Arc B570 10GB vs RTX 3060 12GB for Local LLMs

The Arc B570 10GB has about 6% more memory bandwidth (380 vs 360 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 6% faster on the Arc B570 10GB. The RTX 3060 12GB fits more of the catalog at Q4/8K — 18 vs 17 of 61 models (12 vs 10 GB VRAM). Largest model that fits the RTX 3060 12GB but not the Arc B570 10GB: gemma-3-12b-it (12.2B). MSRP is $219 for the Arc B570 10GB 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 (38 shared models), the two cards split the rows 19–19. Methodology.

Spec comparison

	Arc B570 10GB	RTX 3060 12GB
Vendor	Intel	NVIDIA
VRAM	10 GB	12 GB
Memory type	GDDR6	GDDR6
Memory bandwidth	380 GB/s	360 GB/s
TDP	150 W	170 W
MSRP (list)	$219	$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 38 shared models

Model	Params (B)	Arc B570 10GB tok/s	Arc B570 10GB fits	RTX 3060 12GB tok/s	RTX 3060 12GB fits	Winner
Qwen3-0.6B	0.8	302.3 est.	Yes	286.4 est.	Yes	Arc B570 10GB
gemma-3-1b-it	1.0	241.8 est.	Yes	229.1 est.	Yes	Arc B570 10GB
Llama-3.2-1B-Instruct	1.2	201.5 est.	Yes	190.9 est.	Yes	Arc B570 10GB
Llama-3.2-3B-Instruct	3.2	75.6 est.	Yes	122.9 measured	Yes	RTX 3060 12GB
Qwen3-1.7B	2.0	120.9 est.	Yes	114.5 est.	Yes	Arc B570 10GB
gpt-oss-20b	21.5	104.5 est.	No	84.0 measured	No	Arc B570 10GB
Qwen3-30B-A3B	30.5	68.2 est.	No	93.0 est.	No	RTX 3060 12GB
Qwen3-Coder-30B-A3B-Instruct	30.5	68.2 est.	No	93.0 est.	No	RTX 3060 12GB
Qwen3-30B-A3B-Instruct-2507	30.5	68.2 est.	No	93.0 est.	No	RTX 3060 12GB
GLM-4.7-Flash	31.2	65.4 est.	No	89.3 est.	No	RTX 3060 12GB
Phi-4-mini-instruct	3.8	63.6 est.	Yes	60.3 est.	Yes	Arc B570 10GB
Phi-4-mini-reasoning	3.8	63.6 est.	Yes	60.3 est.	Yes	Arc B570 10GB
gemma-3-4b-it	4.3	62.0 est.	Yes	58.7 est.	Yes	Arc B570 10GB
Qwen3-4B-Instruct-2507	4.0	60.5 est.	Yes	57.3 est.	Yes	Arc B570 10GB
Qwen3-4B-Thinking-2507	4.0	60.5 est.	Yes	57.3 est.	Yes	Arc B570 10GB

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 B570 10GB	RTX 3060 12GB
Catalog models that fit	17 of 61	18 of 61
Largest exclusive fit	—	gemma-3-12b-it (12.2B)

Arc B570 10GB details → · RTX 3060 12GB details →