RTX 3080 10GB vs Titan X Pascal 12GB for Local LLMs
The RTX 3080 10GB has about 58% more memory bandwidth (760 vs 480 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 58% faster on the RTX 3080 10GB. The Titan X Pascal 12GB fits more of the catalog at Q4/8K — 18 vs 17 of 69 models (12 vs 10 GB VRAM). Largest model that fits the Titan X Pascal 12GB but not the RTX 3080 10GB: OLMo-2-1124-13B-Instruct (13.7B). MSRP is $699 for the RTX 3080 10GB 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 (39 shared models), the RTX 3080 10GB posts the higher tok/s in 39 rows vs 0. Methodology.