPT5.2-Uncensored-HERETICI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Dans-SakuraKaze-V1.0.0-12bI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Mistral-Nemo-Inst-2407-12B-Thinking-Uncensored-HERETIC-HI-Claude-OpusI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Mistral-Nemo-Instruct-2407-12B-Thinking-M-Claude-Opus-High-ReasoningI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Mordant-12B-ThinkI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
MN-12B-Mag-Mell-R1Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Riverfish-Rocinante-12B-SFT-DPOI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
MN-Violet-Lotus-12B-HereticI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Himeyuri-Magnum-12B-HereticMergeI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Kinggaroo-12b-v1I1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Nera_Noctis-12BI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
pixtral-12bQ4_112.7B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Magnum-Picaro-0.7-v2-12bQ4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Peaceful-Days-12BI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
Blissful-Days-12BI1-Q4_112.2B7.26 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
phi-2Q4_K_M2.8B1.67 GiB11.25 GiB13.48 GiB0.02 GiB10±8.3%
Hubble-4B-v1F164.5B8.41 GiB4.50 GiB13.48 GiB0.02 GiB10±8.3%
Aura-4BF164.5B8.41 GiB4.50 GiB13.48 GiB0.02 GiB10±8.3%
magnum-v2-4bF164.5B8.41 GiB4.50 GiB13.48 GiB0.02 GiB10±8.3%
Impish_LLAMA_4BBF164.5B8.41 GiB4.50 GiB13.48 GiB0.02 GiB10±8.3%
Llama-3.1-Minitron-4B-Width-BaseF164.5B8.41 GiB4.50 GiB13.48 GiB0.02 GiB10±8.3%
Ministral-3-14B-Instruct-2512NVFP413.9B7.25 GiB5.63 GiB13.48 GiB0.02 GiB10±8.3%
gemma-4-19B-A4B-it-INSTRUCT-Heretic-UncensoredMoEI1-Q4_K_M19.0B11.45 GiB1.49 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-19B-A4B-it-The-DECKARD-Heretic-Uncensored-ThinkingMoEI1-Q4_K_M19.0B11.45 GiB1.49 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-19b-a4b-it-REAP-hereticMoEI1-Q4_K_M19.0B11.45 GiB1.49 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-19BMoEI1-Q4_K_M19.0B11.45 GiB1.49 GiB13.47 GiB0.03 GiB10±8.3%
L3.2-Rogue-Creative-Instruct-Uncensored-Abliterated-7BQ3_K_M7.5B3.49 GiB9.42 GiB13.47 GiB0.03 GiB10±8.3%
Llama-3.2-8X3B-MOE-Dark-Champion-Instruct-uncensored-abliterated-18.4BMoEQ3_K_L18.4B8.98 GiB3.94 GiB13.47 GiB0.03 GiB11±37%
Darwin-35B-A3B-OpusMoEQ2_K_L36.0B12.21 GiB0.70 GiB13.47 GiB0.03 GiB33±37%
Aurora-Code-1MoEQ2_K_L34.7B12.21 GiB0.70 GiB13.47 GiB0.03 GiB33±37%
grug-35b-v2MoEQ2_K_L35.1B12.21 GiB0.70 GiB13.47 GiB0.03 GiB33±37%
grug-35bMoEQ2_K_L35.1B12.21 GiB0.70 GiB13.47 GiB0.03 GiB33±37%
WorldSim-Opus-3.6-35B-A3BMoEQ2_K_L35.1B12.21 GiB0.70 GiB13.47 GiB0.03 GiB33±37%
Qwen3.6-35B-A3B-AnkoMoEQ2_K_L35.1B12.21 GiB0.70 GiB13.47 GiB0.03 GiB33±37%
From the filePredictedwhat these mean

Speed is modeled, not measured: decode is memory-bandwidth bound, so tokens per second is bytes read per token against achievable bandwidth. Mixture-of-experts models carry a wider band because only the routed experts are read each step, and few have been measured publicly.

Measured on this card

third-party benchmarks, aggregated
WorkloadMedianMiddle 50%Runs
Prompt processing339.31 tok/s305.24343.177
Text generation17.53 tok/s16.9530.517
Benchmarked· n=7

Aggregated from community-submitted runs, so the spread is wide by nature — it covers different models, resolutions, step counts and settings, not one controlled configuration. Read the middle 50% rather than the median alone. These figures are reproduced with attribution from llama.cpp-discussion-4167.

Questions people ask

What AI models can a Apple M3 Pro run?
1633 of 2118 indexed open-weight models fit a Apple M3 Pro at 131,072 context with q4_0 KV cache, the largest being Voxtral-Mini-3B-2507 at BF16. That covers text, vision-language, image, video and speech models.
How much usable memory does a Apple M3 Pro actually have?
Its nameplate is 18 GB, but about 12.56 GiB is available to a model once driver and compositor overhead is accounted for, and only 14 GB of the pool can be allocated to the GPU at all.
Is a Apple M3 Pro fast for local AI?
Its memory bandwidth is 154 GB/s, and that figure — not teraflops — is what governs token generation speed. Capacity decides what you can run; bandwidth decides how fast it runs.