MacBook Neo A18 Pro 8GB vs H100 80GB SXM5 for Local LLMs

The H100 80GB SXM5 has about 5483% more memory bandwidth (3,350 vs 60 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 5483% faster on the H100 80GB SXM5. The H100 80GB SXM5 fits more of the catalog at Q4/8K — 49 vs 11 of 67 models (80 vs 8 GB VRAM). Largest model that fits the H100 80GB SXM5 but not the MacBook Neo A18 Pro 8GB: Mistral-Medium-3.5-128B (128.0B). MSRP is $0 for the MacBook Neo A18 Pro 8GB vs $30,000 for the H100 80GB SXM5. MSRP is a launch list price, not live retail — Amazon prices move; click through for the current price. Not retail-shoppable: H100 80GB SXM5 (datacenter-class; cloud rental is the realistic way to use it). In the Q4/8K head-to-head below (36 shared models), the H100 80GB SXM5 posts the higher tok/s in 36 rows vs 0. Methodology.

Spec comparison

	MacBook Neo A18 Pro 8GB	H100 80GB SXM5
Vendor	Apple	NVIDIA
VRAM	8 GB	80 GB
Memory type	LPDDR5X	HBM3
Memory bandwidth	60 GB/s	3,350 GB/s
TDP	20 W	700 W
MSRP (list)	$0	$30,000
Buy	Search Amazon	—

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	H100 80GB SXM5 tok/s	H100 80GB SXM5 fits	Winner
MiniCPM5-1B	1.08	70.0 est.	Yes	2914.6 est.	Yes	H100 80GB SXM5
Qwen3.5-2B	2.0	37.8 est.	Yes	1573.9 est.	Yes	H100 80GB SXM5
Qwen3.6-35B-A3B	36.0	2.6 est.	No	1049.3 est.	Yes	H100 80GB SXM5
Qwen3.5-35B-A3B	34.7	2.8 est.	No	1049.3 est.	Yes	H100 80GB SXM5
GLM-4.7-Flash	31.2	2.5 est.	No	1049.3 est.	Yes	H100 80GB SXM5
Qwen3-30B-A3B-Instruct-2507	30.5	3.3 est.	No	1049.3 est.	Yes	H100 80GB SXM5
Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16	30.0	3.5 est.	No	1049.3 est.	Yes	H100 80GB SXM5
Ornith-1.0-35B	35.0	2.7 est.	No	1049.3 est.	Yes	H100 80GB SXM5
Llama-3.2-3B-Instruct	3.2	23.6 est.	Yes	983.7 est.	Yes	H100 80GB SXM5
gpt-oss-20b	21.5	5.7 est.	No	874.4 est.	Yes	H100 80GB SXM5
gemma-4-26B-A4B-it	25.2	3.9 est.	No	828.4 est.	Yes	H100 80GB SXM5
Nanbeige4.2-3B	4.0	19.2 est.	Yes	801.3 est.	Yes	H100 80GB SXM5
Qwen3-4B-Instruct-2507	4.0	18.9 est.	Yes	787.0 est.	Yes	H100 80GB SXM5
NVIDIA-Nemotron-3-Nano-4B-BF16	4.0	18.9 est.	Yes	787.0 est.	Yes	H100 80GB SXM5
Qwen3-4B-Thinking-2507	4.0	18.9 est.	Yes	787.0 est.	Yes	H100 80GB SXM5

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	H100 80GB SXM5
Catalog models that fit	11 of 67	49 of 67
Largest exclusive fit	—	Mistral-Medium-3.5-128B (128.0B)

MacBook Neo A18 Pro 8GB details → · H100 80GB SXM5 details →