Mac mini M4 32GB vs Titan Xp 12GB for Local LLMs

The Titan Xp 12GB has about 357% more memory bandwidth (548 vs 120 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 357% faster on the Titan Xp 12GB. The Mac mini M4 32GB fits more of the catalog at Q4/8K — 39 vs 18 of 69 models (32 vs 12 GB VRAM). Largest model that fits the Mac mini M4 32GB but not the Titan Xp 12GB: Qwen3.6-35B-A3B (36.0B). MSRP is $999 for the Mac mini M4 32GB vs $1,200 for the Titan Xp 12GB. 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 (41 shared models), the Titan Xp 12GB posts the higher tok/s in 39 rows vs 2. Methodology.

Spec comparison

	Mac mini M4 32GB	Titan Xp 12GB
Vendor	Apple	NVIDIA
VRAM	32 GB	12 GB
Memory type	LPDDR5X	GDDR5X
Memory bandwidth	120 GB/s	548 GB/s
TDP	155 W	250 W
MSRP (list)	$999	$1,200
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 41 shared models

Model	Params (B)	Mac mini M4 32GB tok/s	Mac mini M4 32GB fits	Titan Xp 12GB tok/s	Titan Xp 12GB fits	Winner
MiniCPM5-1B	1.08	70.7 est.	Yes	322.9 est.	Yes	Titan Xp 12GB
gpt-oss-20b	21.5	21.2 est.	Yes	216.2 est.	No	Titan Xp 12GB
Qwen3.5-2B	2.0	38.2 est.	Yes	174.4 est.	Yes	Titan Xp 12GB
Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16	30.0	25.5 est.	Yes	155.0 est.	No	Titan Xp 12GB
gemma-4-26B-A4B-it	25.2	20.1 est.	Yes	154.1 est.	No	Titan Xp 12GB
DeepSeek-R1-0528-Qwen3-8B-layer-mix-bpw-3.8-mlx	2.3	33.2 est.	Yes	151.6 est.	Yes	Titan Xp 12GB
Qwen3-30B-A3B-Instruct-2507	30.5	25.5 est.	Yes	141.0 est.	No	Titan Xp 12GB
GLM-4.7-Flash	31.2	25.5 est.	Yes	135.3 est.	No	Titan Xp 12GB
Qwen3.5-35B-A3B	34.7	25.5 est.	Yes	117.2 est.	No	Titan Xp 12GB
qwen35b-a3b-fable-sft-abliterated	34.7	25.5 est.	Yes	111.3 est.	No	Titan Xp 12GB
Ornith-1.0-35B	35.0	25.5 est.	Yes	109.6 est.	No	Titan Xp 12GB
Qwen3.6-35B-A3B	36.0	25.5 est.	Yes	109.2 est.	No	Titan Xp 12GB
Llama-3.2-3B-Instruct	3.2	41.3 measured	Yes	109.0 est.	Yes	Titan Xp 12GB
Qwen3-4B-Instruct-2507	4.0	19.1 est.	Yes	87.2 est.	Yes	Titan Xp 12GB
NVIDIA-Nemotron-3-Nano-4B-BF16	4.0	19.1 est.	Yes	87.2 est.	Yes	Titan Xp 12GB

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 mini M4 32GB	Titan Xp 12GB
Catalog models that fit	39 of 69	18 of 69
Largest exclusive fit	Qwen3.6-35B-A3B (36.0B)	—

Mac mini M4 32GB details → · Titan Xp 12GB details →