Arc A770 16GB vs Titan X Pascal 12GB for Local LLMs
The Arc A770 16GB has about 17% more memory bandwidth (560 vs 480 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 17% faster on the Arc A770 16GB. The Arc A770 16GB fits more of the catalog at Q4/8K — 24 vs 18 of 69 models (16 vs 12 GB VRAM). Largest model that fits the Arc A770 16GB but not the Titan X Pascal 12GB: gemma-4-26B-A4B-it (25.2B). MSRP is $349 for the Arc A770 16GB 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 Arc A770 16GB posts the higher tok/s in 35 rows vs 6. Methodology.