Arc Pro B70 32GB vs Mac mini M4 32GB for Local LLMs

The Arc Pro B70 32GB has about 407% more memory bandwidth (608 vs 120 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 407% faster on the Arc Pro B70 32GB. Both fit the same number of catalog models at Q4/8K (39 of 69; 32 vs 32 GB VRAM). MSRP is $999 for the Arc Pro B70 32GB vs $999 for the Mac mini M4 32GB. 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 (53 shared models), the Arc Pro B70 32GB posts the higher tok/s in 53 rows vs 0. Methodology.

Spec comparison

	Arc Pro B70 32GB	Mac mini M4 32GB
Vendor	Intel	Apple
VRAM	32 GB	32 GB
Memory type	GDDR6	LPDDR5X
Memory bandwidth	608 GB/s	120 GB/s
TDP	225 W	155 W
MSRP (list)	$999	$999
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 53 shared models

Model	Params (B)	Arc Pro B70 32GB tok/s	Arc Pro B70 32GB fits	Mac mini M4 32GB tok/s	Mac mini M4 32GB fits	Winner
MiniCPM5-1B	1.08	358.2 est.	Yes	70.7 est.	Yes	Arc Pro B70 32GB
Qwen3.5-2B	2.0	193.5 est.	Yes	38.2 est.	Yes	Arc Pro B70 32GB
Qwen3-Coder-Next	79.7	186.8 est.	No	36.9 est.	No	Arc Pro B70 32GB
Qwen3-Next-80B-A3B-Instruct	81.3	179.7 est.	No	35.5 est.	No	Arc Pro B70 32GB
DeepSeek-R1-0528-Qwen3-8B-layer-mix-bpw-3.8-mlx	2.3	168.2 est.	Yes	33.2 est.	Yes	Arc Pro B70 32GB
Qwen3.6-35B-A3B	36.0	129.0 est.	Yes	25.5 est.	Yes	Arc Pro B70 32GB
Qwen3.5-35B-A3B	34.7	129.0 est.	Yes	25.5 est.	Yes	Arc Pro B70 32GB
GLM-4.7-Flash	31.2	129.0 est.	Yes	25.5 est.	Yes	Arc Pro B70 32GB
Qwen3-30B-A3B-Instruct-2507	30.5	129.0 est.	Yes	25.5 est.	Yes	Arc Pro B70 32GB
Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16	30.0	129.0 est.	Yes	25.5 est.	Yes	Arc Pro B70 32GB
Ornith-1.0-35B	35.0	129.0 est.	Yes	25.5 est.	Yes	Arc Pro B70 32GB
qwen35b-a3b-fable-sft-abliterated	34.7	129.0 est.	Yes	25.5 est.	Yes	Arc Pro B70 32GB
Llama-3.2-3B-Instruct	3.2	120.9 est.	Yes	41.3 measured	Yes	Arc Pro B70 32GB
gpt-oss-20b	21.5	107.5 est.	Yes	21.2 est.	Yes	Arc Pro B70 32GB
gemma-4-26B-A4B-it	25.2	101.8 est.	Yes	20.1 est.	Yes	Arc Pro B70 32GB

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

	Arc Pro B70 32GB	Mac mini M4 32GB
Catalog models that fit	39 of 69	39 of 69
Largest exclusive fit	—	—

Arc Pro B70 32GB details → · Mac mini M4 32GB details →