Arc Pro B70 32GB vs RTX 4070 Ti Super 16GB for Local LLMs

The RTX 4070 Ti Super 16GB has about 11% more memory bandwidth (672 vs 608 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 11% faster on the RTX 4070 Ti Super 16GB. The Arc Pro B70 32GB fits more of the catalog at Q4/8K — 39 vs 24 of 69 models (32 vs 16 GB VRAM). Largest model that fits the Arc Pro B70 32GB but not the RTX 4070 Ti Super 16GB: Qwen3.6-35B-A3B (36.0B). MSRP is $999 for the Arc Pro B70 32GB vs $799 for the RTX 4070 Ti Super 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 (44 shared models), the RTX 4070 Ti Super 16GB posts the higher tok/s in 39 rows vs 5. Methodology.

Spec comparison

	Arc Pro B70 32GB	RTX 4070 Ti Super 16GB
Vendor	Intel	NVIDIA
VRAM	32 GB	16 GB
Memory type	GDDR6	GDDR6X
Memory bandwidth	608 GB/s	672 GB/s
TDP	225 W	285 W
MSRP (list)	$999	$799
Buy	Search 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

Model	Params (B)	Arc Pro B70 32GB tok/s	Arc Pro B70 32GB fits	RTX 4070 Ti Super 16GB tok/s	RTX 4070 Ti Super 16GB fits	Winner
MiniCPM5-1B	1.08	358.2 est.	Yes	396.0 est.	Yes	RTX 4070 Ti Super 16GB
Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16	30.0	129.0 est.	Yes	338.2 est.	No	RTX 4070 Ti Super 16GB
Qwen3-30B-A3B-Instruct-2507	30.5	129.0 est.	Yes	307.7 est.	No	RTX 4070 Ti Super 16GB
GLM-4.7-Flash	31.2	129.0 est.	Yes	295.3 est.	No	RTX 4070 Ti Super 16GB
Qwen3.5-35B-A3B	34.7	129.0 est.	Yes	255.7 est.	No	RTX 4070 Ti Super 16GB
qwen35b-a3b-fable-sft-abliterated	34.7	129.0 est.	Yes	242.8 est.	No	RTX 4070 Ti Super 16GB
Ornith-1.0-35B	35.0	129.0 est.	Yes	239.1 est.	No	RTX 4070 Ti Super 16GB
Qwen3.6-35B-A3B	36.0	129.0 est.	Yes	238.4 est.	No	RTX 4070 Ti Super 16GB
Qwen3.5-2B	2.0	193.5 est.	Yes	213.8 est.	Yes	RTX 4070 Ti Super 16GB
Llama-3.2-3B-Instruct	3.2	120.9 est.	Yes	199.0 measured	Yes	RTX 4070 Ti Super 16GB
Qwen3-Coder-Next	79.7	186.8 est.	No	51.5 est.	No	Arc Pro B70 32GB
DeepSeek-R1-0528-Qwen3-8B-layer-mix-bpw-3.8-mlx	2.3	168.2 est.	Yes	185.9 est.	Yes	RTX 4070 Ti Super 16GB
Qwen3-Next-80B-A3B-Instruct	81.3	179.7 est.	No	49.6 est.	No	Arc Pro B70 32GB
gpt-oss-20b	21.5	107.5 est.	Yes	118.8 est.	Yes	RTX 4070 Ti Super 16GB
gemma-4-26B-A4B-it	25.2	101.8 est.	Yes	112.5 est.	Yes	RTX 4070 Ti Super 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 Pro B70 32GB	RTX 4070 Ti Super 16GB
Catalog models that fit	39 of 69	24 of 69
Largest exclusive fit	Qwen3.6-35B-A3B (36.0B)	—

Arc Pro B70 32GB details → · RTX 4070 Ti Super 16GB details →