The V100 16GB PCIe has about 12% more memory bandwidth (900 vs 800 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 12% faster on the V100 16GB PCIe. The RX 7900 XT 20GB fits more of the catalog at Q4/8K — 31 vs 25 of 73 models (20 vs 16 GB VRAM). Largest model that fits the RX 7900 XT 20GB but not the V100 16GB PCIe: gemma-4-31B-it (30.7B). MSRP is $899 for the RX 7900 XT 20GB 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 V100 16GB PCIe posts the higher tok/s in 31 rows vs 18. Methodology.