Description
RTX 3090 AI PC for Local LLMs, Machine Learning & AI Development
The RTX 3090 AI PC from Custom Lux PCs delivers professional AI performance for developers, researchers, startups, content creators, and businesses that need powerful local GPU computing. Built around the NVIDIA GeForce RTX 3090 with 24GB of GDDR6X VRAM, this system is optimized for local LLMs, machine learning, AI inference, computer vision, rendering, and other GPU-intensive workloads.
Powered by the Intel Core Ultra 9 285K processor and 128GB of DDR5 6000 MT/s memory, the RTX 3090 AI PC provides the processing power and stability needed for demanding AI projects while remaining an affordable alternative to cloud GPU services and expensive enterprise workstations.
As your AI workloads grow, the system is designed to support an easy upgrade to a Dual RTX 3090 AI PC, giving you additional GPU compute power without replacing your workstation.
RTX 3090 AI PC Specifications
- CPU: Intel Core Ultra 9 285K
- GPU: NVIDIA GeForce RTX 3090 24GB
- GPU Memory: 24GB GDDR6X VRAM
- Expandable: Add a second RTX 3090 for a future Dual RTX 3090 AI PC
- RAM: 128GB DDR5 5600 MT/s
- Motherboard: MSI MPG Z890 Carbon WiFi
- PCIe Configuration: x8/x8 PCIe support for future dual-GPU expansion
- Storage: 2TB PCIe Gen 4 NVMe SSD
- Case: Black Antec C8 with 10 RGB high-airflow fans
- Power Supply: 1300W 80+ Gold PSU with a 10-year manufacturer warranty
- Cooling: 360mm AIO liquid cooler
- Networking: WiFi and Bluetooth
- Operating System: Windows 11 Pro or Ubuntu 24.04 LTS
- Drivers: Fully installed and configured
- Warranty: 3-year Custom Lux PCs warranty plus applicable manufacturer warranties
- Shipping: Free shipping
- Support: Free lifetime technical support
24GB of VRAM for AI & Local LLMs
The defining feature of this RTX 3090 AI PC is its 24GB of dedicated GPU VRAM, making it an excellent platform for memory-intensive AI applications.
Whether you’re building AI software or experimenting with the latest open-source models, this workstation is designed for:
- Local LLM inference
- Machine learning
- Deep learning
- AI agents
- Retrieval-Augmented Generation (RAG)
- Computer vision
- TensorFlow
- PyTorch
- CUDA development
- AI image generation
- AI video generation
- GPU rendering
- Scientific computing
- Data science
- Software development
Depending on the model, quantization, and software configuration, the RTX 3090 AI PC can efficiently run many popular open-source AI models from the Llama, Qwen, Mistral, Mixtral, Phi, Gemma, and DeepSeek families.
Upgrade to a Dual RTX 3090 AI PC Anytime
Unlike many prebuilt systems, this RTX 3090 AI PC is designed with future expansion in mind.
The MSI MPG Z890 Carbon motherboard supports x8/x8 PCIe bifurcation, allowing you to install a second RTX 3090 when your AI projects require additional GPU performance.
This gives you a simple upgrade path from 24GB of GPU VRAM today to a Dual RTX 3090 AI PC with 48GB of total VRAM, helping protect your investment as your workloads continue to grow.
Powered by the Intel Core Ultra 9 285K
At the heart of the RTX 3090 AI PC is the Intel Core Ultra 9 285K, delivering exceptional multi-core performance for AI development, virtualization, rendering, software engineering, and professional content creation.
Combined with 128GB of DDR5 5600 MT/s memory, the system provides the resources needed for:
- Large AI datasets
- Docker containers
- Virtual machines
- Local development environments
- GPU preprocessing
- Professional multitasking
- Machine learning workflows
The Intel platform also offers excellent memory compatibility and stability, making it an outstanding choice for AI professionals.
Ready to Use Right Out of the Box
Every RTX 3090 AI PC is professionally assembled, fully configured, and extensively stress-tested before shipment.
Choose Windows 11 Pro or Ubuntu 24.04 LTS, and your system arrives with:
- NVIDIA graphics drivers installed
- CUDA environment configured
- Full hardware validation
- Plug-and-play setup
- Free shipping
- Free lifetime technical support
- Three-year system warranty
Simply power on your workstation and start building AI applications.
Customize Your RTX 3090 AI PC
Every AI project has different hardware requirements.
Need more RAM? Additional storage? Linux preconfigured? A second RTX 3090? Faster networking? We can customize your RTX 3090 AI PC to match your exact workflow.
Request a custom build or text us at 732-284-6803 to discuss your AI workstation with one of our specialists.
Why Buy Your RTX 3090 AI PC from Custom Lux PCs?
At Custom Lux PCs, we specialize in high-performance AI systems that are built specifically for developers, researchers, startups, and businesses.
Direct Expert Support
Talk directly with a real expert based in the United States by phone, text, or email—no outsourced support and no frustrating ticket systems.
Professionally Built
Every RTX 3090 AI PC is assembled using premium components and validated under demanding workloads to ensure long-term reliability.
Upgrade-Friendly Platform
Our systems are designed to grow with your business, allowing straightforward upgrades as your AI requirements evolve.
Competitive Pricing
We carefully select high-quality components to deliver outstanding AI performance at a competitive price.
Fast Build Times
Most custom AI PCs are built and shipped in approximately one week, depending on component availability and requested customizations.
Order Your RTX 3090 AI PC Today
If you’re looking for an affordable, high-performance AI computer with 24GB of GPU VRAM, the RTX 3090 AI PC from Custom Lux PCs is built to handle today’s demanding AI workloads while giving you a clear upgrade path for tomorrow.
Run local LLMs, build AI agents, develop RAG applications, process large datasets, train machine learning models, accelerate rendering, and create AI-powered applications—all from your own workstation.
Ready to get started? Contact Custom Lux PCs today to configure your RTX 3090 AI PC.
Call or text: 732-284-6803
Read Why Custom Lux PCs is the best choice in AI/ML workstation PCs
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