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Black tower desktop with RGB lighting and liquid cooling visible through side panel

HP

HP OMEN 45L Gaming Desktop PC Intel Core Ultra 9 285K RTX 5090 32GB 128GB DDR5 4TB NVMe

SKU CH-0KW4-E80DX

A tower gaming desktop with a 24-core Intel Core Ultra 9 processor, GeForce RTX 5090 graphics with 32GB GDDR7, 128GB DDR5 memory and a 4TB NVMe SSD

  • Screen sizeNo Screen
  • ProcessorIntel Core Ultra 9
  • RAM capacity128 GB DDR5
  • SSD storage4 TB
  • GraphicsGeForce RTX 5090
  • Operating systemWindows 11 Home
  • 24-core Ultra 9 285K hits 5.7 GHz for heavy multitasking
  • RTX 5090 with 32 GB GDDR7 drives 4K gaming and VR
  • 128 GB DDR5 handles large datasets without swapping
  • 4 TB NVMe SSD stores the full library at PCIe speed
  • 360 mm AIO plus 1200 W PSU keeps thermals stable under load

HP OMEN 45L Gaming Desktop

This HP OMEN 45L desktop delivers high-end gaming and AI workloads with an Intel Core Ultra 9 285K processor and GeForce RTX 5090 32GB GDDR7 graphics. It includes 128GB DDR5 memory and a 4TB PCIe NVMe SSD for fast storage. A 1200W power supply and 360mm AIO cooling support sustained performance in a tower chassis.

Suited for 4K gaming and heavy multitasking

The 24-core CPU and 32GB GPU memory handle 4K gaming, content creation, and VR-ready applications. Wi-Fi 6E AX211 and Bluetooth 5.4 provide modern wireless connectivity. Buyers who need a smaller form factor or lower power draw should consider other configurations.

128GB DDR5 memory capacity fixed

The system ships with 128GB DDR5 DIMM installed, defining the total memory available for workloads. Verify this capacity matches your application requirements before purchase. The 4TB PCIe NVMe SSD sets the primary storage limit.

How it compares

Measured against everything we stock in Gaming PCs, at today’s prices. Recalculated every night.

Price $5,189.99
Pricier than about 87% of the 24,925 comparable items (median $2,694.99).
RAM capacity 128 GB DDR5
Higher than about 80% of the 24,338 comparable items (median 32 GB).
SSD storage 4 TB
Higher than about 70% of the 24,468 comparable items (median 2 TB).

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Specifications

Product
Brand nameHP
Model nameOMEN
Product typeGaming & Entertainment
Processor
ProcessorIntel Core Ultra 9
L3 cache per CPU36 MB
Memory
RAM capacity128 GB DDR5
Storage
SSD storage4 TB
Hard driveNo
Storage configuration4 TB PCIe SSD
Optical driveNo
Display
Screen sizeNo Screen
Graphics
GraphicsGeForce RTX 5090
GPU interfaceDedicated Card
VR readyVR Ready
Connectivity
Wi-FiWi-Fi 6E AX211
Bluetooth support5.4
Ports & slots
Memory card readerNo
Ethernet portYes
Power
Power supply1200 W
Size & build
Form factorTower
In the box
Included monitorNot included
Software
Operating systemWindows 11 Home

Questions about this item

What does the 128GB DDR5 capacity mean for actual multitasking and heavy workloads?

With 128GB of DDR5 memory the system can keep many large applications, virtual machines and game assets in fast RAM simultaneously, reducing swaps to the 4TB NVMe SSD during intensive sessions.

How does the Thunderbolt 4 port on this desktop limit external device performance?

The single Thunderbolt 4 connection handles video, data and power over one cable, letting you drive high-resolution displays or attach fast NVMe enclosures without adding a separate dock.

What clearance and power connections does the 360mm AIO liquid cooler require inside the 45L tower?

The 360mm radiator mounts in the chassis with three 120mm fans, fed by the 1200W PSU, and the tower dimensions of 18.5 x 21.9 x 8 inches provide the necessary internal space.

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