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. 1831 of 2118 indexed models fit at 32K 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
text 1571video 15vision language 157audio asr 39image 2audio tts 21embedding 26

What fits at 32K context

largest quantization that fits, per model · 1831 of 2118 indexed
ModelBest quantParamsWeightsKVTotal in memoryHeadroomtok/s
dolphin-2.9.1-mixtral-1x22bMoEI1-Q3_K_L22.2B10.92 GiB1.97 GiB13.50 GiB0.00 GiB6±37%
Wan2.2-S2V-14BQ4_K_M16.3B12.91 GiB0.00 GiB13.49 GiB0.01 GiB10±8.3%
Skyfall-31B-v4.2-hereticI1-Q2_K31.4B10.92 GiB1.90 GiB13.49 GiB0.01 GiB10±8.3%
Skyfall-31B-v4.2I1-Q2_K31.4B10.92 GiB1.90 GiB13.49 GiB0.01 GiB10±8.3%
Qwen3.6-28BMoEI1-Q3_K_M28.2B12.75 GiB0.18 GiB13.48 GiB0.02 GiB40±37%
Qwen3.5-28BMoEI1-Q3_K_M28.7B12.75 GiB0.18 GiB13.48 GiB0.02 GiB40±37%
North-Mini-Code-1.0MoEQ3_K_S30.5B12.63 GiB0.32 GiB13.48 GiB0.02 GiB33±37%
GLM-4.7-Flash-hereticMoEIQ3_XS29.9B12.45 GiB0.46 GiB13.48 GiB0.02 GiB31±37%
OpenBuddy-R1-0528-Distill-Qwen3-32B-Preview0-QATIQ2_M32.8B10.58 GiB2.25 GiB13.47 GiB0.03 GiB10±8.3%
Qwen3-VL-32B-Instruct-ultra-uncensored-hereticI1-IQ2_M33.4B10.58 GiB2.25 GiB13.47 GiB0.03 GiB10±8.3%
Huihui-Qwen3-VL-32B-Instruct-abliteratedI1-IQ2_M33.4B10.58 GiB2.25 GiB13.47 GiB0.03 GiB10±8.3%
KAT-DevIQ2_M32.8B10.58 GiB2.25 GiB13.47 GiB0.03 GiB10±8.3%
ColorGUI-32BI1-IQ2_M33.4B10.58 GiB2.25 GiB13.47 GiB0.03 GiB10±8.3%
Qwen3-VL-32B-InstructIQ2_M33.4B10.58 GiB2.25 GiB13.47 GiB0.03 GiB10±8.3%
Qwen3-32B-UncensoredI1-IQ2_M32.8B10.58 GiB2.25 GiB13.47 GiB0.03 GiB10±8.3%
Qwen3-32B-abliteratedI1-IQ2_M32.8B10.58 GiB2.25 GiB13.47 GiB0.03 GiB10±8.3%
DeepSWE-PreviewIQ2_M32.8B10.58 GiB2.25 GiB13.47 GiB0.03 GiB10±8.3%
AReaL-boba-2-32BI1-IQ2_M32.8B10.58 GiB2.25 GiB13.47 GiB0.03 GiB10±8.3%
Assistant_Pepe_32BI1-IQ2_M32.8B10.58 GiB2.25 GiB13.47 GiB0.03 GiB10±8.3%
GLM-Z1-32B-0414Q2_K_L32.6B12.29 GiB0.54 GiB13.47 GiB0.03 GiB10±8.3%
GLM-4-32B-0414Q2_K_L32.6B12.29 GiB0.54 GiB13.47 GiB0.03 GiB10±8.3%
Huihui-gemma-4-26B-A4B-it-abliteratedMoEUD-IQ4_NL26.5B12.50 GiB0.43 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-A4B-98e-v7-coder-itMoEQ4_K_L20.5B12.50 GiB0.43 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-A4B-98e-v6-coder-itMoEQ4_K_L20.5B12.50 GiB0.43 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-A4B-98e-v7-coderx-itMoEQ4_K_L20.5B12.50 GiB0.43 GiB13.47 GiB0.03 GiB10±8.3%
Qwen3-Coder-REAP-25B-A3BMoEQ3_K_L24.9B12.08 GiB0.84 GiB13.47 GiB0.03 GiB26±37%
Gemma-4-Gembrain-X-Core-31BI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Gemma-4-Gembrain-X-31BI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Gemma-4-31B-Isometry-Fabled-PersonaI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Versipellis-31BI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Gemma4-Gutenberg-31BI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
G4-MeroMero-31B-uncensored-hereticI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Gemma-4-Novelist-31BI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Wanabi-Gemma4-31BI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
G4-Alice-v1.2-31BI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Agares-31B-v1I1-Q2_K30.7B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Gemma4-Gutenberg-31B-HereticI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
gemma-4-Ortenzya-The-Creative-Wordsmith-31B-it-uncensored-hereticI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Gemma-4-Gemsicle-31BI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Gemma-4-Gembrain-31B-it-uncensored-hereticI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Melinoe-Gemma4-31B-VL-hereticI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
G4-MeroMero-31BI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Glistening-Gem-31B-v1.0I1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Melinoe-Gemma4-31B-VLI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Gemma-4-31B-Storymaxxed3I1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Huihui-gemma-4-31B-it-qat-q4_0-unquantized-abliteratedI1-Q2_K32.7B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
gemma-4-31B-Queen-it-qat-q4_0-unquantizedI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
gemma-4-31B-it-qat-q4_0-unquantized-hereticI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Gemma-4-AssGuard-31BI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
copywriter-gemma4-31bI1-Q2_K32.7B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
gemma-4-31B-heretic-finetuneI1-Q2_K30.7B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Gemma-4-Garnet-V2-31B-it-ultra-uncensored-hereticI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
gemma-4-31B-it-abliterated-v3I1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Gemma-4-Harmonia-31B-uncensored-hereticQ2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
gemma-4-31B-it-noloopI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Webs-Sejong-31B-v7I1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
Lilith-31B-v1.0I1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
JGOS-31B-ThinkI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
gemma-4-31B-MergemaxxedI1-Q2_K31.3B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
K1-v6-zeroI1-Q2_K32.7B11.10 GiB1.74 GiB13.46 GiB0.04 GiB10±8.3%
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?
1831 of 2118 indexed open-weight models fit a Apple M3 Pro at 32,768 context with q4_0 KV cache, the largest being dolphin-2.9.1-mixtral-1x22b at I1-Q3_K_L. 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.