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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. 1644 of 2118 indexed models fit at 32K context with f16 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
video 15text 1395vision language 147audio asr 39embedding 26audio tts 21image 1

What fits at 32K context

largest quantization that fits, per model · 1644 of 2118 indexed
ModelBest quantParamsWeightsKVTotal in memoryHeadroomtok/s
Wan2.2-S2V-14BQ4_K_M16.3B12.91 GiB0.00 GiB13.49 GiB0.01 GiB10±8.3%
Llama-3.2-8X3B-MOE-Dark-Champion-Instruct-uncensored-abliterated-18.4BMoEIQ4_XS18.4B9.44 GiB3.50 GiB13.49 GiB0.01 GiB11±37%
Falcon3-10B-InstructQ6_K10.3B7.88 GiB5.00 GiB13.49 GiB0.01 GiB10±8.3%
Olmo-3-7B-InstructQ8_07.3B7.23 GiB5.69 GiB13.49 GiB0.01 GiB10±8.3%
Olmo-3-7B-ThinkQ8_07.3B7.23 GiB5.69 GiB13.49 GiB0.01 GiB10±8.3%
SOLAR-10.7B-Instruct-v1.0-uncensoredQ5_010.7B6.89 GiB6.00 GiB13.48 GiB0.02 GiB10±8.3%
Nous-Hermes-2-SOLAR-10.7BQ5_010.7B6.89 GiB6.00 GiB13.48 GiB0.02 GiB10±8.3%
SOLAR-10.7B-Instruct-v1.0I1-Q5_K_S10.7B6.89 GiB6.00 GiB13.48 GiB0.02 GiB10±8.3%
gemma-2-27b-itIQ1_M27.2B6.23 GiB6.56 GiB13.47 GiB0.03 GiB10±8.3%
diffusiongemma-26B-A4B-it-HERETIC-UncensoredMoEIQ3_S25.8B11.39 GiB1.54 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-Gembrain-X-Core-31BI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-Gembrain-X-31BI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-31B-Isometry-Fabled-PersonaI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Versipellis-31BI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma4-Gutenberg-31BI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
G4-MeroMero-31B-uncensored-hereticI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-Novelist-31BI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Wanabi-Gemma4-31BI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
G4-Alice-v1.2-31BI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Agares-31B-v1I1-IQ1_S30.7B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma4-Gutenberg-31B-HereticI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-Ortenzya-The-Creative-Wordsmith-31B-it-uncensored-hereticI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-Gemsicle-31BI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-Gembrain-31B-it-uncensored-hereticI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Melinoe-Gemma4-31B-VL-hereticI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
G4-MeroMero-31BI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Glistening-Gem-31B-v1.0I1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Melinoe-Gemma4-31B-VLI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-31B-Storymaxxed3I1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Huihui-gemma-4-31B-it-qat-q4_0-unquantized-abliteratedI1-IQ1_S32.7B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-31B-Queen-it-qat-q4_0-unquantizedI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-31B-it-qat-q4_0-unquantized-hereticI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-AssGuard-31BI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
copywriter-gemma4-31bI1-IQ1_S32.7B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-31B-heretic-finetuneI1-IQ1_S30.7B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-Garnet-V2-31B-it-ultra-uncensored-hereticI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-31B-it-abliterated-v3I1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-31B-it-noloopI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Webs-Sejong-31B-v7I1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Lilith-31B-v1.0I1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
JGOS-31B-ThinkI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-31B-MergemaxxedI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
K1-v6-zeroI1-IQ1_S32.7B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-Queen-31B-it-uncensored-hereticI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-Sphinsikus-Chronist-31BI1-IQ1_S31.3B6.67 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-31B-it-hereticI1-IQ1_S31.3B6.66 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma4-31B-Finetuned-V2I1-IQ1_S32.7B6.66 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-31B-storymaxxedI1-IQ1_S31.3B6.66 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-31B-storymaxxed2I1-IQ1_S31.3B6.66 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-31B-it-Grand-Horror-X-INTENSE-HERETIC-UNCENSORED-ThinkingI1-IQ1_S31.3B6.66 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-31B-it-Mystery-Fine-Tune-HERETIC-UNCENSORED-ThinkingI1-IQ1_S31.3B6.66 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-31B-it-The-DECKARD-HERETIC-UNCENSORED-ThinkingI1-IQ1_S31.3B6.66 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Huihui-gemma-4-31B-it-abliterated-v2I1-IQ1_S32.7B6.66 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-Queen-31B-itI1-IQ1_S31.3B6.66 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-31B-it-abliteratedI1-IQ1_S31.3B6.66 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-31b-it-heretic-araI1-IQ1_S31.3B6.66 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Monika-31BI1-IQ1_S31.3B6.66 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Gemma-4-31B-Fable-CoderI1-IQ1_S32.7B6.66 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
gemma-4-31B-anthologyI1-IQ1_S31.3B6.66 GiB6.17 GiB13.47 GiB0.03 GiB10±8.3%
Omni-31B-Turkish-Reasoning-ModelI1-IQ1_S31.3B6.66 GiB6.17 GiB13.47 GiB0.03 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?
1644 of 2118 indexed open-weight models fit a Apple M3 Pro at 32,768 context with f16 KV cache, the largest being Wan2.2-S2V-14B at Q4_K_M. 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.