MacBook Neo A18 Pro 8GB vs Arc A770 16GB for Local LLMs

The Arc A770 16GB has about 833% more memory bandwidth (560 vs 60 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 833% faster on the Arc A770 16GB. The Arc A770 16GB fits more of the catalog at Q4/8K — 22 vs 11 of 67 models (16 vs 8 GB VRAM). Largest model that fits the Arc A770 16GB but not the MacBook Neo A18 Pro 8GB: gemma-4-26B-A4B-it (25.2B). MSRP is $0 for the MacBook Neo A18 Pro 8GB vs $349 for the Arc A770 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 (36 shared models), the Arc A770 16GB posts the higher tok/s in 36 rows vs 0. Methodology.

Spec comparison

	MacBook Neo A18 Pro 8GB	Arc A770 16GB
Vendor	Apple	Intel
VRAM	8 GB	16 GB
Memory type	LPDDR5X	GDDR6
Memory bandwidth	60 GB/s	560 GB/s
TDP	20 W	225 W
MSRP (list)	$0	$349
Buy	Search Amazon	Search Amazon · eBay · Newegg · B&H Photo

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 36 shared models

Model	Params (B)	MacBook Neo A18 Pro 8GB tok/s	MacBook Neo A18 Pro 8GB fits	Arc A770 16GB tok/s	Arc A770 16GB fits	Winner
MiniCPM5-1B	1.08	70.0 est.	Yes	480.8 est.	Yes	Arc A770 16GB
Qwen3.5-2B	2.0	37.8 est.	Yes	259.6 est.	Yes	Arc A770 16GB
Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16	30.0	3.5 est.	No	243.0 est.	No	Arc A770 16GB
Qwen3-30B-A3B-Instruct-2507	30.5	3.3 est.	No	227.7 est.	No	Arc A770 16GB
Qwen3.5-35B-A3B	34.7	2.8 est.	No	191.3 est.	No	Arc A770 16GB
Ornith-1.0-35B	35.0	2.7 est.	No	188.2 est.	No	Arc A770 16GB
Qwen3.6-35B-A3B	36.0	2.6 est.	No	178.7 est.	No	Arc A770 16GB
GLM-4.7-Flash	31.2	2.5 est.	No	177.4 est.	No	Arc A770 16GB
Llama-3.2-3B-Instruct	3.2	23.6 est.	Yes	162.3 est.	Yes	Arc A770 16GB
gpt-oss-20b	21.5	5.7 est.	No	144.2 est.	Yes	Arc A770 16GB
gemma-4-26B-A4B-it	25.2	3.9 est.	No	136.7 est.	Yes	Arc A770 16GB
Nanbeige4.2-3B	4.0	19.2 est.	Yes	132.2 est.	Yes	Arc A770 16GB
Qwen3-4B-Instruct-2507	4.0	18.9 est.	Yes	129.8 est.	Yes	Arc A770 16GB
NVIDIA-Nemotron-3-Nano-4B-BF16	4.0	18.9 est.	Yes	129.8 est.	Yes	Arc A770 16GB
Qwen3-4B-Thinking-2507	4.0	18.9 est.	Yes	129.8 est.	Yes	Arc 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

	MacBook Neo A18 Pro 8GB	Arc A770 16GB
Catalog models that fit	11 of 67	22 of 67
Largest exclusive fit	—	gemma-4-26B-A4B-it (25.2B)

MacBook Neo A18 Pro 8GB details → · Arc A770 16GB details →