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. 1769 of 2118 indexed models fit at 64K 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 1511vision language 155image 2video 15audio asr 39embedding 26audio tts 21

What fits at 64K context

largest quantization that fits, per model · 1769 of 2118 indexed
ModelBest quantParamsWeightsKVTotal in memoryHeadroomtok/s
GRM-2.6-Plus-0628IQ3_XXS27.8B11.76 GiB1.13 GiB13.50 GiB0.00 GiB10±8.3%
ThinkingCap-Qwen3.6-27BIQ3_XXS27.4B11.76 GiB1.13 GiB13.50 GiB0.00 GiB10±8.3%
Tess-4-27BIQ3_XXS27.8B11.76 GiB1.13 GiB13.50 GiB0.00 GiB10±8.3%
Qwen3.6-35B-A3B-REAM-160-ru-agentMoEQ4_023.6B12.59 GiB0.35 GiB13.50 GiB0.00 GiB35±37%
deepseek-math-7b-instructQ5_K_S6.9B4.48 GiB8.44 GiB13.50 GiB0.00 GiB10±8.3%
deepseek-llm-7b-chatQ5_06.9B4.48 GiB8.44 GiB13.50 GiB0.00 GiB10±8.3%
Janus-Pro-7BI1-Q5_K_S7.4B4.48 GiB8.44 GiB13.49 GiB0.01 GiB10±8.3%
deepseek-coder-7b-instruct-v1.5I1-Q5_K_S6.9B4.48 GiB8.44 GiB13.49 GiB0.01 GiB10±8.3%
Wan2.2-S2V-14BQ4_K_M16.3B12.91 GiB0.00 GiB13.49 GiB0.01 GiB10±8.3%
Aurora-Code-1MoEI1-IQ3_M34.7B12.59 GiB0.35 GiB13.49 GiB0.01 GiB39±37%
Qwen3.5-35B-A3BMoEQ2_K36.0B12.58 GiB0.35 GiB13.49 GiB0.01 GiB39±37%
Qwen3.6-35B-A3BMoEQ2_K36.0B12.58 GiB0.35 GiB13.49 GiB0.01 GiB39±37%
Qwen3.5-9B-The-Defiant-Fable-Uncensored-Heretic-NEO-IMATRIX-MAX-MTPQ4_K_S9.7B12.33 GiB0.56 GiB13.48 GiB0.02 GiB10±8.3%
Skyfall-31B-v4.2IQ2_XXS31.4B9.01 GiB3.80 GiB13.48 GiB0.02 GiB10±8.3%
LFM2-24B-A2BMoEIQ4_NL23.8B12.56 GiB0.35 GiB13.48 GiB0.02 GiB33±37%
Qwen3.5-40B-RoughHouse-Claude-4.6-Opus-Polar-Deckard-Uncensored-Heretic-ThinkingI1-IQ2_XXS39.5B11.17 GiB1.69 GiB13.48 GiB0.02 GiB10±8.3%
Pantheon-Reasoning-27BI1-IQ3_S27.8B11.74 GiB1.13 GiB13.48 GiB0.02 GiB10±8.3%
Qwen3.6-27B-uncensored-heretic-v2-Native-MTP-PreservedI1-IQ3_S27.4B11.74 GiB1.13 GiB13.48 GiB0.02 GiB10±8.3%
Qwen3.6-27B-Fable-Fusion-711-Uncensored-Heretic-NM-DAU-MTPI1-IQ3_S27.8B11.74 GiB1.13 GiB13.48 GiB0.02 GiB10±8.3%
Qwen3.6-27B-Fable-5-ExperimentalI1-IQ3_S27.8B11.74 GiB1.13 GiB13.48 GiB0.02 GiB10±8.3%
Qwable-5-27B-CoderI1-IQ3_S27.8B11.74 GiB1.13 GiB13.48 GiB0.02 GiB10±8.3%
EVE-27b-XENO-HAT-DeepSeek-V4-FlashI1-IQ3_S27.8B11.74 GiB1.13 GiB13.48 GiB0.02 GiB10±8.3%
EVE-27B-XENO-HATI1-IQ3_S27.8B11.74 GiB1.13 GiB13.48 GiB0.02 GiB10±8.3%
Godoter-27BI1-IQ3_S27.8B11.74 GiB1.13 GiB13.48 GiB0.02 GiB10±8.3%
Reasoning-Medical-27BI1-IQ3_S27.8B11.74 GiB1.13 GiB13.48 GiB0.02 GiB10±8.3%
Qwopus3.6-27B-v2-abliteratedI1-IQ3_S27.4B11.74 GiB1.13 GiB13.48 GiB0.02 GiB10±8.3%
Qwen3.6-27B-Uncensored-HauhauCS-Aggressive-BF16I1-IQ3_S27.8B11.74 GiB1.13 GiB13.48 GiB0.02 GiB10±8.3%
Reasoning-Medical0.1-27BI1-IQ3_S27.8B11.74 GiB1.13 GiB13.48 GiB0.02 GiB10±8.3%
Huihui-ThinkingCap-Qwen3.6-27B-abliteratedI1-IQ3_S27.4B11.74 GiB1.13 GiB13.48 GiB0.02 GiB10±8.3%
Semancer-27BI1-IQ3_S27.8B11.74 GiB1.13 GiB13.48 GiB0.02 GiB10±8.3%
Darwin-28B-CoderI1-IQ3_S26.9B11.74 GiB1.13 GiB13.48 GiB0.02 GiB10±8.3%
Qwythos-9B-v2Q5_K_M9.7B12.33 GiB0.56 GiB13.47 GiB0.03 GiB10±8.3%
Rocinante-XL-16B-v1I1-Q4_K_M16.1B9.08 GiB3.80 GiB13.47 GiB0.03 GiB10±8.3%
MathCoder2-CodeLlama-7BQ4_K_L6.7B3.89 GiB9.00 GiB13.47 GiB0.03 GiB10±8.3%
gemma-7bI1-Q4_K_M8.5B4.96 GiB7.88 GiB13.46 GiB0.04 GiB10±8.3%
ERNIE-4.5-21B-A3B-ThinkingQ4_021.8B11.90 GiB0.98 GiB13.46 GiB0.04 GiB10±8.3%
ERNIE-4.5-21B-A3B-PTQ4_021.9B11.90 GiB0.98 GiB13.46 GiB0.04 GiB10±8.3%
Mistral-7B-v0.1KV unresolvedQ8_07.2B10.62 GiB2.25 GiB13.46 GiB0.04 GiB10±8.3%
Qwen3.5-27B-Engineer-Deckard-GeminiI1-IQ3_M27.7B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Qwen3.5-27B-HERETIC-Polaris-Advanced-Thinking-Alpha-uncensoredI1-IQ3_M27.4B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Qwen3.5-27B-Deckard-PKD-Heretic-Uncensored-ThinkingI1-IQ3_M27.4B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Qwen3.6-27B-Heretic2-ThinkingI1-IQ3_M27.4B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Qwen3.6-27B-Uncensored-AggressiveI1-IQ3_M27.4B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Qwen-3.5-Opus-GLM-27BI1-IQ3_M26.9B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Qwen3.6-27B-abliteratedI1-IQ3_M27.4B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
KoQweopus-3.5-27B-experimentalI1-IQ3_M27.8B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Webcoda-AI-27BI1-IQ3_M27.4B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Qwen3.5-27B-imabari-v2I1-IQ3_M27.8B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Huihui-Qwen3.5-27B-abliteratedI1-IQ3_M27.8B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Qwen3.5-27B-uncensored-heretic-v1I1-IQ3_M27.4B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Qwen3.5-27B-Unredacted-MAXI1-IQ3_M27.4B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Qwen3.5-27B-hereticI1-IQ3_M27.4B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Carnice-V2-27bI1-IQ3_M27.4B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Qwen3.5-Queen-27BI1-IQ3_M27.4B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
GRaPE-2-ProI1-IQ3_M27.8B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
ThinkingCap-Qwen3.6-27B-hereticIQ3_M27.4B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Qwen3.5-27B-DerestrictedI1-IQ3_M27.8B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Darwin-28B-REASONI1-IQ3_M26.9B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Huihui-Qwen3.5-27B-Claude-4.6-Opus-abliteratedI1-IQ3_M27.8B11.72 GiB1.13 GiB13.45 GiB0.05 GiB10±8.3%
Qwen3.5-27B-Claude-4.6-Opus-Reasoning-DistilledI1-IQ3_M27.8B11.72 GiB1.13 GiB13.45 GiB0.05 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?
1769 of 2118 indexed open-weight models fit a Apple M3 Pro at 65,536 context with q4_0 KV cache, the largest being GRM-2.6-Plus-0628 at IQ3_XXS. 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.