MacBook Pro M4 Max 128GB vs RTX 6000 Ada 48GB for Local LLMs

The RTX 6000 Ada 48GB has about 76% more memory bandwidth (960 vs 546 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 76% faster on the RTX 6000 Ada 48GB. The MacBook Pro M4 Max 128GB fits more of the catalog at Q4/8K — 47 vs 39 of 61 models (128 vs 48 GB VRAM). Largest model that fits the MacBook Pro M4 Max 128GB but not the RTX 6000 Ada 48GB: DeepSeek-V4-Flash (158.1B). MSRP is $4,399 for the MacBook Pro M4 Max 128GB vs $6,800 for the RTX 6000 Ada 48GB. 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 (50 shared models), the RTX 6000 Ada 48GB posts the higher tok/s in 47 rows vs 3. Methodology.

Spec comparison

	MacBook Pro M4 Max 128GB	RTX 6000 Ada 48GB
Vendor	Apple	NVIDIA
VRAM	128 GB	48 GB
Memory type	LPDDR5X	GDDR6
Memory bandwidth	546 GB/s	960 GB/s
TDP	160 W	300 W
MSRP (list)	$4,399	$6,800
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 50 shared models

Model	Params (B)	MacBook Pro M4 Max 128GB tok/s	MacBook Pro M4 Max 128GB fits	RTX 6000 Ada 48GB tok/s	RTX 6000 Ada 48GB fits	Winner
Qwen3-0.6B	0.8	434.3 est.	Yes	763.6 est.	Yes	RTX 6000 Ada 48GB
Qwen3-Next-80B-A3B-Instruct	81.3	115.8 est.	Yes	624.8 est.	No	RTX 6000 Ada 48GB
gemma-3-1b-it	1.0	347.5 est.	Yes	610.9 est.	Yes	RTX 6000 Ada 48GB
Llama-3.2-1B-Instruct	1.2	289.5 est.	Yes	509.1 est.	Yes	RTX 6000 Ada 48GB
Qwen3-1.7B	2.0	173.7 est.	Yes	305.5 est.	Yes	RTX 6000 Ada 48GB
Qwen3-30B-A3B	30.5	115.8 est.	Yes	203.6 est.	Yes	RTX 6000 Ada 48GB
Qwen3-Coder-30B-A3B-Instruct	30.5	115.8 est.	Yes	203.6 est.	Yes	RTX 6000 Ada 48GB
GLM-4.7-Flash	31.2	115.8 est.	Yes	203.6 est.	Yes	RTX 6000 Ada 48GB
Qwen3-30B-A3B-Instruct-2507	30.5	115.8 est.	Yes	203.6 est.	Yes	RTX 6000 Ada 48GB
Qwen3-Coder-Next	79.7	115.8 est.	Yes	203.6 est.	Yes	RTX 6000 Ada 48GB
Llama-3.2-3B-Instruct	3.2	108.6 est.	Yes	190.9 est.	Yes	RTX 6000 Ada 48GB
gpt-oss-20b	21.5	96.5 est.	Yes	169.7 est.	Yes	RTX 6000 Ada 48GB
gpt-oss-120b	120.4	68.1 est.	Yes	169.3 est.	No	RTX 6000 Ada 48GB
Mistral-7B-Instruct-v0.3	7.2	48.3 est.	Yes	166.6 measured	Yes	RTX 6000 Ada 48GB
Phi-4-mini-instruct	3.8	91.4 est.	Yes	160.8 est.	Yes	RTX 6000 Ada 48GB

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

	MacBook Pro M4 Max 128GB	RTX 6000 Ada 48GB
Catalog models that fit	47 of 61	39 of 61
Largest exclusive fit	DeepSeek-V4-Flash (158.1B)	—

MacBook Pro M4 Max 128GB details → · RTX 6000 Ada 48GB details →