Updated June 2026 • AI-Verified • Compatibility Checked
Best $3,500 PC Build for Workstation at 1440P (Intel + NVIDIA) – Mini-ITX
This compact Mini-ITX build delivers exceptional performance for workstation tasks, leveraging Intel's powerful Core Ultra 9 285K and NVIDIA's RTX 5080. It's designed for professionals who demand high productivity and rendering capabilities in a small form factor, excelling at 1440p resolutions.
Socket Match
DDR Match
PSU Capacity
Chassis Clearance
$3,230
Target Budget: $3,500
Expected Real-World Capability
How this configuration handles real-world workloads, based on its specs, thermal tolerances, and price tier.
✓
Professional Workloads
Optimized for high-compute rendering tasks, 3D modeling (Blender, Unreal Engine), software compilations, or local AI inference.
✓
Deep Stability Margin
Sustained peak speeds under 100% compute load with robust VRM power delivery and high-end power efficiency.
✓
GPU Acceleration
CUDA or OpenCL capabilities boost graphics-accelerated applications and preview screens in real-time.
Complete Build Checklist
A quick overview of all 8 components and pricing. Click any part to view details or check live Amazon prices.
| Component | Model Name & Role | Est. Price | Retail Price |
|---|---|---|---|
|
CPU |
Intel Core Ultra 9 285K
Primary Processor
|
$700 |
View on Amazon → |
|
GPU |
NVIDIA GeForce RTX 5080
Graphics Card
|
$1,300 |
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|
Motherboard |
ASUS ROG Strix Z890-I Gaming WiFi
System Board
|
$400 |
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|
Memory |
Corsair Vengeance DDR5-6000 CL30 64GB (2x32GB)
RAM
|
$250 |
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|
Storage |
Samsung 990 Pro 2TB NVMe PCIe 5.0 SSD
Primary Storage
|
$200 |
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|
PSU |
Corsair SF850L 850W 80+ Gold SFX-L Fully Modular PSU
Power Supply Unit
|
$180 |
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|
CPU Cooler |
Arctic Liquid Freezer III 240 AIO
CPU Liquid Cooler
|
$100 |
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|
Case |
Cooler Master NR200P Mini-ITX Case
Chassis
|
$100 |
View on Amazon → |
| Estimated Build Total | $3,230 |
Shop Setup on Amazon → |
|
Component Deep Dive
Why we selected each of these 8 parts for this build and how they fit into the compatibility ecosystem.
Intel Core Ultra 9 285K
Primary Processor
The Core Ultra 9 285K is Intel's top-tier workstation CPU for June 2026, offering exceptional multi-core performance and strong single-core speeds crucial for demanding workstation applications and 1440p productivity.
$700
Local pricing varies
NVIDIA GeForce RTX 5080
Graphics Card
The RTX 5080 provides outstanding performance for 1440p workstation tasks, including rendering, video editing, and AI acceleration, while also being highly capable for gaming. It offers a significant upgrade over the 5070 Ti within the budget.
$1,300
Local pricing varies
ASUS ROG Strix Z890-I Gaming WiFi
System Board
A premium Mini-ITX motherboard specifically designed for Intel's Core Ultra 200 series, offering robust power delivery, excellent connectivity with Wi-Fi 7, and support for high-speed DDR5 memory and PCIe 5.0 storage, essential for a high-performance workstation in a compact form factor.
$400
Local pricing varies
Corsair Vengeance DDR5-6000 CL30 64GB (2x32GB)
RAM
64GB of fast DDR5 memory is ideal for demanding workstation applications, allowing for smooth multitasking and handling of large datasets. The 6000 MT/s speed with CL30 latency offers a great balance of performance and stability.
$250
Local pricing varies
Samsung 990 Pro 2TB NVMe PCIe 5.0 SSD
Primary Storage
A 2TB PCIe 5.0 NVMe SSD provides lightning-fast storage for the operating system, applications, and large project files, significantly reducing load times and improving overall system responsiveness for workstation tasks.
$200
Local pricing varies
Corsair SF850L 850W 80+ Gold SFX-L Fully Modular PSU
Power Supply Unit
An 850W SFX-L power supply provides ample power headroom for the Core Ultra 9 285K and RTX 5080, even under heavy workstation loads. Its 80+ Gold efficiency ensures reliable and quiet operation, and the fully modular design simplifies cable management in a compact Mini-ITX case.
$180
Local pricing varies
Arctic Liquid Freezer III 240 AIO
CPU Liquid Cooler
The Arctic Liquid Freezer III 240 is a high-performance AIO cooler known for its excellent thermal dissipation, crucial for keeping the powerful Intel Core Ultra 9 285K cool under sustained workstation loads within the confines of a Mini-ITX case.
$100
Local pricing varies
Cooler Master NR200P Mini-ITX Case
Chassis
The Cooler Master NR200P is a highly popular and versatile Mini-ITX case, offering excellent compatibility for large GPUs and 240mm AIOs despite its compact size. Its thoughtful design ensures good airflow, which is essential for a high-performance workstation build.
$100
Local pricing varies
System Compatibility Verification
Every full build passes a strict validation run before publication. Here are the status check reports:
CPU Socket Match
Verifies that the motherboard's socket (e.g. AM5 or LGA1851) matches the designated CPU precisely.
Verified
Memory Gen Match
Verifies that the CPU memory controller and motherboard slots support the same DDR standard (DDR4 or DDR5).
Verified
PSU Capacity
Ensures the chosen power supply capacity matches the cumulative peak load of the components with safety buffer.
Verified
Chassis Dimensions
Verifies that the motherboard layout fits the case, and GPU length/cooler height clear the internal chassis clearances.
Verified
This Mini-ITX build prioritizes high-end Intel-NVIDIA performance for workstation tasks. The Cooler Master NR200P provides excellent compatibility for a 240mm AIO and a full-sized GPU like the RTX 5080.
Note: Cross-referencing specifications on product boxes during unboxing is always recommended before tearing open plastic wraps.
Compatibility Notes
This Mini-ITX build prioritizes high-end Intel-NVIDIA performance for workstation tasks. The Cooler Master NR200P provides excellent compatibility for a 240mm AIO and a full-sized GPU like the RTX 5080.
Upgrade Path
The primary upgrade path for this build would involve moving to a higher-tier GPU like an RTX 5090 when it becomes available, assuming power and thermal limits are respected within the Mini-ITX case. For storage, adding another high-speed NVMe PCIe 5.0 SSD is an easy option. The 64GB of DDR5 RAM is already substantial, but future applications might benefit from even higher capacities or faster speeds if supported by the motherboard's BIOS updates.
Tradeoffs
To achieve this level of performance within a Mini-ITX form factor and the $3500 budget, some compromises were made. While the RTX 5080 is a formidable GPU, it's not the absolute top-tier offering, balancing cost with performance. The choice of a 240mm AIO is excellent for a compact build, but a larger 360mm AIO or custom loop might offer slightly better thermal headroom in a larger case. However, for the NR200P, the selected cooler is optimal.
FAQ
What kind of tasks is this PC best suited for?
This build is specifically optimized for workstation tasks such as video editing, 3D rendering, CAD, and complex simulations, while also providing an excellent gaming experience at 1440p.
How does a Mini-ITX case handle high-end components and thermals?
The Cooler Master NR200P is an excellent Mini-ITX case known for its compact size and good airflow, allowing it to comfortably house a 240mm AIO and a full-sized GPU like the RTX 5080 without significant thermal issues.
Is the 850W PSU enough for these components?
The Corsair SF850L 850W PSU is more than sufficient for the Intel Core Ultra 9 285K and NVIDIA RTX 5080, providing ample headroom for stable operation and future upgrades.
Can this build handle 4K gaming or productivity?
While the build is primarily designed for 1440p, the RTX 5080 is capable of handling many games at 4K resolution with respectable frame rates, especially with DLSS 4 enabled. For workstation tasks, 4K monitors will benefit from the high VRAM and processing power.