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

  • 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

Protect your Device with an HP Care Pack
Product # 33T66AA#ABA
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 Cryo Chamber™

Enables the liquid cooler radiator to pull-in cold air from the surrounding environment to cool down the CPU.

Crafted for expansion

Easily upgrade and expand the memory, storage drives, and interior expansion slots to fit your gaming needs.

OMEN Gaming Hub

The OMEN Gaming Hub elevates everything from software enhancements, hardware controls, to live services.

Copilot in Windows 11 - Get answers, inspiration, and summaries

Find the relevant information and ideas you need to power your own ingenuity. Copilot in Windows 11 can deliver answers that are more relevant to you**.

Get a fresh perspective

From a rejuvenated Start menu, to new ways to connect to your favorite people, news, games, and content—Windows 11 is the place to think, express, and create in a natural way.[2]

Revolutionary technology for real world performance

13th Gen Intel® Core™processors bring the best in connectivity and offer customers advanced designs to address their most demanding challenges.[3]

Beyond Fast

NVIDIA® GeForce RTX™ 40 Series GPUs are beyond fast. Powered by the NVIDIA Ada Lovelace architecture which delivers a leap in both performance and AI-powered graphics. Experience lifelike virtual worlds with ray tracing and ultra-high FPS gaming.[4]

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 to provide immersion for the best entertainment experience possible.[5]

USB Type-A 5Gbps signaling data rate

Plug in your external storage with this USB Type-A port, featuring 5Gbps signaling data rate.[6]

USB Type-C® 10Gbps signaling rate only

Plug in your external storage with this USB-C™ port, featuring 10Gb/s signaling rate. And it’s reversible, so you never have to worry about plugging in upside down.[7]

Dual channel memory

With dual channel technology, two channels work simultaneously to double the communication speed between the memory controller and the RAM increasing system performance.

Dual storage configurations

By including both an SSD drive for the operating system and a traditional hard drive you get the benefits of both worlds—fast boot up times, snappy responsiveness, and larger storage capacity.

Wi-Fi 6E (2x2) and Bluetooth® 5.3 wireless card

Enjoy faster speeds, improved performance, greater capacity and lower latencies than earlier iterations with Wi-Fi 6E and Bluetooth® 5.3 wireless card.[8]

Sustainable design

Because little things make a big difference, this product includes sustainable materials like water-based paint in the design.[9]

OMEN CRYO CHAMBER™

Experience revolutionary cooling from the patented OMEN CRYO CHAMBER™ cooling system that enables the liquid cooler radiator to channel fresh, cold air from the surrounding environment to cool down the CPU.

McAfee® LiveSafe™

Protect your operating system with a free 30-day McAfee® LiveSafe™ subscription.[10]

Technical details

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 MHz XMP RGB Heatsink RAM (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

[19]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

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 registeredENERGY 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 trial1 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

[41]Water based paint

Offers

FREE Storewide Shipping

HP offers free standard shipping storewide

Try Game Pass for Free!

Your new device comes with a one-month free trial of Game Pass! Follow instructions during device setup or visit the Xbox App to access this special offer.

Get 35% off a select HP bag or sleeve with any notebook purchase!

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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 68.
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Rated 5 out of 5 by Anonymous from Utterly blown away Wow, what an amazing computer. I previously owned an Alienware R11 with a 3090. I would mine crypto with it and the entire room would heat up. Making it a rather unpleasant experience. Now I have this beautiful computer with a 4090. I mine crypto on it and the the computer stays quiet and cool. I'm utterly blown away, now I can mine crypto without disrupting the temperature in my office. This case is a master piece and I cant wait till they sell the case on its own so I can move my old pc components into it. Great deal, exceptional value. Happy customer. 10/10 Great Job HP
Date published: 2024-01-15
Rated 5 out of 5 by Steven5 from HP Omen 45L Great computer!
Date published: 2024-01-06
Rated 4 out of 5 by thtmnisamnstr from Not a perfect gaming PC but really good (especially at $3k) I've had this PC for almost a month. It is a beast. Everything feels close to instant, and AAA games look beautiful in 4k at high frame rates. The CPU+GPU combination is very good (at least at this point in time). For playing 4k games and streaming from my PC to a handheld, this computer handles everything I need with ease. The cryo chamber seems to work well (temps stay low even with the crazy hot CPU+GPU and 4k realtime ray/path tracing). It is super easy to get into the tower and work on things. The fans are also very quiet for a PC of this size and composition. Overall, I'm very happy with this computer, especially at $3000, which is what I bought it at. That said, it is not a perfect PC. To begin with, 16GB of RAM is low for this setup. I immediately switched out the 2x8GB DDR5 sticks with 2x32GB DDR5 sticks. That led to me discovering that the bios supports XMP (XMP lets you increase RAM speed), but setting up custom XMP profiles and getting them to work is a roll of the dice. It was difficult enough that I gave up on it and am running at the default RAM speed. My last complaint is that Windows Modern Standby, which is the default in Windows 11, causes strange sleep behavior with this PC. This issue is probably the most common complaint for the Omen 45L (especially the power supply clicking on and off). When the PC is sleeping, the power supply will click on and off every few minutes/hour/every few hours (the period changes and I couldn't find a pattern) and occasionally turn the fans on and off. It also doesn't seem to work well with Wake on LAN. To fix these problems, you need to switch to classic S3 Sleep mode. It's a pain to switch, but it gets rid of the sleep problems the 45L has. Honestly, switching from Modern Standby to S3 Sleep should be recommended by HP for all 45L users and they should make a tutorial on how to do it. It's the most common 45L complaint I've come across by a long shot, and I guarantee some people are sending their 45L back on warranty because of this issue. It's not a PC problem. It's a Windows problem, and it can be addressed w/o the PC needing to go back to the factory.
Date published: 2024-01-02
Rated 1 out of 5 by Giovanni A. from Buyer beware Bought this product new. Had to immediately return the product due to faulty hardware. Electrical buzz in case potentially due to the AIO fans malfunctioning. Seemed like the unit was refurbished. Now I have to wait another 2 weeks before I can even be considered to receive another unit. Very concerned about the exchange unit being similar as I have read other horror stories online around this product and faulty hardware.
Date published: 2023-12-19
Rated 5 out of 5 by AnnaReviews from Great pre-built with peculiar settings I never thought I would go to HP to buy a pre-built, but here I am, and I'm very happy with this computer so far! I wanted to mention a few things because this information really ought to be on the specs but is omitted for some reason. Customer service wasn't privy to this information, either. The ram is Kingston 4800 MHz ddr5 (8 gb sticks x2). For some reason HP has underclocked these to run at 4400 MHz. However, after I updated the omen gaming hub software, it offered me the option to overclock to 5200 MHz. The Q&A section says it comes with 800/850 w psu, but mine came with 1200 w cooler master psu. XMP is offered through the bios, but it gives you a warning about voiding the warranty, so I didn't mess with it. You also get a warranty warning if you try to swap power modes to "extreme" in the omen gaming hub (although after last software update, it simply says go to bios - you can't change in hub anymore as of this review). There is lighting software with a lot of nice options, but it only seems to control the lights for the omen symbol and the fans. The GPU and the ram are rainbow, and I haven't figured out how to change it through the HP software. Besides these quirks, the computer ran perfectly out of the box. The packaging was interesting with the "quick release" tabs. The device arrived very quickly and came with a keyboard and mouse (unexpected!). Overall, I'm happy with this purchase!
Date published: 2023-12-15
Rated 5 out of 5 by Aradon92 from Already working great. This machine seems to be exactly what I wanted in a gaming computer as far as I can tell.
Date published: 2023-12-15
Rated 4 out of 5 by Markbct from Beast of a PC Let me start by saying this case is unbelievable the way the 4 sides open is smooth and expected The build quality is clean and very expandable. I added the additional 16mb to make it 32 as this should have been standard, I also added a 4tb WD-B NvMe, and my old 6 TB standard drive with my game files from an old Pc , all my upgrades were easily done without any proprietary roadblocks. The couple of things I’m not a fan of is the OMEN interface while I understand some might really like but I’ve stopped launching it. All though this is a beast I9 and RTX 4090 I feel HP isn’t allowing its full potential, after the year is up I will try to investigate it further. Hp is always my first choice and this system was from my last Omen I7 and a 1070 graphics card that ran flawless for gam
Date published: 2023-12-14
Rated 4 out of 5 by Wormycat from Specs wrong Really good design and low noise gamming. Runs games very smooth and looks great. Took a star away due to: specs say it had 4 memory slots but only had 2!
Date published: 2023-12-12
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can you add 2x8 RAM to the PC? same ram cards that is already installed for a total of 32 gigs.

Asked by: richard305
Hello, Richard. 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. If you want a total of 32 GB RAM, you can add two 8 GB DDR5-5200 RAM sticks in the last 2 RAM slots. The other option is to put a 16 GB DDR5-5200 RAM in the first slot and put the 8 GB DDR5-5200 RAM in the third slot.
Answered by: HP Live Expert Cheri
Date published: 2023-11-28

I know that RAM can be added, but can processors and graphics cards be swapped in the future?

Asked by: Camron Gr
The GPU on this OMEN 45L Gaming Desktop GT22-1455xt will be able to be upgraded without much or any complications as long as it uses a PCIe x16 slot. Processors can be tricky and may require a motherboard switch as well. This is not always the case but it is a possibility. Hopefully this answer helped and thanks for shopping at HP!
Answered by: HP Team Grant
Date published: 2023-06-17

What motherboard is in this unit

Asked by: shatzer
Hello. Thanks for your question. This HP Omen desktop computer has the ArticOC motherboard.
Answered by: HP Live Expert Cheri
Date published: 2023-12-09

Is it possible to order this model with 64GB or 128GB RAM?

Asked by: Farhad66
Hello. Thanks for your question. There is no option to upgrade this HP OMEN 45L Gaming Desktop GT22-1455xt computer.
Answered by: HP Live Expert Cheri
Date published: 2023-12-09

Does the motherboard support Gen 5 PCIe M.2 SSDs?

Asked by: Pastry
Yes, this OMEN 45L Gaming Desktop GT22-1455xt will support Gen 5 PCIe M.2 SSDs. Thank you for your question!
Answered by: HP Team Grant
Date published: 2023-09-29

Can a WD_Black 4TB SN850P NVMe M.2 SSD with heat sink be added as an additional drive?

Asked by: JLS465
This OMEN 45L Gaming Desktop GT22-1455xt will have two expansion PCIe x4 for SSD slots.
Answered by: HP Team Grant
Date published: 2024-03-05

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
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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.