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OMEN 45L Gaming Desktop GT22-1455xt, Windows 11 Home, Intel® Core™ i9, 16GB RAM, NVIDIA® GeForce RTX™ 4090

OMEN 45L Gaming Desktop GT22-1455xt, Windows 11 Home, Intel® Core™ i9, 16GB RAM, NVIDIA® GeForce RTX™ 4090

Energy Star
EPEAT
ENERGY STAR | Home

DiscontinuedThis product has been discontinued.

ColorBlack, glass side panel, dark chrome logo
  • Windows 11 Home
  • 13th Generation Intel® Core™ i9 processor
  • NVIDIA® GeForce RTX™ 4090 (24 GB GDDR6X dedicated)
  • 16 GB memory; 1 TB HDD storage; 1 TB SSD storageSee all Specs

Can't find what you are looking for?

Product # 33T66AA#ABA
Engineered for Sustainability
6% back in HP Rewards
Built for extreme performance, the OMEN by HP 45L Gaming Desktop PC is designed for gaming from the ground up. Powered by the latest Intel® Processor[1], the OMEN by HP gaming desktop takes cooling to incredible heights with a unique cooling chamber. Created for easy tool-less upgradeability with industry standard components to meet your gaming needs.
OMEN by HP 45L Gaming Desktop GT22-1455t

Operating system

Windows 11 Home

Processor

Intel® Core™ i9-13900K (up to 5.8 GHz with Intel® Turbo Boost Technology, 36 MB L3 cache, 24 cores, 32 threads)[6,7]

Graphics

Discrete: NVIDIA® GeForce RTX™ 4090 (24 GB GDDR6X dedicated)

Memory

Kingston FURY 16 GB DDR5-5200 MT/s XMP RGB Heatsink (2 x 8 GB)

Maximum memory

Supports up to 128 GB max system memory

Memory slots

4 DIMM

Storage

1 TB WD Black PCIe® Gen4 NVMe™ TLC M.2 SSD[21]

Secondary storage

1 TB 7200 rpm SATA HDD

Network interface

Integrated 10/100/1000 GbE LAN

Wireless technology

Intel® Wi-Fi 6E AX211 (2x2) and Bluetooth® 5.3 wireless card (supporting gigabit data rate)[11,12,13]

Power supply

1200 W 80 Plus Gold certified ATX power supply

External I/O Ports

Front : 2 USB Type-A 5Gbps signaling rate (Battery Charging 1.2, HP Sleep and Charge); 2 USB 2.0 Type-A; 1 headphone/microphone combo; 1 microphone
Rear : 1 USB Type-C® 10Gbps signaling rate; 1 USB Type-C® 5Gbps signaling rate; 2 USB Type-A 10Gbps signaling rate; 2 USB Type-A 5Gbps signaling rate; 2 USB 2.0 Type-A; 1 audio-in; 1 audio-out; 1 microphone; 1 RJ-45[19]

Expansion slots

1 PCIe x16; 1 PCIe x4; 3 M.2 (2 PCIe x4 for SSD, 1 for WLAN)

Video connector

1 HDMI;3 DisplayPort™

Audio Features

5.1 surround sound; Omen Audio Control Support DTS:X® Ultra[28]

Energy efficiency

EPEAT® Gold registered
ENERGY STAR® certified

Color

Black, glass side panel, dark chrome logo

Keyboard

HP 310 Black Wired Keyboard and mouse combo

Dimensions (W X D X H)

8.03 x 18.5 x 21.85 in

Weight

49.82 lb

Warranty

1-year limited hardware warranty. Additional information available at www.support.hp.com; 1-year limited technical support for software and initial setup (from date of purchase)

Software included

McAfee Online Protection 30-day trial
1 month trial for new Microsoft 365 customers[24]

System Coolers

360 mm RGB liquid cooler

System Fan

3 x 120 mm aRGB front fans

Sustainable Impact Specifications

Water based paint[41]

Chipset

Intel® Z790

recommended accessories

PATENTED
COOLING,
EXTREME
PERFORMANCE

OMEN 45L Gaming Desktop PC

  CUSTOMIZE

MASSIVE
UPGRADEABILITY

Built for extreme performance, and easy toolless upgradeability. The OMEN 45L is a one stop, can't stop, shop for DIY performance mastery.

OMEN LIGHT STUDIO

Easily personalize your lighting options using a variety of effects like ambient, wave, interactive and more.

Internals may vary.

RTX.
IT'S ON.

Up to

NVIDIA® GeForce
RTX™ 4090

Experience ultra-high performance gaming, incredibly detailed virtual worlds, unprecedented productivity, and new ways to create.

HYPERREALISTIC. HYPERFAST.

With the power of RTX 40 Series and third-gen RT Cores, you can experience incredibly detailed virtual worlds like never before.

NVIDIA DLSS 3

Powered by the new fourth-gen Tensor Cores and Optical Flow Accelerator on GeForce RTX 40 Series GPUs, DLSS 3 uses AI to create additional frames and improve image quality.

DEFINE
THE CUTTING
EDGE

Up to

INTEL® CORE™ i9

Be everything you want to be, in-game and out with optimized performance and new features. Play harder and work smarter with Intel® Core™ Processors.

DEFINE
THE CUTTING
EDGE

Up to

INTEL® CORE™ i9

Be everything you want to be, in-game and out with optimized performance and new features. Play harder and work smarter with Intel® Core™ Processors.

Up to

KINGSTONG FURY 64 GB DDR5-5200 MHZ XMP RGB HEATSINK RAM (4 x 16 GB)

With its higher bandwidth, everything from multi-tasking to playing games gets a performance boost.

Up to

2 TB WD BLACK PCIe® GEN4 NVMe™ M.2 SSD

PCIe-based flash storage is up to 10x faster than a traditional hard drive.

Play your way with the latest in PC gaming performance.

Up to

KINGSTONG FURY 64 GB DDR5-5200 MHZ XMP RGB HEATSINK RAM (4 x 16 GB)

Designed to run more efficiently and more reliably at faster speeds.

Up to

1TB WD BLACK PCIe® GEN4 NVMe™ TLC M.2 SSD

PCIe-based flash storage is up to 10x faster than a traditional hard drive.

DTS: X ULTRA
TECHNOLOGY

By producing authentic, spatially accurate 3D sound through any headset, this technology offers specially tuned audio modes for different game types.

EFFORTLESSLY
CONNECTED

Faster speeds, improved performance and greater capacity with Wi-Fi 6 and Bluetooth 5.3 wireless card.

OMEN GAMING HUB

Monitor sold separately. Internals may vary.

ELEVATE YOUR GAMING EVERY TIME YOU PLAY.

This all-in-one suite seamlessly combines performance optimization, personalization tools, plus game content and services to unlock an unparalleled gaming experience.

OMEN 45L Gaming Desktop GT22-1455xt, Windows 11 Home, Intel® Core™ i9, 16GB RAM, NVIDIA® GeForce RTX™ 4090 is rated 4.3 out of 5 by 351.
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Rated 5 out of 5 by Anonymous from Not only does this hardware look great, it has great performance as well. Great hardware built and delivered quickly
Date published: 2025-01-12
Rated 1 out of 5 by Peter253424565432 from Trash support and overpriced Waste of money. Much better value elsewhere
Date published: 2025-01-10
Rated 1 out of 5 by RMKL from Disappointing Product I had a very disappointing experience with this product and the exchange experience. Right after receiving the PC, the first BIOS update caused the computer to completely stop working. Also there were some other unidentifiable issues making the pc not working properly. I spent hours trying to resolve the issue, but nothing worked. For such an expensive PC, this was a huge letdown. Overall, this has been a horrible experience, and I expected much better from HP.
Date published: 2024-12-30
Rated 1 out of 5 by Bids1989 from Screens go black and Fans blow full throttle When playing games my monitors will go black and the GPU fans will blow full speed. HP deemed it a graphics card error. They replaced and it just last month it started happening again, with a different GPU. I owned this PC for 12 months now and 6 of them this issue has been happening. Hands down the biggest regret purchase of my life.
Date published: 2024-12-26
Rated 5 out of 5 by Rav102 from Best upgrade, at a great price! Was a very easy setup and everything worked flawlessly, would definitely recommend!
Date published: 2024-12-23
Rated 1 out of 5 by MF202 from Came Broken Graphics card came broken, took 6 months for them to ship me a new one. It was dusty, bent, obviously used and broken. Been waiting 6 more months and have had no solutions to fix it. Overall disappointed. Do NOT recommend.
Date published: 2024-12-11
Rated 5 out of 5 by Woodeyee from Excellent An excellent computer. Be prepared for the extra height for the cooling addon
Date published: 2024-11-17
Rated 2 out of 5 by Matt419 from PC shuts down randomly. My PC randomly shuts down while playing games with the fan blowing very loud for a minute or two. I submitted my problem to the Microsoft page and provided a minidump file. They said there's something wrong with the graphics card. This is not something that you want when you're spending over $5000 for a PC.
Date published: 2024-09-29
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Can it support 64 gigs of ddr5 ram

Asked by: Angy24
Yes, this OMEN 45L Gaming Desktop GT22-1455xt has a maximum RAM capacity of 128GB of RAM with 32GB DIMMs. There are four DIMM slots for RAM in this PC.
Answered by: HP Team Grant
Date published: 2024-02-24

Is the OMEN 45L GT22-1455xt customizable ? I want to buy it with exxtra RAM.

Asked by: Person asking question
This OMEN 45L Gaming Desktop GT22-1455xt is prebuilt and will ship as specified. This OMEN 45L Gaming Desktop GT22-1455xt has 4 slots for RAM with 2 slots open for expansion.
Answered by: HP Team Grant
Date published: 2023-12-08

What resolution details and version are the HDMI X.Xx and Display Ports X.Xx on the GT22-1455xt RTX4090 GPU?

Asked by: AndyWorks
Thank you for your interest in the OMEN 45L Gaming Desktop GT22-1455xt. It has one HDMI 2.1 port and three DisplayPort 1.4 ports. All ports support 4K with HDR at 240Hz and 8K with HDR at 60Hz.
Answered by: HP Team James
Date published: 2024-03-13

What are the specs for the power supply? I need to size the right UPS for this beast.

Asked by: Ronaldvg
This OMEN 45L Gaming Desktop shows as having the HP 800 W 80 Plus Gold certified ATX power supply. Thank you for shopping at HP and happy gaming!
Answered by: HP Team Grant
Date published: 2024-03-05

What kind of SSD can I add to this PC?

Asked by: RichardF305555
This OMEN 45L Gaming Desktop GT22-1455xt is compatible with PCIe x4 for SSD. There are 2 expansion slots.
Answered by: HP Team Grant
Date published: 2023-09-26

What kind of motherboard does this pc have and why is that not included in the technical specifications? That is a vital component of a gaming PC. Please specify what type of motherboard this has.

Asked by: Motherboard?
Hello. Thanks for your question. This HP Omen GT22-1455xt gaming desktop computer has the proprietary ArticOC motherboard.
Answered by: HP Team Cheri
Date published: 2024-06-29

I got 6 of HP Omen 45l for streaming and blackmagic decklink cards are not working. The board is not seeing the cards. PLEASE, WHAT SHOULD I DO?

Asked by: samuelmfm
Thank you for your question! This OMEN 45L Gaming Desktop GT22-1455xt has the following expansion slots: 1 PCIe x16; 1 PCIe x4; 3 M.2 (2 PCIe x4 for SSD, 1 for WLAN). This PC will be compatible with devices that are compatible with Windows 11. To see if your devices are compatible with Windows 11 please visit the device manufacturer.
Answered by: HP Team Grant
Date published: 2024-03-18

Does this have a 1200W power supply?

Asked by: Ruble
No, this OMEN 45L Gaming Desktop GT22-1455xt has an 850W PSU.
Answered by: HP Team Grant
Date published: 2024-03-05

What type of rtx 4090 does this computer have? I wanted to know because some models are more powerful than others.

Asked by: Bob1234768754387563847534
This OMEN 45L Gaming Desktop GT22-1455xt features a NVIDIA® GeForce RTX™ 4090 (24 GB GDDR6X dedicated). That is the only information available concerning the GPU.
Answered by: HP Team Grant
Date published: 2023-11-30

I read on the NVIDA Support Site that "the RTX 4090 TGP is 450 W and the minimum recommended PSU is 850 W. Since the OMEN 45L Gaming Desktop GT22-1455xt has an 800 W power supply, does HP feel that this is enough power?

Asked by: Stephen84
The unit with the NVIDIA GeForce RTX 4090 automatically changes the power supply to a 1200 W 80 Plus Gold certified ATX power supply. Same with the 4080. You can use the custom build option https://www.hp.com/us-en/shop/ConfigureView?langId=-1&storeId=10151&catalogId=10051&catEntryId=3074457345620646818&urlLangId=&quantity=1 to see the change directly if you are interested.
Answered by: HP Team James
Date published: 2023-12-05

Can this pc come with 32Gb of ram with 2 16gb memory cards?

Asked by: ArielleT
This OMEN 45L Gaming Desktop GT22-1455xt ships with Kingston FURY 16 GB DDR5-5200 MHz XMP RGB Heatsink RAM (2 x 8 GB). This Desktop has four slots for RAM.
Answered by: HP Team Grant
Date published: 2023-11-30

how many m.2 slots does the motherboard have? and what motherboard is it?

Asked by: bobby2345225252666
Hello. Thanks for your question. This HP OMEN 45L Gaming Desktop GT22-1455xt computer has 3 M.2 (2 PCIe x4 for SSD, 1 for WLAN) slots available.
Answered by: HP Team Cheri
Date published: 2023-06-27

What is the wattage requirement for the RTX 4090 GPU in GT22-1455xt?

Asked by: Pastry
The RTX 4090 maximum wattage is 450W. The OMEN will have an 800W power supply as recommended for the 4090.
Answered by: HP Team James
Date published: 2024-03-05

What ram should I get along with this computer?

Asked by: No name available
Hello. Thanks for your question. This HP OMEN 45L Gaming Desktop GT22-1455xt supports up to 128 GB DDR5-5200 RAM. There are 4 RAM slots.
Answered by: HP Team Cheri
Date published: 2024-05-02

Does the Omen 45L motherboard and power supply support 4 SATA devices ?

Asked by: FastTxCanuck
Thank you for your question! This OMEN 45L Gaming Desktop GT22-1455xt will support up to 4 SATA devices. This Omen 45L comes with the following expansion options: Tool-less 2 - 2.5” SATA SSD trays (behind Motherboard) Tool-less 2 - 3.5” SATA HDD trays (behind Power Supply Unit shroud)
Answered by: HP Team Grant
Date published: 2024-11-18

What is the maximum HDD capacity (terabytes) that the OMEN 45L GT22-1455t supports adding? Is a 24TB drive fully accessible, or is there some limit based on the motherboard etc.?

Asked by: Anonymous
Thank you for your question! Contact HP Tech Support at this link: https://support.hp.com/us-en
Answered by: HP Team Grant
Date published: 2025-02-27

Can this sytem handle RAM with different speeds than 5200Mhz? Please do NOT respond by telling us that it can handle 5200Mhz ram. That's plain from the product description. The question is what other speeds can it handle.

Asked by: sbmahot
The OMEN 45L Gaming Desktop GT22-1455xt is designed to be used with 5200MHz RAM. HP recommends using RAM of the listed speed.
Answered by: HP Team Grant
Date published: 2024-09-19

*NOT THE RECOMMENDED THAT IS ALREADY INSTALLED* What's the maximum speed DDR5 ram supported in the Omen 45L gt22-1455xt?

Asked by: AceV
The recommended RAM speed for this OMEN 45L Gaming Desktop GT22-1455xt is the 5200MHz speed that comes installed. If a faster RAM speed is chosen that RAM speed will operate at 5200MHz.
Answered by: HP Team Grant
Date published: 2024-03-05

Is this computer VR ready?

Asked by: snewton
This unit is VR ready. If you are curious about what software and which headsets work, you can check the system requirements from the publisher's website and the developer's websites to make sure you can run on the settings you want it to run on.
Answered by: HP Team James
Date published: 2023-11-28

Is it vr ready for an oculus 2?

Asked by: Godygamer12347
Hello. Thanks for your question. Yes, this HP OMEN 45L Gaming Desktop GT22-1455xt computer exceeds the requirements for the Oculus Quest 2 System.
Answered by: HP Team Cheri
Date published: 2023-06-13

What is the Power Supply wattage? I can't find this information on product web page.

Asked by: Pastry
The OMEN 45L Gaming Desktop GT22-1455xt uses a Cooler Master 800W 80 PLUS Gold ATX PSU.
Answered by: HP Team Grant
Date published: 2024-03-05

What display ports does my 45L gaming computer have? OMEN 45L Gaming Desktop GT22-1455xt, Windows 11 Home, Intel® Core™ i9, 16GB RAM, NVIDIA® GeFo

Asked by: Paul100
Hello, Paul. Thanks for your question. This OMEN 45L Gaming Desktop GT22-1455xt computer has 3 DisplayPorts.
Answered by: HP Team Cheri
Date published: 2024-02-24

what kind of storage does it supposed to come with?

Asked by: rich30055
This specific model comes with two types of storage. It has a 1TB PCIe NVMe M.2 SSD, and a 1TB 7200RPM HDD. The SSD is the main storage drive for this unit.
Answered by: HP Team James
Date published: 2023-10-12

Can you add more ram yourself?

Asked by: Lucca11
Yes, the OMEN 45L Gaming Desktop GT22-1455xt is designed for upgraded. This OMEN 45L Gaming Desktop GT22-1455xt has a maximum RAM capacity of 128GB of RAM.
Answered by: HP Team Grant
Date published: 2024-07-12

How many monitors will it run? I need at least 3 for my flight simulator.

Asked by: Kiin
Hello. Thanks for your question. This HP OMEN 45L Gaming Desktop GT22-1455xt computer has support for 4 monitors: 1 HDMI port and 3 DisplayPorts.
Answered by: HP Team Cheri
Date published: 2023-09-26

What's the maximum speed DDR5 ram supported in the Omen 45L gt22-1455xt? Or what's the motherboard model so I can find out other questions?

Asked by: AceV
The recommended RAM for this OMEN 45L Gaming Desktop GT22-1455xt is DDR5-5200 MHz.
Answered by: HP Team Grant
Date published: 2023-08-20

Hi - How many SATA connections (for HDDs) does the Motherboard have? I believe it comes with one HDD secondary storage. Are there room for two more drives (drive enclosures)?

Asked by: BG1981
This Omen 45L features the following SATA HDD expansion opportunities: 2 - 3.5” SATA HDD tool-less trays (behind PSU shroud) 2 - 2.5” SATA SSD tool-less trays (behind the Motherboard for end-user upgrade)
Answered by: HP Team Grant
Date published: 2023-12-13

Does it support 4x32GB DDR5 RAM? The specs say max is 128GB.

Asked by: Pastry
This OMEN 45L Gaming Desktop GT22-1455xt will be compatible with up to 128GB DDR5-5200 MHz and will have four slots for RAM. Thank you for shopping at HP!
Answered by: HP Team Grant
Date published: 2024-03-10

Is Windows 11 installed on the NVMe SSD?

Asked by: kratos
Thank you for your question! Yes, this OMEN 45L Gaming Desktop GT22-1455xt has Windows 11 installed on the SSD.
Answered by: HP Team Grant
Date published: 2024-03-29

What type of power supply this pc have? 1000w or 1200w?

Asked by: Eduard23
This OMEN 45L Gaming Desktop GT22-1455xt features an 800 W 80 Plus Gold certified ATX power supply.
Answered by: HP Team Grant
Date published: 2024-03-05
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Return and exchange information
HP.com will accept returns or exchanges for this product up to 30 days from the date of delivery. A 15% restocking fee may apply. For details, please visit: https://www.hp.com/us-en/shop/cv/returnsandexchanges.