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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

  • TypeGaming & Entertainment
  • Form FactorTower
  • Power Supply1200W
  • MonitorMonitor not included
  • Operating SystemWindows 11 Home
  • CPU TypeIntel Core Ultra 9
  • 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.

Highlights

  • 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

Specifications

BrandHP
ModelOMEN
TypeGaming & Entertainment
Form FactorTower
Power Supply1200W
MonitorMonitor not included
Operating SystemWindows 11 Home
CPU TypeIntel Core Ultra 9
L3 Cache Per CPU36MB
GPU/VGA TypeGeForce RTX 5090
Graphics InterfaceDedicated Card
Virtual Reality ReadyVR Ready
Memory Capacity128GB DDR5
SSD4 TB
HDDNo
Storage Spec4TB PCIe SSD
Optical Drive TypeNo
Screen SizeNo Screen
WLANWi-Fi 6E AX211
BluetoothBluetooth 5.4
Card ReaderNo
RJ45Yes

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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