Arc Pro B70 32GB vs RTX 3060 12GB for Local LLMs

The Arc Pro B70 32GB has about 69% more memory bandwidth (608 vs 360 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 69% faster on the Arc Pro B70 32GB. The Arc Pro B70 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 Arc Pro B70 32GB but not the RTX 3060 12GB: Qwen3.6-35B-A3B (36.0B). MSRP is $999 for the Arc Pro B70 32GB vs $329 for the RTX 3060 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 Arc Pro B70 32GB posts the higher tok/s in 38 rows vs 3. Methodology.

Spec comparison

	Arc Pro B70 32GB	RTX 3060 12GB
Vendor	Intel	NVIDIA
VRAM	32 GB	12 GB
Memory type	GDDR6	GDDR6
Memory bandwidth	608 GB/s	360 GB/s
TDP	225 W	170 W
MSRP (list)	$999	$329
Buy	Search Amazon (affiliate)	MSI GeForce RTX 3060 Ventus 2X 12G OC (affiliate) · More listings

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)	Arc Pro B70 32GB tok/s	Arc Pro B70 32GB fits	RTX 3060 12GB tok/s	RTX 3060 12GB fits	Winner
MiniCPM5-1B	1.08	358.2 est.	Yes	212.1 est.	Yes	Arc Pro B70 32GB
Qwen3.5-2B	2.0	193.5 est.	Yes	114.5 est.	Yes	Arc Pro B70 32GB
Qwen3-Coder-Next	79.7	186.8 est.	No	15.5 est.	No	Arc Pro B70 32GB
Qwen3-Next-80B-A3B-Instruct	81.3	179.7 est.	No	14.9 est.	No	Arc Pro B70 32GB
DeepSeek-R1-0528-Qwen3-8B-layer-mix-bpw-3.8-mlx	2.3	168.2 est.	Yes	99.6 est.	Yes	Arc Pro B70 32GB
Qwen3.6-35B-A3B	36.0	129.0 est.	Yes	71.8 est.	No	Arc Pro B70 32GB
Qwen3.5-35B-A3B	34.7	129.0 est.	Yes	77.0 est.	No	Arc Pro B70 32GB
GLM-4.7-Flash	31.2	129.0 est.	Yes	88.9 est.	No	Arc Pro B70 32GB
Qwen3-30B-A3B-Instruct-2507	30.5	129.0 est.	Yes	92.6 est.	No	Arc Pro B70 32GB
Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16	30.0	129.0 est.	Yes	101.8 est.	No	Arc Pro B70 32GB
Ornith-1.0-35B	35.0	129.0 est.	Yes	72.0 est.	No	Arc Pro B70 32GB
qwen35b-a3b-fable-sft-abliterated	34.7	129.0 est.	Yes	73.1 est.	No	Arc Pro B70 32GB
Llama-3.2-3B-Instruct	3.2	120.9 est.	Yes	122.9 measured	Yes	RTX 3060 12GB
gpt-oss-20b	21.5	107.5 est.	Yes	84.0 measured	No	Arc Pro B70 32GB
gemma-4-26B-A4B-it	25.2	101.8 est.	Yes	101.2 est.	No	Arc Pro B70 32GB

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 Pro B70 32GB	RTX 3060 12GB
Catalog models that fit	39 of 69	18 of 69
Largest exclusive fit	Qwen3.6-35B-A3B (36.0B)	—

Arc Pro B70 32GB details → · RTX 3060 12GB details →