The RTX 5090 32GB has about 99% more memory bandwidth (1,792 vs 900 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 99% faster on the RTX 5090 32GB. The RTX 5090 32GB fits more of the catalog at Q4/8K — 43 vs 25 of 73 models (32 vs 16 GB VRAM). Largest model that fits the RTX 5090 32GB but not the V100 16GB PCIe: Qwen3.6-35B-A3B-FP8 (36.0B). MSRP is $1,999 for the RTX 5090 32GB vs $8,000 for the V100 16GB PCIe. MSRP is a launch list price, not live retail — Amazon prices move; click through for the current price. Not retail-shoppable: V100 16GB PCIe (datacenter-class; cloud rental is the realistic way to use it). In the Q4/8K head-to-head below (49 shared models), the RTX 5090 32GB posts the higher tok/s in 49 rows vs 0. Methodology.