Mac Studio M2 Ultra 192GB vs MacBook Pro M4 Max 128GB for Local LLMs

The Mac Studio M2 Ultra 192GB has about 47% more memory bandwidth (800 vs 546 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 47% faster on the Mac Studio M2 Ultra 192GB. The Mac Studio M2 Ultra 192GB fits more of the catalog at Q4/8K — 50 vs 47 of 61 models (192 vs 128 GB VRAM). Largest model that fits the Mac Studio M2 Ultra 192GB but not the MacBook Pro M4 Max 128GB: Qwen3-235B-A22B (235.1B). MSRP is $6,999 for the Mac Studio M2 Ultra 192GB vs $4,399 for the MacBook Pro M4 Max 128GB. MSRP is a launch list price, not live retail — Amazon prices move; click through for the current price. In the Q4/8K head-to-head below (59 shared models), the Mac Studio M2 Ultra 192GB posts the higher tok/s in 52 rows vs 7. Methodology.

Spec comparison

	Mac Studio M2 Ultra 192GB	MacBook Pro M4 Max 128GB
Vendor	Apple	Apple
VRAM	192 GB	128 GB
Memory type	LPDDR5	LPDDR5X
Memory bandwidth	800 GB/s	546 GB/s
TDP	370 W	160 W
MSRP (list)	$6,999	$4,399
Buy	Search Amazon (affiliate)	Search Amazon (affiliate)

MSRP is the launch list price, not live retail. Buy links are Amazon affiliate links — the price after you click is the live price.

Q4 / 8K head-to-head — top 15 of 59 shared models

Model	Params (B)	Mac Studio M2 Ultra 192GB tok/s	Mac Studio M2 Ultra 192GB fits	MacBook Pro M4 Max 128GB tok/s	MacBook Pro M4 Max 128GB fits	Winner
Qwen3-0.6B	0.8	636.4 est.	Yes	434.3 est.	Yes	Mac Studio M2 Ultra 192GB
gemma-3-1b-it	1.0	509.1 est.	Yes	347.5 est.	Yes	Mac Studio M2 Ultra 192GB
Llama-3.2-1B-Instruct	1.2	424.2 est.	Yes	289.5 est.	Yes	Mac Studio M2 Ultra 192GB
Qwen3-1.7B	2.0	254.5 est.	Yes	173.7 est.	Yes	Mac Studio M2 Ultra 192GB
Qwen3-30B-A3B	30.5	169.7 est.	Yes	115.8 est.	Yes	Mac Studio M2 Ultra 192GB
Qwen3-Coder-30B-A3B-Instruct	30.5	169.7 est.	Yes	115.8 est.	Yes	Mac Studio M2 Ultra 192GB
GLM-4.7-Flash	31.2	169.7 est.	Yes	115.8 est.	Yes	Mac Studio M2 Ultra 192GB
Qwen3-30B-A3B-Instruct-2507	30.5	169.7 est.	Yes	115.8 est.	Yes	Mac Studio M2 Ultra 192GB
Qwen3-Next-80B-A3B-Instruct	81.3	169.7 est.	Yes	115.8 est.	Yes	Mac Studio M2 Ultra 192GB
Qwen3-Coder-Next	79.7	169.7 est.	Yes	115.8 est.	Yes	Mac Studio M2 Ultra 192GB
Llama-3.2-3B-Instruct	3.2	159.1 est.	Yes	108.6 est.	Yes	Mac Studio M2 Ultra 192GB
Phi-4-mini-instruct	3.8	134.0 est.	Yes	91.4 est.	Yes	Mac Studio M2 Ultra 192GB
Phi-4-mini-reasoning	3.8	134.0 est.	Yes	91.4 est.	Yes	Mac Studio M2 Ultra 192GB
gemma-3-4b-it	4.3	130.5 est.	Yes	89.1 est.	Yes	Mac Studio M2 Ultra 192GB
Qwen3-4B-Instruct-2507	4.0	127.3 est.	Yes	86.9 est.	Yes	Mac Studio M2 Ultra 192GB

est. = bandwidth-based estimate; measured = curated real benchmark that overrides the estimate. Fits = weights + KV(8K) + 1 GB overhead ≤ 95% of VRAM.

Fit coverage at Q4 / 8K

	Mac Studio M2 Ultra 192GB	MacBook Pro M4 Max 128GB
Catalog models that fit	50 of 61	47 of 61
Largest exclusive fit	Qwen3-235B-A22B (235.1B)	—

Mac Studio M2 Ultra 192GB details → · MacBook Pro M4 Max 128GB details →