RX 7900 XTX 24GB vs Titan X Pascal 12GB for Local LLMs
The RX 7900 XTX 24GB has about 100% more memory bandwidth (960 vs 480 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 100% faster on the RX 7900 XTX 24GB. The RX 7900 XTX 24GB fits more of the catalog at Q4/8K — 35 vs 18 of 69 models (24 vs 12 GB VRAM). Largest model that fits the RX 7900 XTX 24GB but not the Titan X Pascal 12GB: Qwen3.6-35B-A3B (36.0B). MSRP is $999 for the RX 7900 XTX 24GB 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 RX 7900 XTX 24GB posts the higher tok/s in 38 rows vs 3. Methodology.