The Arc B570 10GB has about 98% more memory bandwidth (380 vs 192 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 98% faster on the Arc B570 10GB. The Arc B570 10GB fits more of the catalog at Q4/8K — 17 vs 16 of 69 models (10 vs 8 GB VRAM). Largest model that fits the Arc B570 10GB but not the Tesla P4 8GB: gemma-4-12b-it (11.95B). MSRP is $219 for the Arc B570 10GB vs $80 for the Tesla P4 8GB. 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 (39 shared models), the Arc B570 10GB posts the higher tok/s in 39 rows vs 0. Methodology.