Radeon RX 7900 XTX for local AI.
With 24 GB it runs Qwen3.8 27B (needs 22.7 GB). 56 models fit.
Memory24 GB
vram
Bandwidth960 GB/s
Higher means faster answers.
PriceFrom about $950
As of 2026-10-02. Check before buying.
By memory option.
| Memory | Usable | Models that fit | Best three |
|---|---|---|---|
| 24 GB | 23 GB | 56 | Qwen3.8 27B (22.7 GB), Qwen3.5 27B (21.5 GB), Qwen3.6 27B (21.5 GB) |
Published speeds.
Measured by others, with sources. Not our tests.
No published speed found yet.
Short answers.
- What is the best local LLM for the Radeon RX 7900 XTX?
- With 24 GB, Qwen3.8 27B (needs 22.7 GB, AA 33.7). 56 of 124 models fit.
- How much does the Radeon RX 7900 XTX cost?
- From about $950 (as of 2026-10-02). 2026 prices are inflated by the memory-chip shortage; check before buying.
Specs from Wikipedia – List of AMD GPUs (spec tables) (2026-10-15). Prices are approximate and dated; 2026 prices are inflated by the memory-chip shortage.
# Radeon RX 7900 XTX for local AI URL: https://insidethemachine.ai/machines/radeon-rx-7900-xtx Type: AMD graphics card. Chip: Navi 31. Memory: vram, options 24 GB. Bandwidth: 960 GB/s. Spec source: https://en.wikipedia.org/wiki/List_of_AMD_graphics_processing_units (2026-10-15). Price: from about $950 (2026-10-02, approximate). Status: previous_gen. ## Which models fit | memory GB | usable GB | models that fit | best 3 | |---|---|---|---| | 24 | 23 | 56 | Qwen3.8 27B (22.7 GB), Qwen3.5 27B (21.5 GB), Qwen3.6 27B (21.5 GB) | ## Published speeds None found yet. Notes: ROCm + Vulkan in llama.cpp. 24GB at ~$950 used. ## Questions **What is the best local LLM for the Radeon RX 7900 XTX?** With 24 GB, Qwen3.8 27B (needs 22.7 GB, AA 33.7). 56 of 124 models fit. **How much does the Radeon RX 7900 XTX cost?** From about $950 (as of 2026-10-02). 2026 prices are inflated by the memory-chip shortage; check before buying.