AMD Radeon RX 7900 XTX — Local LLM Performance & Compatibility

Written by Jakub Rusinowski · Last updated July 12, 2026

AMD's answer to the RTX 4090. 24 GB VRAM at a lower price. ROCm support is improving. Works great with Ollama on Linux. Slightly slower than RTX 4090 due to ROCm overhead.

Technical Specifications

VRAM24 GB
Memory Bandwidth960 GB/s
TDP355 W
ArchitectureRDNA 3 Navi 31
Release Year2022
MSRP at Launch$999
Inference Speed (Llama 3.1 8B Q4_K_M)54–112 tok/s (estimated)
Inference Speed (Llama 3.3 70B Q4_K_M)Does not fit — needs ~44 GB of 24 GB usable
Buy This HardwareAMD Radeon RX 7900 XTX 24GB — 24 GB VRAM · 355 W board powerDeploy in the Cloud NowRTX 4090 on RunPod — from $0.34/hr · rate checked 2026-07

or compare on Vast.ai from $0.35/hr (typical low · varies)

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AMD Radeon RX 7900 XTX 24GB
24 GB VRAM · 355 W board power
2026 prices are volatile — check the current listing.
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LLMs Compatible with 24 GB VRAM

All models below run comfortably in 24 GB VRAM with Q4_K_M quantization.

Llama 3.1 FamilyLlama 3.1 8B Instruct · 6 GB VRAM · Q4_K_M · ollama run llama3.1
DeepSeek R1DeepSeek R1 Distill Qwen 32B · 20 GB VRAM · Q4_K_M · ollama run deepseek-r1:32b
Qwen 3Qwen 3 32B · 21 GB VRAM · Q4_K_M · ollama run qwen3:32b
Gemma 3Gemma 3 27B Instruct · 17 GB VRAM · Q4_K_M · ollama run gemma3:27b
Mistral Small 3.1Mistral Small 3.1 24B · 15 GB VRAM · Q4_K_M · ollama run mistral-small3.1
Phi-4 FamilyPhi-4 (14B) · 9 GB VRAM · Q4_K_M · ollama run phi4

Best Use Cases

Quick Start with Ollama

Install Ollama then run the recommended model for this GPU:

ollama run deepseek-r1:32b

FAQ

Can the AMD Radeon RX 7900 XTX run local LLMs?

Yes — the AMD Radeon RX 7900 XTX has 24 GB VRAM and runs AMD's answer to the RTX 4090. 24 GB VRAM at a lower price. ROCm support is improving. Works great with Ollama on Linux.

How fast is the AMD Radeon RX 7900 XTX for AI inference?

The AMD Radeon RX 7900 XTX is estimated to run Llama 3.1 8B at 54–112 tok/s with Q4_K_M quantization. Llama 3.3 70B does not fit: it needs about 44 GB against 24 GB usable. These are modelled estimates, not measurements — see /en/methodology.

What LLMs can I run on 24 GB VRAM?

With 24 GB you can run: Llama 3.1 Family, DeepSeek R1, Qwen 3, Gemma 3, Mistral Small 3.1. Use Ollama for the easiest setup: ollama run deepseek-r1:32b.

Can I Run It? — AMD Radeon RX 7900 XTX

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