Arc Pro B70 32GB vs RTX 6000 Ada 48GB for Local LLMs
The RTX 6000 Ada 48GB has about 58% more memory bandwidth (960 vs 608 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 58% faster on the RTX 6000 Ada 48GB. The RTX 6000 Ada 48GB fits more of the catalog at Q4/8K — 41 vs 39 of 69 models (48 vs 32 GB VRAM). Largest model that fits the RTX 6000 Ada 48GB but not the Arc Pro B70 32GB: Qwen3-Next-80B-A3B-Instruct (81.3B). MSRP is $999 for the Arc Pro B70 32GB vs $6,800 for the RTX 6000 Ada 48GB. 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 (53 shared models), the RTX 6000 Ada 48GB posts the higher tok/s in 53 rows vs 0. Methodology.