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Arc A770 16GB vs Mac mini M4 32GB for Local LLMs

The Arc A770 16GB has about 367% more memory bandwidth (560 vs 120 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 367% faster on the Arc A770 16GB. The Mac mini M4 32GB fits more of the catalog at Q4/8K — 38 vs 25 of 61 models (32 vs 16 GB VRAM). Largest model that fits the Mac mini M4 32GB but not the Arc A770 16GB: Mixtral-8x7B-Instruct-v0.1 (46.7B). MSRP is $349 for the Arc A770 16GB 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 (44 shared models), the Arc A770 16GB posts the higher tok/s in 44 rows vs 0. Methodology.

Spec comparison

Arc A770 16GBMac mini M4 32GB
VendorIntelApple
VRAM16 GB32 GB
Memory typeGDDR6LPDDR5X
Memory bandwidth560 GB/s120 GB/s
TDP225 W155 W
MSRP (list)$349$999
BuySearch 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

ModelParams (B)Arc A770 16GB tok/sArc A770 16GB fitsMac mini M4 32GB tok/sMac mini M4 32GB fitsWinner
Qwen3-0.6B0.8445.5 est.Yes95.5 est.YesArc A770 16GB
gemma-3-1b-it1.0356.4 est.Yes76.4 est.YesArc A770 16GB
Llama-3.2-1B-Instruct1.2297.0 est.Yes63.6 est.YesArc A770 16GB
Qwen3-30B-A3B30.5257.2 est.No25.5 est.YesArc A770 16GB
Qwen3-Coder-30B-A3B-Instruct30.5257.2 est.No25.5 est.YesArc A770 16GB
Qwen3-30B-A3B-Instruct-250730.5257.2 est.No25.5 est.YesArc A770 16GB
GLM-4.7-Flash31.2246.9 est.No25.5 est.YesArc A770 16GB
Qwen3-1.7B2.0178.2 est.Yes38.2 est.YesArc A770 16GB
Llama-3.2-3B-Instruct3.2111.4 est.Yes41.3 measuredYesArc A770 16GB
gpt-oss-20b21.599.0 est.Yes21.2 est.YesArc A770 16GB
Phi-4-mini-instruct3.893.8 est.Yes20.1 est.YesArc A770 16GB
Phi-4-mini-reasoning3.893.8 est.Yes20.1 est.YesArc A770 16GB
gemma-3-4b-it4.391.4 est.Yes19.6 est.YesArc A770 16GB
Qwen3-4B-Instruct-25074.089.1 est.Yes19.1 est.YesArc A770 16GB
Qwen3-4B-Thinking-25074.089.1 est.Yes19.1 est.YesArc A770 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

Arc A770 16GBMac mini M4 32GB
Catalog models that fit25 of 6138 of 61
Largest exclusive fit—Mixtral-8x7B-Instruct-v0.1 (46.7B)

Arc A770 16GB details → · Mac mini M4 32GB details →