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Apple M4 Max (128GB)

The Apple M4 Max (128GB) uses a unified memory architecture. For reliable local LLM inference without OS memory pressure, this benchmark models a 75% usable allocation (96 GB) with 546 GB/s unified memory bandwidth.

Memory

128 GB

Usable Memory Ceiling

96 GB (75% usable budget)

Bandwidth

546 GB/s

Max Inference Class

70B+ Models (Q4)

TDP

140W

VRAM Scaling by Context Length

Estimated memory requirements as context length increases. Curves crossing above the reference line indicate Out of Memory (OOM).

DeepSeek-R1 14B (14B)DeepSeek-R1 32B (32B)AliceAI Foundation 80B A3B Base (80B (3B active))GLM-5.3 Flash (313.3B (17.3B active))

Precision:

Best Models to Run on Apple M4 Max (128GB)

Inference throughput, memory compatibility, and generation speeds for open-weights LLMs on Apple M4 Max (128GB).

Sort by:

Context:

KV Cache:

RankModelParametersPrecisionTPS (Approx.)TTFTCan Run

#33

Qwen 3.8 27B

27B

INT4
Q8
FP16

27 tok/s

16 tok/s

8 tok/s

~15.9s

~15.9s

~16.0s

#41

Qwen 3.8 Flash

176B (6B active)

INT4

90 tok/s

~3.7s

#48

Agnes 3.0 Flash

33B

INT4
Q8
FP16

23 tok/s

13 tok/s

7 tok/s

~19.3s

~19.4s

~19.4s

#61

Sarvam-105B

106B (10.3B active)

INT4

61 tok/s

~8.1s

#72

K2 Horizon MoVA 36B A4B

36B (4B active)

INT4
Q8
FP16

102 tok/s

74 tok/s

45 tok/s

~3.1s

~3.1s

~3.1s

#75

Ling 3.0 Flash VL

124B (5.5B active)

INT4

93 tok/s

~5.8s

#83

Qwen3.5-27B

27B

INT4
Q8
FP16

27 tok/s

16 tok/s

8 tok/s

~15.9s

~15.9s

~16.0s

#84

Qwen3.5-122B-A10B

122B (10B active)

INT4

48 tok/s

~8.3s

#92

Sarvam-30B

32B (2.4B active)

INT4
Q8
FP16

128 tok/s

100 tok/s

66 tok/s

~2.2s

~2.2s

~2.2s

#94

Qwen3.6 35B A3B

35B (3B active)

INT4
Q8
FP16

117 tok/s

88 tok/s

56 tok/s

~2.5s

~2.5s

~2.5s

#96

Muse Glimmer 30B

30B

INT4
Q8
FP16

25 tok/s

14 tok/s

7 tok/s

~17.6s

~17.6s

~17.7s

#100

Phi-4 Reasoning Plus

14B

INT4
Q8
FP16

36 tok/s

24 tok/s

14 tok/s

~8.4s

~8.4s

~8.4s

#101

MiMo V2 Flash

15B (309B active)

INT4
Q8
FP16

3 tok/s

1 tok/s

1 tok/s

~173.8s

~174.1s

~174.7s

#106

GLM-4.5-Air

106B (12B active)

INT4

18 tok/s

~9.1s

#108

Gemma 4 26B A4B

25.2B (3.8B active)

INT4
Q8
FP16

108 tok/s

78 tok/s

48 tok/s

~2.8s

~2.8s

~2.9s

#109

Gemma 4 12B

11.95B

INT4
Q8
FP16

41 tok/s

28 tok/s

16 tok/s

~7.2s

~7.2s

~7.2s

#113

Qwen3.5-9B

9B

INT4
Q8
FP16

69 tok/s

43 tok/s

23 tok/s

~5.4s

~5.4s

~5.4s

#114

Qwen3.5-35B-A3B

35B (3B active)

INT4
Q8
FP16

117 tok/s

88 tok/s

56 tok/s

~2.5s

~2.5s

~2.5s

#114

Ling 3.0 Flash

124B (5.1B active)

INT4

97 tok/s

~5.6s

#118

K2 Horizon 7B

7B

INT4
Q8
FP16

82 tok/s

53 tok/s

29 tok/s

~4.2s

~4.2s

~4.3s

Inference Capacity

Maximum model parameter class runnable by weight precision.

Context:

4-bit

Q4

70B+ Models

8-bit

Q8

70B Models

16-bit

FP16

32B Models

Fine-Tuning Capacity

Hardware capacity for local training and adapter fine-tuning.

Context Length:

QLoRA

4-bit

70B+ Models

LoRA

16-bit

70B Models

Full Parameter Training

7B-8B Models

Workload Recommendations

Guidance for optimal precision and operational ceilings on Apple M4 Max (128GB).

Inference Sweet Spot

Suitable for 70B parameter models at Q4/Q8 with extended 32k context windows, or high-throughput batching of smaller dense architectures.

Bandwidth & Speed Profile

With 546 GB/s aggregate bandwidth, batch size 1 inference operates in a memory-bandwidth bound regime. Generates approximately 121 tok/s on an 8B Q4 model and 14 tok/s on a 70B Q4 model.

Unified Memory Budget

Modeled with a 75% usable allocation budget to preserve system RAM for macOS and display compositor processes.

Frequently Asked Questions