AMD Radeon RX 7800 XT
AMD Radeon RX 7800 XT
The RX 7800 XT is AMD's mid-range RDNA 3 GPU offering 16 GB of GDDR6 at 624 GB/s bandwidth for a $499 MSRP (now ~$450). It competes directly with the RTX 4070 in gaming, but for local AI, the 16 GB VRAM vs 12 GB gives it a clear edge - it can run Mistral Small 3 at Q5_K_M and Qwen3-30B at Q3_K_M without offloading.
Quick verdict
The RX 7800 XT is arguably the best mid-range local AI GPU for Linux users. 16 GB VRAM at $450 beats any NVIDIA card at this price point for capacity. ROCm support is good on Linux. For Windows users, LM Studio's ROCm support is improving but not yet as seamless as CUDA.
Spec breakdown
- VRAM: 16 GB GDDR6
- Memory bandwidth: 624 GB/s (19.5 Gbps, 256-bit bus)
- TDP: 263 W
- Stream processors: 3,840
- AI accelerators: 120 (RDNA 3)
Real-world AI inference
| Model | Tokens/sec | Source |
|---|---|---|
| Mistral Small 3 Q4_K_M | ~22 tok/s | ROCm community |
| Qwen3-30B Q4_K_M | ~10 tok/s | ROCm |
| Llama 3.1 8B Q4_K_M | ~45 tok/s | Community |
Honest alternatives
- RTX 4060 Ti 16GB (~$450): Same VRAM, slower bus, better software
- RX 7700 XT (~$400): 12 GB, $50 less
- Intel Arc B580 (~$250): 12 GB, incredible value
Frequently asked
Quick answers to common questions
How much VRAM does the AMD Radeon RX 7800 XT have?
The AMD Radeon RX 7800 XT has 16 GB of VRAM with 624 GB/s memory bandwidth. MSRP was $499.
What local AI models can run on the AMD Radeon RX 7800 XT?
The AMD Radeon RX 7800 XT with 16 GB VRAM can run many models depending on quantization. Models up to ~24B params may fit at Q4_K_M. Use our VRAM calculator to check specific models.
Is the AMD Radeon RX 7800 XT good for local AI inference?
AMD Radeon RX 7800 XT is best for gaming, llm-inference, content-creation. With ample VRAM it handles most open models well.
Where can I buy the AMD Radeon RX 7800 XT?
Check our buy links above for the best current prices on Amazon, Newegg, and B&H. Prices vary by retailer and availability.
How does the AMD Radeon RX 7800 XT compare to other GPUs?
AMD Radeon RX 7800 XT has 16 GB VRAM and 624 GB/s bandwidth. It is a mid-to-high-range card capable of running most 7B–30B models. Browse our hardware directory for side-by-side comparisons.
Is the AMD Radeon RX 7800 XT worth buying right now?
The current price is $449 vs the MSRP of $499. The price has dropped below MSRP, making it a good time to buy.
What power supply do I need for the AMD Radeon RX 7800 XT?
The AMD Radeon RX 7800 XT has a TDP of 263W. A standard quality PSU of 650W+ should suffice. Always check the manufacturer's recommendations for your specific build.
Nearby options
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