Mac mini M4 Pro 64GB vs RX 7800 XT 16GB for Local LLMs

The RX 7800 XT 16GB has about 129% more memory bandwidth (624 vs 273 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 129% faster on the RX 7800 XT 16GB. The Mac mini M4 Pro 64GB fits more of the catalog at Q4/8K — 44 vs 25 of 61 models (64 vs 16 GB VRAM). Largest model that fits the Mac mini M4 Pro 64GB but not the RX 7800 XT 16GB: Qwen3-Next-80B-A3B-Instruct (81.3B). MSRP is $2,199 for the Mac mini M4 Pro 64GB vs $499 for the RX 7800 XT 16GB. 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 (44 shared models), the RX 7800 XT 16GB posts the higher tok/s in 38 rows vs 6. Methodology.

Spec comparison

	Mac mini M4 Pro 64GB	RX 7800 XT 16GB
Vendor	Apple	AMD
VRAM	64 GB	16 GB
Memory type	LPDDR5X	GDDR6
Memory bandwidth	273 GB/s	624 GB/s
TDP	155 W	263 W
MSRP (list)	$2,199	$499
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 44 shared models

Model	Params (B)	Mac mini M4 Pro 64GB tok/s	Mac mini M4 Pro 64GB fits	RX 7800 XT 16GB tok/s	RX 7800 XT 16GB fits	Winner
Qwen3-0.6B	0.8	217.2 est.	Yes	496.4 est.	Yes	RX 7800 XT 16GB
gemma-3-1b-it	1.0	173.7 est.	Yes	397.1 est.	Yes	RX 7800 XT 16GB
Llama-3.2-1B-Instruct	1.2	144.8 est.	Yes	330.9 est.	Yes	RX 7800 XT 16GB
Qwen3-30B-A3B	30.5	57.9 est.	Yes	286.6 est.	No	RX 7800 XT 16GB
Qwen3-Coder-30B-A3B-Instruct	30.5	57.9 est.	Yes	286.6 est.	No	RX 7800 XT 16GB
Qwen3-30B-A3B-Instruct-2507	30.5	57.9 est.	Yes	286.6 est.	No	RX 7800 XT 16GB
GLM-4.7-Flash	31.2	57.9 est.	Yes	275.1 est.	No	RX 7800 XT 16GB
Qwen3-1.7B	2.0	86.9 est.	Yes	198.5 est.	Yes	RX 7800 XT 16GB
Llama-3.2-3B-Instruct	3.2	54.3 est.	Yes	124.1 est.	Yes	RX 7800 XT 16GB
gpt-oss-20b	21.5	48.3 est.	Yes	110.3 est.	Yes	RX 7800 XT 16GB
Phi-4-mini-instruct	3.8	45.7 est.	Yes	104.5 est.	Yes	RX 7800 XT 16GB
Phi-4-mini-reasoning	3.8	45.7 est.	Yes	104.5 est.	Yes	RX 7800 XT 16GB
gemma-3-4b-it	4.3	44.5 est.	Yes	101.8 est.	Yes	RX 7800 XT 16GB
Qwen3-4B-Instruct-2507	4.0	43.4 est.	Yes	99.3 est.	Yes	RX 7800 XT 16GB
Qwen3-4B-Thinking-2507	4.0	43.4 est.	Yes	99.3 est.	Yes	RX 7800 XT 16GB

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 Pro 64GB	RX 7800 XT 16GB
Catalog models that fit	44 of 61	25 of 61
Largest exclusive fit	Qwen3-Next-80B-A3B-Instruct (81.3B)	—

Mac mini M4 Pro 64GB details → · RX 7800 XT 16GB details →