- Top Pick: HP OMEN 45L Gaming Desktop, Intel Core Ultra 9 285K, 64 GB RAM, 2 TB SSD, NVIDIA GeForce RTX 5090, Windows 11 Pro, Microsoft Copilot, Tempered Glass, GT22-3090 (2025)
- Best Value: HP OMEN 45L Gaming 5090 Desktop PC, Intel Core Ultra 9 285K, GeForce RTX 5090, 64GB DDR5, 4TB SSD, Support 4-Display 4K, Light Studio, HDMI, DP, Wi-Fi 6E, Windows 11 Pro, AI-Ready Workstation Desktop
- Premium Choice: HP Omen 45L Ultra 9 285K & RTX 5090 Gaming Tower Desktop, 32GB DDR5+ 2TB
The HP OMEN 45L is HP’s flagship gaming desktop, and this 2025 GT22-3090 configuration is a statement build: an Intel Core Ultra 9 285K paired with NVIDIA’s range-topping GeForce RTX 5090, 64GB of memory and a 2TB SSD in the premium price tier. It is aimed at the enthusiast who wants elite performance from a major-brand machine. This HP OMEN 45L review covers the specifications, performance, build quality and value.
HP OMEN 45L Gaming Desktop, Intel Core Ultra 9 285K, 64 GB RAM, 2 TB SSD, NVIDIA GeForce RTX 5090, Windows 11 Pro, Microsoft Copilot, Tempered Glass, GT22-3090 (2025)
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Updated October 2026 — Here is the short answer on the HP OMEN 45L: the GT22-3090 configuration pairs an Intel Core Ultra 9 285K with a GeForce RTX 5090, 64GB of DDR5 and a 2TB SSD, and it is one of the fastest-GPU prebuilts a major brand sells. It is not flawless. Independent benchmarks from GamersNexus found HP runs the Core Ultra 9 285K well below its rated clocks, so the HP OMEN 45L RTX 5090 is best judged as a fast GPU in a prebuilt shell, not a perfect all-rounder.
Top three picks in this guide by exact model name: the HP OMEN 45L GT22-3090 (RTX 5090) for the strongest GPU from a big brand, the Alienware Aurora R16 with RTX 5080 and Core Ultra 9 285K for a more balanced spend, and the MSI MEG Vision X AI with RTX 5080 and 64GB of DDR5 for a premium alternative.
HP OMEN 45L Top Picks at a Glance
- Best RTX 5090 prebuilt from a big brand: HP OMEN 45L GT22-3090 — Core Ultra 9 285K · RTX 5090 32GB · 64GB DDR5 · 2TB Gen4 SSD
- Best balance of price and power: Alienware Aurora R16 — Core Ultra 9 285K · RTX 5080 16GB · 32GB DDR5 · 1TB SSD
- Best for creators who want 64GB of RAM: MSI MEG Vision X AI — Core Ultra 9 285K · RTX 5080 · 64GB DDR5 · 2TB NVMe · liquid cooling
- Best step down in price: iBUYPOWER Y40 PRO — Core Ultra 9 285 · RTX 5080 16GB · 32GB DDR5
| Model | CPU | GPU | RAM | Best for | Price tier |
|---|---|---|---|---|---|
| HP OMEN 45L GT22-3090 | Core Ultra 9 285K | RTX 5090 32GB | 64GB DDR5 | 4K max settings, local AI, video work | Premium tier; street price varies widely by deal |
| Alienware Aurora R16 | Core Ultra 9 285K | RTX 5080 16GB | 32GB DDR5 | High-refresh 1440p and 4K | $3,500 to $4,500 |
| MSI MEG Vision X AI | Core Ultra 9 285K | RTX 5080 | 64GB DDR5 | Creators who want more memory | Over $4,500 |
| iBUYPOWER Y40 PRO | Core Ultra 9 285 | RTX 5080 16GB | 32GB DDR5 | Lower entry price to RTX 5080 | $3,500 to $4,500 |
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HP OMEN 45L at a Glance
| Component | Specification |
|---|---|
| Processor | Intel Core Ultra 9 285K (24 cores: 8P + 16E) |
| Graphics | NVIDIA GeForce RTX 5090 (Blackwell flagship) |
| Memory | 64GB DDR5 |
| Storage | 2TB PCIe Gen4 NVMe M.2 SSD |
| Chassis | Tool-less access, tempered glass, HP-branded micro-ATX motherboard (per teardown) |
| Operating system | Windows 11 Pro |
| Model | GT22-3090 (2025) |
| Price | Check on Amazon |
Performance: Uncompromised 4K and Beyond
The OMEN 45L is built to remove every performance limit. The RTX 5090 is NVIDIA’s flagship Blackwell GPU, designed for maxed-out 4K gaming at high refresh rates and capable of pushing into high-resolution, high-frame-rate territory that no lesser card can reach, with DLSS 4 and Multi Frame Generation on top. The Intel Core Ultra 9 285K — an unlocked 24-core Arrow Lake processor — pairs with this GPU and brings substantial multi-threaded performance plus on-chip AI acceleration. With 64GB of DDR5 and a 2TB PCIe Gen4 SSD, the 45L is equally at home with the most demanding creative and AI workloads: high-resolution video editing, 3D rendering and large local AI models all have the memory and compute they need. This is a machine bought to game and create at the very top, for years. For context on the components, see our RTX 5080 guide (the tier below the 5090) and our Intel Core Ultra guide.
What Independent Benchmarks Say About the HP OMEN 45L
Retail pages and affiliate write-ups describe the HP OMEN 45L as a flagship. Independent benchmark outlets are more mixed, and a buyer spending this much should read both. The most detailed teardown comes from GamersNexus, which called the unit it bought the worst pre-built it has ever benchmarked. Their main findings, as reported:
- CPU clocks: the Core Ultra 9 285K held about 4GHz on all performance cores, roughly 1.4GHz below the same chip in a normal retail build.
- Rendering time: a render that finished in about 7.1 minutes on a standard 285K took about 8.8 minutes in the OMEN.
- Memory speed: the 64GB of Kingston FURY DDR5 is rated for DDR5-5600, but the system shipped running at DDR5-4800 until the “HP XMP Profile” was switched on in the BIOS.
- Extra software: the reviewers counted 16 apps beyond a normal Windows install, including trial and shopping apps.
- Price gap: they estimated the prebuilt carried a premium of roughly 29% over buying equivalent parts and assembling the PC yourself.
Other outlets are kinder. PC Guide notes that the 285K trails in single-core gaming work but is strong in multi-core tasks, and some write-ups praise the 32GB RTX 5090 for local AI and video editing and report low CPU temperatures in the chosen mode. The honest reading: the GPU is the star, and the CPU configuration is the weak point.
HP OMEN 45L Performance Mode, Clocks and Memory Speed Explained
If you buy the HP OMEN 45L, the first hour of ownership matters more than on most PCs. According to GamersNexus, the stock power profile limits the Core Ultra 9 285K, and unlocking its full behavior means enabling a mode HP labels “Extreme Mode”, which the reviewers said ties into warranty terms. Read HP’s current warranty wording before you change it.
A short first-day checklist for any OMEN 45L owner:
- Update the BIOS and the OMEN Gaming Hub app from HP’s support page.
- Open the BIOS and enable the HP XMP Profile so the DDR5 runs at its rated 5600 instead of 4800.
- Check CPU clocks and temperature under a long load before deciding on any performance mode.
- Remove preinstalled apps you do not want.
- Confirm the GPU is seated and the 12V-2×6 power cable is fully clicked in, which matters for any RTX 5090.
For pure gaming at 4K, the RTX 5090 does most of the work, so the CPU gap shows up less in frame rates than in rendering, compiling and multi-threaded creative tasks. At 1080p and 1440p with a very high refresh rate, the CPU gap is easier to notice.
Design, Cooling and Build Quality
The OMEN 45L is HP’s flagship gaming desktop, and its chassis is built around tool-less access that makes basic upgrades easy, although the motherboard is a compact HP-branded board rather than a standard enthusiast model. Tempered glass shows off the internals, and the 45L’s large chassis gives components room to breathe. Build quality is flagship-grade throughout: this is a major manufacturer assembling premium hardware into a cohesive, well-finished whole. It looks and feels every bit the high-end machine its price suggests.
HP OMEN 45L Cooling, Power Supply and Noise: What to Expect
The OMEN 45L uses a 360mm liquid cooler and a 1200W 80 Plus Gold power supply, both appropriate on paper for an RTX 5090 and a 285K. NVIDIA recommends at least a 1000W power supply for the RTX 5090, so the 1200W unit leaves headroom for transient spikes. The questions raised by independent reviewers were about airflow design rather than component size. GamersNexus reported that HP’s “Cryo Chamber” layout, which places the radiator in an isolated section of the case, performed worse than a conventional radiator position and that the front intake fans moved little air.
What to expect at this tier
- A flagship GPU plus a 250W-class CPU produces a lot of heat; expect fan noise under sustained load.
- Case airflow and radiator placement matter as much as radiator size.
- A 1000W to 1200W supply is the sensible minimum for an RTX 5090 system.
- Room temperature, desk placement and dust filters change real-world temperatures noticeably.
- Always leave several inches of clearance around the intake and exhaust.
Connectivity and Upgradability
Upgradability is a strength for storage, memory and the graphics card. Tool-less access means you can add storage or swap a GPU without special tools, but the motherboard is an HP-branded micro-ATX board and the LGA 1851 socket is a dead-end platform, so treat the PC as upgrade-friendly rather than future-proof. The 2TB Gen4 SSD and 64GB of DDR5 mean storage and memory are far beyond what gaming needs today, leaving enormous headroom. For an enthusiast who wants a flagship machine that is simple to service, the tool-less chassis is a real advantage. See how it compares with other premium builds in our prebuilt PC roundup.
How Upgradable Is the HP OMEN 45L Really?
HP markets the tool-less chassis as upgrade-friendly, and for storage, memory and the graphics card that is largely fair. The teardown shows an HP-branded Z890 micro-ATX motherboard rather than a full-size enthusiast board. Practical consequences:
- Memory: four DIMM slots are common on micro-ATX Z890 boards, so adding capacity is realistic, but confirm slot count before buying more RAM.
- Storage: M.2 slots are standard, so adding a second SSD is simple.
- CPU: the Core Ultra 9 285K uses Intel’s LGA 1851 socket, which GamersNexus described as a dead-end platform, so a future CPU swap may be limited.
- Cooling and case: replacing the cooler or fans may be harder than on a standard case because of HP’s chamber layout.
Treat the OMEN 45L as easy to service, but not as limitless as a hand-built PC.
Setup, Software and Ownership
Setup is the standard major-brand routine — unbox, connect peripherals, and the pre-installed Windows 11 Pro is ready, complete with Microsoft Copilot for AI assistance. HP’s OMEN Gaming Hub software acts as the control centre for performance modes, lighting, system monitoring and updates. Long-term ownership is where the 45L’s design philosophy pays off most. The tool-less chassis makes cleaning, servicing and basic upgrades simple, with no special tools needed. The large chassis also keeps the powerful RTX 5090 and Core Ultra 9 well-ventilated, and HP’s manufacturing scale and support network are reassurances a boutique builder cannot match. The 2TB SSD and 64GB of RAM mean the most common upgrades simply will not arise for years. For an enthusiast who wants a flagship machine that is easy to live with and backed by a major brand, the OMEN 45L’s ownership experience is one of its strongest points.
HP OMEN 45L vs HP OMEN MAX 45L: What Is the Difference?
Shoppers searching for the “latest model” often land on two similar names. The HP OMEN 45L covered in this review is the 2025 GT22 generation with the Intel Core Ultra 9 285K. The HP OMEN MAX 45L is HP’s newer naming and is offered with an AMD Ryzen 9 9900X3D and the same class of RTX 5090 GPU. For pure gaming, X3D processors usually have the edge because of their large cache; for multi-threaded creative work, the 285K is competitive. If your main use is high-refresh gaming, compare the OMEN MAX 45L’s Ryzen 9 9900X3D versions as well.
HP OMEN 45L RTX 5090 vs Building Your Own PC
A custom build lets you pick the board, cooler and case, set memory speed correctly and avoid preinstalled apps. GamersNexus put HP’s premium over equivalent parts at roughly 29%. Buying a prebuilt still has real benefits: one warranty contact, assembly done for you, and Windows 11 Pro activated. Build your own if you are comfortable with parts compatibility. Buy the OMEN 45L if you value a single support channel and a ready-to-run machine, and you plan to check the BIOS settings listed above.
Best High-End Gaming PC Alternatives to the HP OMEN 45L
If the CPU and cooling findings put you off, these current prebuilts are worth comparing. Specs below come from the makers’ listings; check the current configuration before buying.
Alienware Aurora R16 RTX 5080 — Best for balanced high-end gaming
Spec line: Core Ultra 9 285K · RTX 5080 16GB GDDR7 · 32GB DDR5 · 1TB SSD
- Intel Core Ultra 9 285K, the same processor as the OMEN 45L.
- GeForce RTX 5080 with 16GB of GDDR7, a strong 4K card that sits one tier below the RTX 5090.
- 32GB of DDR5, enough for gaming, with room to grow.
- Dell’s Alienware support network and a recognizable chassis.
Pros: noticeably lower entry cost than an RTX 5090 system; RTX 5080 handles 4K with DLSS well; major-brand support. Cons: 16GB of VRAM instead of 32GB; 32GB of RAM limits heavy creative work; Dell designs often use some proprietary parts.
Skip it if you need 32GB of VRAM for local AI models or maximum 4K ray tracing.
MSI MEG Vision X AI RTX 5080 — Best for creators who want 64GB of RAM
Spec line: Core Ultra 9 285K · RTX 5080 · 64GB DDR5 · 2TB M.2 NVMe SSD · liquid cooling
- The same Core Ultra 9 285K, with a liquid cooler listed.
- 64GB of DDR5 matches the OMEN 45L’s memory capacity.
- 2TB NVMe SSD matches the OMEN 45L’s storage.
- RTX 5080 graphics instead of RTX 5090.
Pros: memory and storage match the OMEN 45L; liquid cooling is listed; strong for editing and gaming together. Cons: premium pricing for an RTX 5080 system; less GPU memory than the 5090 build.
Skip it if you want the fastest GPU at any cost.
iBUYPOWER Y40 PRO RTX 5080 — Best step down in price
Spec line: Core Ultra 9 285 · RTX 5080 16GB · 32GB DDR5
- Core Ultra 9 285, the non-K version of the OMEN’s processor.
- RTX 5080 16GB GPU for 4K gaming.
- 32GB of DDR5 memory.
Pros: usually the lowest entry cost of the group; same GPU tier as the Alienware. Cons: non-K CPU is not made for overclocking; smaller brand support network than HP, Dell or MSI.
Skip it if you want a brand with large retail service centers.
Best High-End Gaming PC by Budget Tier
Best under $4,500
Alienware Aurora R16 RTX 5080 · iBUYPOWER Y40 PRO RTX 5080. What to expect at this tier:
- RTX 5080 class graphics with 16GB of VRAM.
- Smooth 4K gaming with DLSS and frame generation, estimated from the GPU tier rather than measured here.
- 32GB of DDR5 as standard.
- 1TB to 2TB of NVMe storage.
Best over $4,500
HP OMEN 45L GT22-3090 · MSI MEG Vision X AI. What to expect at this tier:
- Either an RTX 5090 with 32GB of VRAM or an RTX 5080 with 64GB of system memory.
- 64GB of RAM and 2TB of storage for creative and AI work.
- Large cases and loud fans under sustained load.
- Diminishing returns for gaming alone.
Who Is the HP OMEN 45L For?
The OMEN 45L is for the enthusiast or professional who wants elite, uncompromised performance from a major, trusted brand. If you game at 4K and want maximum settings and frame rates, run demanding creative or AI workloads, and value a genuinely upgrade-friendly chassis and HP’s support network, the 45L is built precisely for you — and the RTX 5090, Core Ultra 9 285K, 64GB of memory and 2TB SSD deliver on that promise. It is emphatically not for the typical gamer: the vast majority of players will never use this much hardware, and the price reflects flagship status rather than sensible value. If maximum performance is genuinely your priority and budget is not the deciding factor, the 45L is one of the best big-brand ways to get it.
HP OMEN 45L Gaming Performance by Resolution: What to Expect
Exact frame rates depend on the game, settings and whether you enable DLSS 4 with Multi Frame Generation, so treat the table below as estimates based on the RTX 5090 hardware tier, not measurements from this review. The RTX 5090 is NVIDIA’s top consumer GPU, with 32GB of GDDR7, and it sits above every other current GeForce card.
| Display | What to expect | Where the CPU matters |
|---|---|---|
| 1080p, 240Hz+ | Far more GPU than needed; esports titles are limited by the CPU | High; clock speed decides frame rate |
| 1440p, 165Hz to 240Hz | Maxed settings in nearly all modern games | Moderate |
| 4K, 120Hz | The target use; ray tracing and path tracing are practical with DLSS | Low |
| Ultrawide or 5K | Comfortable at high settings with upscaling | Low |
The practical reading: this is a 4K machine. If you play at 1080p or 1440p on a very fast monitor, a cheaper RTX 5080 system gives similar experiences for far less money, and the OMEN’s lower-than-rated CPU clocks matter more at low resolutions.
HP OMEN 45L for AI, Video Editing and 3D Work
The RTX 5090’s 32GB of memory is the biggest reason creators look at this PC. Local AI models, large image generation workflows, 8K video timelines and big 3D scenes fit into 32GB where 16GB cards run out. Together with 64GB of system RAM and a 2TB SSD, the configuration suits:
- Local AI work: running larger language and image models without offloading to system memory.
- Video editing: multi-layer 4K timelines and GPU-accelerated effects.
- 3D rendering: GPU renderers that scale with VRAM.
Where the OMEN is weaker is CPU-heavy work. GamersNexus’s render comparison shows the Core Ultra 9 285K finishing slower inside the OMEN than a normal 285K. If your workload is mostly CPU-bound, such as software encoding or compiling, weigh that gap.
Common HP OMEN 45L Problems and Fixes
Memory runs at DDR5-4800 instead of 5600
Enable the HP XMP Profile in the BIOS. Restart and confirm the speed in Windows task manager.
CPU clocks are lower than expected
Check the performance mode in OMEN Gaming Hub and BIOS, monitor clocks during a long load, and read HP’s warranty notes before using the more aggressive mode.
Too many preinstalled apps
Uninstall trial software and shopping apps you do not want. Keep HP’s driver and support tools.
Fans get loud under load
Raise the case away from a wall, clean the dust filters, and set a fan curve in OMEN Gaming Hub.
Games stutter on a fast monitor
Update the NVIDIA driver, enable the monitor’s full refresh rate in Windows, and use DLSS where supported.
RTX 5090 or RTX 5080: Which Should You Buy?
The jump from RTX 5080 to RTX 5090 is large in GPU memory (16GB to 32GB) and raw power, but it also adds a big price gap. A short rule: buy the RTX 5090 if you need 32GB of VRAM or want the best possible 4K path tracing; buy the RTX 5080 if you mainly game at 1440p or standard 4K. Use the Alienware Aurora R16 or MSI MEG Vision X AI cards earlier on this page as RTX 5080 reference points.
Pros and Cons
- Pros: Flagship RTX 5090 for uncompromised 4K and beyond; 24-core Core Ultra 9 285K; huge 64GB RAM; tool-less chassis that makes storage, memory and GPU upgrades easy; major-brand build quality and support; Windows 11 Pro.
- Cons: Very high price; far more machine than most gamers need; large, power-hungry system.
Is the HP OMEN 45L Worth It?
At its price tier the OMEN 45L is unapologetically a flagship, and value here is not measured in frames per dollar. It is worth it for a specific buyer: someone who wants elite gaming and creation performance from a major brand, in a chassis that is easier to service than many prebuilts. For that person, the GPU delivers what it promises, as long as they accept the CPU findings above. For everyone else, it is far more than is needed — our under $2,000 guide and our Skytech King 95 review point to far more sensible spends that still deliver excellent gaming.
How We Chose These Picks
This guide is research-based. We compared manufacturer and retailer spec listings and read independent benchmark reports, then picked systems with the same class of processor and GPU as the HP OMEN 45L. We looked at CPU, GPU and VRAM, memory capacity, storage, cooling type, power supply size, brand support, and what independent outlets reported about clocks and noise. Where a spec was not stated in a listing, we left it out.
RTX 5090 Prebuilt Buying Guide: Numbers That Matter
Power supply size
For an RTX 5090, look for a 1000W supply or larger. The OMEN 45L’s 1200W 80 Plus Gold unit meets that.
GPU memory
The RTX 5090 has 32GB of GDDR7. The RTX 5080 has 16GB. For 4K gaming 16GB is enough for most games today; local AI and large 3D projects benefit from 32GB.
System memory
32GB of DDR5 is the sweet spot for gaming. 64GB suits video editing, 3D, and running games alongside heavy apps. Check that the RAM runs at its rated speed in the BIOS.
Cooling
A 360mm liquid cooler is the standard on flagship builds. Case airflow decides whether it performs well, so look for independent temperature results for the exact case.
Platform
Intel’s LGA 1851 socket for Core Ultra 200S is reported to be a dead-end platform, so a CPU upgrade path is limited. AMD’s AM5 socket has a longer outlook.
Warranty and support
Major brands offer nationwide service. Check what happens to the warranty if you change BIOS performance settings.
Which Buyer Should Choose the HP OMEN 45L?
- Choose the OMEN 45L if you want an RTX 5090 with 64GB of RAM from a big brand and will fix BIOS settings on day one.
- Choose the Alienware Aurora R16 if an RTX 5080 is enough and you want a lower cost.
- Choose the MSI MEG Vision X AI if you edit video and want 64GB of RAM with liquid cooling.
- Build your own if you want full control and a lower cost for the same parts.
More HP OMEN 45L Questions
Is the “HP Olem 45L” the same as the HP OMEN 45L?
Yes. “HP Olem 45L” is a common misspelling of HP OMEN 45L, and it refers to the same desktop line.
What is the HP OMEN 45L latest model?
The newest naming is the HP OMEN MAX 45L, offered with AMD Ryzen 9 9900X3D and RTX 5090 versions. The 2025 GT22 OMEN 45L reviewed here uses the Intel Core Ultra 9 285K.
Is the HP OMEN 45L with RTX 5090 worth it?
It is worth it only if you want the strongest GPU in a major-brand PC and accept the CPU clock findings. Gamers on a budget should look at an RTX 5080 system instead.
Does the HP OMEN 45L have a 1200W power supply?
Yes, the teardown found a 1200W 80 Plus Gold power supply, enough for an RTX 5090 system.
Can the HP OMEN 45L run DDR5 at full speed?
Yes, after you enable the HP XMP Profile in the BIOS. GamersNexus reported it ran at DDR5-4800 until then.
Is the HP OMEN 45L good for 4K gaming?
Yes. The RTX 5090 is built for 4K at high refresh rates with DLSS 4. Frame rates depend on the game and settings.
Frequently Asked Questions
Is the HP OMEN 45L easy to upgrade?
Largely yes for storage, memory and the graphics card, thanks to tool-less access. The motherboard is a compact HP-branded Z890 micro-ATX board and the LGA 1851 socket is a dead-end platform, so CPU and cooling upgrades are more limited than on a custom build.
Who should buy the HP OMEN 45L?
It is for enthusiasts and professionals who want elite gaming and content-creation performance from a major brand. Most gamers do not need this level of hardware and would be better served by a mid-range system.
Is the HP OMEN 45L good for content creation and AI work?
Yes, exceptionally. The RTX 5090, Core Ultra 9 285K, 64GB of DDR5 and 2TB SSD make it well suited to high-resolution video editing, 3D rendering and demanding local AI workloads.
Does the HP OMEN 45L come with Windows 11 Pro?
Yes. This configuration ships with Windows 11 Pro and Microsoft Copilot, which adds the Pro edition’s extra features on top of the standard gaming experience.
Affiliate Disclosure: As an Amazon Associate, we earn from qualifying purchases. If you click a link and make a purchase, we may earn a small commission at no extra cost to you. Prices and availability are accurate as of publication and may change.
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