The H100 80GB SXM5 has about 451% more memory bandwidth (3,350 vs 608 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 451% faster on the H100 80GB SXM5. The H100 80GB SXM5 fits more of the catalog at Q4/8K — 50 vs 39 of 69 models (80 vs 32 GB VRAM). Largest model that fits the H100 80GB SXM5 but not the Arc Pro B70 32GB: Qwen3.5-122B-A10B (122.0B). MSRP is $999 for the Arc Pro B70 32GB vs $30,000 for the H100 80GB SXM5. MSRP is a launch list price, not live retail — Amazon prices move; click through for the current price. Not retail-shoppable: H100 80GB SXM5 (datacenter-class; cloud rental is the realistic way to use it). In the Q4/8K head-to-head below (53 shared models), the H100 80GB SXM5 posts the higher tok/s in 53 rows vs 0. Methodology.