RTX A6000 48GB vs Mac mini M4 Pro 64GB for Local LLMs

The RTX A6000 48GB has about 181% more memory bandwidth (768 vs 273 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 181% faster on the RTX A6000 48GB. The Mac mini M4 Pro 64GB fits more of the catalog at Q4/8K — 44 vs 39 of 61 models (64 vs 48 GB VRAM). Largest model that fits the Mac mini M4 Pro 64GB but not the RTX A6000 48GB: Qwen3-Next-80B-A3B-Instruct (81.3B). MSRP is $4,500 for the RTX A6000 48GB vs $2,199 for the Mac mini M4 Pro 64GB. 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 A6000 48GB posts the higher tok/s in 50 rows vs 0. Methodology.

Spec comparison

	RTX A6000 48GB	Mac mini M4 Pro 64GB
Vendor	NVIDIA	Apple
VRAM	48 GB	64 GB
Memory type	GDDR6	LPDDR5X
Memory bandwidth	768 GB/s	273 GB/s
TDP	300 W	155 W
MSRP (list)	$4,500	$2,199
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)	RTX A6000 48GB tok/s	RTX A6000 48GB fits	Mac mini M4 Pro 64GB tok/s	Mac mini M4 Pro 64GB fits	Winner
Qwen3-0.6B	0.8	610.9 est.	Yes	217.2 est.	Yes	RTX A6000 48GB
Qwen3-Next-80B-A3B-Instruct	81.3	499.8 est.	No	57.9 est.	Yes	RTX A6000 48GB
gemma-3-1b-it	1.0	488.7 est.	Yes	173.7 est.	Yes	RTX A6000 48GB
Llama-3.2-1B-Instruct	1.2	407.3 est.	Yes	144.8 est.	Yes	RTX A6000 48GB
Qwen3-1.7B	2.0	244.4 est.	Yes	86.9 est.	Yes	RTX A6000 48GB
Qwen3-30B-A3B	30.5	162.9 est.	Yes	57.9 est.	Yes	RTX A6000 48GB
Qwen3-Coder-30B-A3B-Instruct	30.5	162.9 est.	Yes	57.9 est.	Yes	RTX A6000 48GB
GLM-4.7-Flash	31.2	162.9 est.	Yes	57.9 est.	Yes	RTX A6000 48GB
Qwen3-30B-A3B-Instruct-2507	30.5	162.9 est.	Yes	57.9 est.	Yes	RTX A6000 48GB
Qwen3-Coder-Next	79.7	162.9 est.	Yes	57.9 est.	Yes	RTX A6000 48GB
Llama-3.2-3B-Instruct	3.2	152.7 est.	Yes	54.3 est.	Yes	RTX A6000 48GB
gpt-oss-20b	21.5	135.8 est.	Yes	48.3 est.	Yes	RTX A6000 48GB
gpt-oss-120b	120.4	135.5 est.	No	85.6 est.	No	RTX A6000 48GB
Phi-4-mini-instruct	3.8	128.6 est.	Yes	45.7 est.	Yes	RTX A6000 48GB
Phi-4-mini-reasoning	3.8	128.6 est.	Yes	45.7 est.	Yes	RTX A6000 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

	RTX A6000 48GB	Mac mini M4 Pro 64GB
Catalog models that fit	39 of 61	44 of 61
Largest exclusive fit	—	Qwen3-Next-80B-A3B-Instruct (81.3B)

RTX A6000 48GB details → · Mac mini M4 Pro 64GB details →