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

HP

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

SKU CH-5RK7-WXA2T

Tower gaming desktop with Intel Core Ultra 9 285K, GeForce RTX 5090 32GB GDDR7 graphics, 128GB DDR5 memory, 4TB PCIe NVMe SSD, 1200W PSU, 360mm AIO cooling and Wi-Fi 6E

  • Screen sizeNo Screen
  • ProcessorIntel Core Ultra 9
  • RAM capacity128 GB DDR5
  • SSD storage4 TB
  • GraphicsGeForce RTX 5090
  • Operating systemWindows 11 Pro
  • Intel Core Ultra 9 285K with 24 cores and 5.7 GHz boost for heavy multitasking
  • GeForce RTX 5090 32GB GDDR7 graphics for 4K gaming and VR
  • 128GB DDR5 memory keeps large workloads responsive
  • 4TB PCIe NVMe SSD stores the full library with fast loads
  • 360 mm AIO liquid cooling and 1200W PSU sustain peak performance

HP OMEN 45L Gaming Desktop

This HP OMEN 45L tower is built for high-end gaming and AI workloads. It ships with a 15th Gen Intel Core Ultra 9 285K processor featuring 24 cores and 36MB cache, paired with an NVIDIA GeForce RTX 5090 graphics card equipped with 32GB GDDR7 memory. The system includes 128GB of DDR5 RAM and a 4TB PCIe NVMe SSD running Windows 11 Pro.

Setup checks before ordering

Verify that your display supports HDMI, DisplayPort or Thunderbolt 4 inputs to match the rear I/O panel. Ensure your network environment can use Wi-Fi 6E AX211 or wired RJ-45 for full connectivity. The 1200W power supply requires a compatible mains outlet and sufficient circuit capacity. Confirm physical space for a chassis measuring 18.5 by 21.9 by 8 inches.

Build quality and daily connections

A 360mm AIO liquid cooler handles thermal loads for the 24-core CPU while RGB fans provide internal airflow. The black tower chassis weighs 46lb and uses a tower form factor for standard component layout. Front and rear ports include six USB 2.0 ports, one USB 3.2 Type-C, Thunderbolt 4, HDMI, three DisplayPort outputs and a headphone/microphone combo jack. A Dockztorm USB hub is included for additional peripheral expansion.

How it compares

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

Price $5,081.99
Pricier than about 86% 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 Pro

Questions about this item

Does the HP OMEN 45L include a monitor or do I need to buy one separately?

The system ships without a monitor; you will need to purchase a display separately and connect it via the HDMI or three DisplayPort outputs on the RTX 5090 graphics card.

Which memory configuration is installed in this model?

This unit comes with 128GB of DDR5 DIMM memory already fitted across the motherboard slots, so no additional RAM purchase is required for the advertised specification.

What does the 5.7GHz maximum turbo frequency mean for actual gaming performance?

The Intel Core Ultra 9 285K can boost up to 5.7GHz on its performance cores, giving high single-thread speed that helps drive high frame rates in CPU-bound titles when paired with the RTX 5090 32GB GDDR7 GPU.

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