Ryzen AI Max 390 64GB vs Mac mini M4 32GB for Local LLMs

The Ryzen AI Max 390 64GB has about 79% more memory bandwidth (215 vs 120 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 79% faster on the Ryzen AI Max 390 64GB. The Ryzen AI Max 390 64GB fits more of the catalog at Q4/8K — 41 vs 39 of 69 models (48 vs 32 GB VRAM). Largest model that fits the Ryzen AI Max 390 64GB but not the Mac mini M4 32GB: Qwen3-Next-80B-A3B-Instruct (81.3B). MSRP is $1,300 for the Ryzen AI Max 390 64GB 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 Ryzen AI Max 390 64GB posts the higher tok/s in 52 rows vs 1. Methodology.

Spec comparison

	Ryzen AI Max 390 64GB	Mac mini M4 32GB
Vendor	AMD	Apple
VRAM	48 GB	32 GB
Memory type	LPDDR5X	LPDDR5X
Memory bandwidth	215 GB/s	120 GB/s
TDP	120 W	155 W
MSRP (list)	$1,300	$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)	Ryzen AI Max 390 64GB tok/s	Ryzen AI Max 390 64GB fits	Mac mini M4 32GB tok/s	Mac mini M4 32GB fits	Winner
MiniCPM5-1B	1.08	126.7 est.	Yes	70.7 est.	Yes	Ryzen AI Max 390 64GB
Qwen3.5-2B	2.0	68.4 est.	Yes	38.2 est.	Yes	Ryzen AI Max 390 64GB
DeepSeek-R1-0528-Qwen3-8B-layer-mix-bpw-3.8-mlx	2.3	59.5 est.	Yes	33.2 est.	Yes	Ryzen AI Max 390 64GB
Qwen3.6-35B-A3B	36.0	45.6 est.	Yes	25.5 est.	Yes	Ryzen AI Max 390 64GB
Qwen3.5-35B-A3B	34.7	45.6 est.	Yes	25.5 est.	Yes	Ryzen AI Max 390 64GB
GLM-4.7-Flash	31.2	45.6 est.	Yes	25.5 est.	Yes	Ryzen AI Max 390 64GB
Qwen3-30B-A3B-Instruct-2507	30.5	45.6 est.	Yes	25.5 est.	Yes	Ryzen AI Max 390 64GB
Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16	30.0	45.6 est.	Yes	25.5 est.	Yes	Ryzen AI Max 390 64GB
Qwen3-Coder-Next	79.7	45.6 est.	Yes	36.9 est.	No	Ryzen AI Max 390 64GB
Ornith-1.0-35B	35.0	45.6 est.	Yes	25.5 est.	Yes	Ryzen AI Max 390 64GB
Qwen3-Next-80B-A3B-Instruct	81.3	45.6 est.	Yes	35.5 est.	No	Ryzen AI Max 390 64GB
qwen35b-a3b-fable-sft-abliterated	34.7	45.6 est.	Yes	25.5 est.	Yes	Ryzen AI Max 390 64GB
Llama-3.2-3B-Instruct	3.2	42.8 est.	Yes	41.3 measured	Yes	Ryzen AI Max 390 64GB
gpt-oss-20b	21.5	38.0 est.	Yes	21.2 est.	Yes	Ryzen AI Max 390 64GB
gpt-oss-120b	120.4	37.9 est.	No	9.4 est.	No	Ryzen AI Max 390 64GB

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

	Ryzen AI Max 390 64GB	Mac mini M4 32GB
Catalog models that fit	41 of 69	39 of 69
Largest exclusive fit	Qwen3-Next-80B-A3B-Instruct (81.3B)	—

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