The RX 9070 16GB has about 233% more memory bandwidth (640 vs 192 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 233% faster on the RX 9070 16GB. The RX 9070 16GB fits more of the catalog at Q4/8K — 24 vs 16 of 69 models (16 vs 8 GB VRAM). Largest model that fits the RX 9070 16GB but not the Tesla P4 8GB: gemma-4-26B-A4B-it (25.2B). MSRP is $80 for the Tesla P4 8GB vs $549 for the RX 9070 16GB. 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 RX 9070 16GB posts the higher tok/s in 39 rows vs 0. Methodology.