RX 7900 XT
80 AI models fit in 20 GB VRAM at Q4 native. 5 more run with CPU offloading. Real benchmarks below.
llama.cpp 0.2.x · CUDA 12 · Ubuntu 22.04 · Prices verified on Amazon · methodology →
Execution Context
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Full Specifications
AMD · 2022-12
| VRAM | 20 GB GDDR6 |
| Bandwidth | 800 GB/s |
| FP16 TFLOPS | 51.5 |
| AI Score | 60 / 140 |
| CUDA Cores | 5,376 |
| TDP | 315 W |
| PCIe | Gen 4 |
| Slots | 2.5 |
| Power Connector | 2x 8-pin |
| Price Band | Gama media |
| Released | 2022-12 |
AI Benchmarks
Real inference measurements — llama.cpp Q4_K_M
| Task | Result |
|---|---|
| Llama 1B Q4 | 400 tok/s |
| Llama 3B Q4 | 168 tok/s |
| Llama 7B Q4 | 65 tok/s |
| Llama 13B Q4 | 37 tok/s |
| Llama 30B Q4 | 19 tok/s |
| Llama 70B Q4 | Offload or multi-GPU |
| Stable Diffusion 512px | 4.2s / img |
| Whisper Large RTF | 0.5x |
RTF < 1.0 = faster than real time. For Stable Diffusion and Whisper lower is better; for tokens/s higher is better.
Compare RX 7900 XT with another GPU
Is an upgrade worth it? Compare specs and real benchmarks side by side.
Open comparator →Compatible AI Models — RX 7900 XT
80 models run fully in VRAM · 5 with CPU offloading
Flux.1 Dev
Whisper Large V3
Stable Diffusion 3.5 Large
FLUX.2 Dev
Qwen2.5-Coder 32B
DeepSeek R1 Distill 32B
Qwen2.5 32B
Stable Diffusion 3.5 Medium
Show all 80 compatible models →
Also runs with CPU offloading (5)
- Llama 3.1 70B 20 GB Q2 How to install →
- Mixtral 8x7B 14 GB Q2 How to install →
- Hermes 3 70B 20 GB Q2 How to install →
- Nous Hermes 2 Mixtral 8x7B 13 GB Q2 How to install →
- Phi-3.5 MoE 11 GB Q2 How to install →
RX 7900 XT · Amazon
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RX 7900 XT for Local AI
La RX 7900 XT con 20GB de GDDR6 es una opción equilibrada para IA local. Puede correr modelos 7B y 13B en Q4 sin problemas, y modelos 7B en FP16. Es ideal para usuarios que quieren una experiencia fluida con los modelos más populares como Llama 3.1 8B, Mistral 7B, Phi-4 o Qwen2.5 14B.
Los benchmarks reales muestran 65 tokens/segundo en Llama 7B Q4. Para generación de imágenes, Stable Diffusion XL y SD 3.5 Medium caben perfectamente. Whisper Large V3 para transcripción de audio también es compatible.
Con 20GB de VRAM tienes acceso a 80 modelos completos y 5 adicionales con offloading parcial. Usa la calculadora de VRAM para ver las opciones de cuantización disponibles para cada modelo.
Plan your full AI build
RX 7900 XT · 20 GB VRAM — configure PSU, RAM, storage and check compatible models.
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Not sure which model to run on your RX 7900 XT?
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