Build My Rig
High-end

AMD AI Powerhouse

24 GB of AI power at nearly half the NVIDIA price

$1,699

8 components · 24 GB VRAM · 7 compatible models

VRAM

24 GB

TDP

550W

Noise

~38dB

Models

7

Tier

High-end

The Heart of This Build

AMD Radeon RX 7900 XTX 24GB

$849

24GB VRAM at ~$500 less than an RTX 4090. ROCm support has improved significantly. The value play for large model inference.

Buy New
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Buy used: save ~$297
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Parts

8 components, $1,699 total

Estimated prices. Actual retail may vary by region. Some links may earn a small affiliate commission.

The Rest of the Build

cpu

AMD Ryzen 7 7800X3D

8-core AM5 powerhouse. V-Cache helps with system tasks. Well-rounded CPU for the price.

$339
Where to buy
Direct
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motherboard

MSI MAG B650 TOMAHAWK WiFi

B650 board with WiFi 6E. Full PCIe 4.0 x16 for the GPU. Capable VRM for the 7800X3D.

$179
Where to buy
Direct
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ram

32GB DDR5-5600 (2x16GB)

DDR5 for AM5. 32GB minimum for AI work; models load into system RAM before GPU.

$79
Where to buy
Direct
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storage

1TB Samsung 990 Pro NVMe

Fast NVMe for model loading. Samsung reliability. 1TB holds plenty of models.

$89
Where to buy
Direct
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psu

Corsair RM850x 850W 80+ Gold

850W for the 355W TDP RX 7900 XTX. Fully modular. Plenty of headroom.

$129
Where to buy
Direct
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case

Fractal Design North

Beautiful mid-tower with high airflow. Fits the 7900 XTX (287mm). Premium without being expensive.

$119
Where to buy
Direct
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cooler

Thermalright Peerless Assassin 120 SE

Capable budget tower cooler. Keeps the 7800X3D cool without noise.

$35
Where to buy
Direct
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Runs
Compatibility

What This Build Can Run

7 AI models benchmarked on this exact hardware configuration.

Fastest Model
60tok/s

Fast

1Fast (40+ tok/s)
3Usable (12–24 tok/s)
3Slow (<12 tok/s)
Qwen 2.5 Coder 32B Instruct
Q4_K_M
18
DeepSeek R1 Distill Qwen 32B
Q4_K_M
16
Gemma 3 27B
Q4_K_M
15
Stable Diffusion XL 1.0
FP16
0
Stable Diffusion 3.5 Large
FP16
0
Whisper Large V3
FP16
0
Next Step

Upgrade Path

AMD roadmap leads to RX 8000 series with improved ROCm. Alternatively, keep the 7900 XTX and add a second one when multi-GPU ROCm support matures. The 850W PSU can handle it.

Built For

Target Use Cases

ChatCodingAI codingImage genReasoningMulti-purpose

Want to tweak this build?

Open it in the configurator to swap components, check compatibility, and see what models you can run.

Customize This Build

Prices are estimates and may vary by retailer and region.