RTX A6000 48GB vs Titan X Pascal 12GB for Local LLMs
The RTX A6000 48GB has about 60% more memory bandwidth (768 vs 480 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 60% faster on the RTX A6000 48GB. The RTX A6000 48GB fits more of the catalog at Q4/8K — 41 vs 18 of 69 models (48 vs 12 GB VRAM). Largest model that fits the RTX A6000 48GB but not the Titan X Pascal 12GB: Qwen3-Next-80B-A3B-Instruct (81.3B). MSRP is $4,500 for the RTX A6000 48GB vs $1,200 for the Titan X Pascal 12GB. 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 (41 shared models), the RTX A6000 48GB posts the higher tok/s in 35 rows vs 6. Methodology.