The Arc B570 10GB has about 40% more memory bandwidth (380 vs 272 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 40% faster on the Arc B570 10GB. Both fit the same number of catalog models at Q4/8K (17 of 61; 10 vs 8 GB VRAM). MSRP is $219 for the Arc B570 10GB vs $299 for the RTX 4060 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 (38 shared models), the Arc B570 10GB posts the higher tok/s in 38 rows vs 0. Methodology.