HP OMEN 45L A4ND8AV_1 2026, Core Ultra 9, 128GB, 1TB SSD, RTX 5090, Black

Equipped with a 24-core Intel Core Ultra 9 285K and an RTX 5090 with 32GB GDDR7 VRAM, this tower delivers top-tier computational and graphics throughput for demanding workloads. The 128GB of DDR5 RAM and a 360mm AIO cooler ensure sustained performance under heavy multitasking and rendering, while the 1200W PSU provides stable power delivery. This configuration is best for AI researchers running large language models locally and enthusiasts seeking uncompromised 4K gaming.

CPU Intel Core Ultra 9 285K
RAM 128 GB
Storage 1 TB
GPU NVIDIA GeForce RTX 5090
Form Factor mid-tower
psu w 1200
OS Windows 11 Home
HP OMEN 45L A4ND8AV_1 2026, Core Ultra 9, 128GB, 1TB SSD, RTX 5090, Black desktop
77 Overall Score

No current retailer price

Snapshot

The 30-Second Version

The HP OMEN 45L packs a 98th-percentile CPU and a chart-topping 128GB of RAM, making it an AI and multitasking beast. The RTX 5090 is a standout for gaming, but the 1TB SSD is a real letdown on a $6,410 machine. It's a spec-sheet champion that needs a storage upgrade right out of the box.

Pros & Cons

Pros

  • 128GB of DDR5 RAM is best-in-class 99th
  • RTX 5090 with 32GB VRAM is a standout for AI and 4K gaming 98th
  • Core Ultra 9 285K lands in the 98th percentile for CPU grunt 98th
  • 1200W PSU and 360mm AIO handle the heat with ease 76th
  • Thunderbolt 4 and a strong port selection

Cons

  • Only a 1TB SSD is disappointing at this price
  • Zero customer reviews makes it a blind buy
  • Weighs a back-breaking 20.86kg
  • No Wi-Fi 7, stuck on Wi-Fi 6E
  • Storage speed is just average for the category

The proof

Performance

This thing is a beast. The Core Ultra 9 285K is a top-tier chip, and in our benchmarks it's one of the best on the market, trailing only the most exotic workstation CPUs. You'll chew through rendering, compiling, and simulation work without a stutter. The real star for gamers and AI tinkerers is the RTX 5090 with 32GB of GDDR7. It's a standout performer, putting this rig in the 90th percentile for graphics. You can expect to max out 4K gaming at high refresh rates or run large language models locally without hitting a VRAM wall.

The 128GB of DDR5 RAM is the absolute best right now, which is overkill for pure gaming but a godsend for 8K video editing, complex 3D scenes, or running multiple VMs. The 360mm AIO keeps the CPU temps in check under load, and the 1200W PSU gives you plenty of headroom. Just don't expect to fill that RAM with assets from the SSD quickly. The single 1TB drive is a bottleneck on an otherwise chart-topping system.

Performance Percentiles

CPU 98.1
GPU 97.8
RAM 98.9
Ports 76.4
Storage 53.6
Reliability 70

Specifications

Full Specifications

Processor

CPU Intel Core Ultra 9 285K
Cores 24
Frequency 3.7 GHz
L3 Cache 36 MB

Graphics

GPU NVIDIA GeForce RTX 5090
Type Discrete
VRAM 32 GB
VRAM Type GDDR7

Memory & Storage

RAM 128 GB
RAM Generation DDR5
Storage 1 TB
Storage Type SSD

Build

Form Factor mid-tower
PSU 1200
Weight 20.9 kg / 46.0 lbs

Connectivity

USB-C Ports 2
USB Ports 4
Thunderbolt Thunderbolt 4
HDMI 1x HDMI
DisplayPort 3x DisplayPort
Wi-Fi Wi-Fi 6E
Bluetooth Bluetooth 5.4
Ethernet RJ-45

System

OS Windows 11 Home

vs Competition

Stacked against the competition, the OMEN 45L carves out a weird niche. The Lenovo Legion Tower 7i Gen 10 and HP OMEN GT22-3080 often come with more sensible storage configurations and better out-of-the-box tuning, but they rarely offer 128GB of RAM. The Apple Mac Studio M5 Max is a strong contender in the compact workstation space, but it can't touch this HP's raw RAM capacity or GPU flexibility. The Dell Area-51 and The Horizon Pcs Autherium Dragon are also in the mix, but none of them match the OMEN 45L's spec-sheet shock value. The HP wins on sheer numbers, but loses on balance. It's a drag racer with a fuel tank the size of a thimble.

Spec HP OMEN 45L A4ND8AV_1 Apple Mac Studio M5 Max Lenovo T Series Towers Legion Tower 5a Gen 10 Dell Desktop ECT1250 CLX SET TGMSETRTU5204BM MSI Aegis ZS2 A9NVP-1407US
CPU Intel Core Ultra 9 285K Apple M5 Max AMD Ryzen 7 7800X3D Intel Core Ultra 7 265 Intel Core i9 14900KF AMD Ryzen 9 9900X
RAM (GB) 128 64 32 32 64 32
Storage (GB) 1024 4096 4096 2048 8192 2048
GPU NVIDIA GeForce RTX 5090 Apple (40-Core) NVIDIA GeForce RTX 5070 Ti Intel UHD Graphics NVIDIA GeForce RTX 5070 NVIDIA GeForce RTX 5070
Form Factor mid-tower mini mid-tower sff mid-tower mid-tower
Psu W 1200 480 850 180 850 750
OS Windows 11 Home macOS Windows 11 Home Windows 11 Home Windows 11 Home Windows 11 Home
Compare Compare Compare Compare Compare
Product CPUGPURAMPortsStorageReliability
HP OMEN 45L A4ND8AV_1 98.197.898.976.453.670
Apple Mac Studio M5 Max Compare 95.883.698.489.198.199.3
Lenovo T Series Towers Legion Tower 5a Gen 10 Compare 73.493.178.188.498.170
Dell Desktop ECT1250 Compare 88.458.781.874.582.870
CLX SET TGMSETRTU5204BM Compare 94.989.396.584.299.211.6
MSI Aegis ZS2 A9NVP-1407US Compare 92.489.387.290.582.837.3

Price

Value & Pricing

At $6,410, the value proposition is tricky. You're paying a premium for the absolute top-end CPU and a massive 128GB RAM kit, which you'd struggle to even find in most pre-builts. The RTX 5090 alone accounts for a huge chunk of the cost. But the 1TB SSD feels like a cost-cutting move on a no-expense-spared build. You'll almost certainly need to budget for an immediate storage upgrade, which stings. If you can find a similar spec from a competitor with a 2TB or 4TB drive for a comparable price, that's the smarter buy.

Read more

Overview

The HP OMEN 45L A4ND8AV_1 is an absolute monster of a pre-built desktop, landing in the 99th percentile for RAM and 98th for CPU in our database. You're looking at a Core Ultra 9 285K paired with a staggering 128GB of DDR5 and an RTX 5090, which puts it in a different league for AI workloads and heavy multitasking. It's one of the best specced machines we've seen, period. The 1200W PSU and 360mm AIO cooler mean it's ready to run flat-out without breaking a sweat, and the port selection is well above average, giving you Thunderbolt 4 and plenty of USB connectivity.

But that raw power comes with some serious caveats. The 1TB SSD is a head-scratcher at this price, barely scraping into the middle of the pack for storage. And with zero customer reviews so far, you're buying on specs and trust alone, which is a big ask for a $6,410 machine. It's also a hefty 20.86kg, so don't plan on moving it around much. This is a no-compromises workstation that forgot to bring enough storage to the party.

Common Questions

Q: Is the 1TB SSD enough for gaming and AI work?

Honestly, no. Modern games can easily eat up 100-200GB each, and AI models and datasets will fill that 1TB drive in no time. With storage performance sitting in the 55th percentile, it's not even a particularly fast 1TB drive. You'll want to budget for a secondary NVMe drive immediately.

Q: Can this PC handle 4K gaming at high refresh rates?

Absolutely. The RTX 5090 is a 90th-percentile GPU in our database, and it's built for 4K. You can expect to push well over 100fps in demanding titles with settings maxed out. The 32GB of VRAM also means you won't run into texture buffer issues for years.

Q: Is 128GB of RAM overkill for a gaming PC?

For pure gaming, yes, it's total overkill. 32GB is the current sweet spot. This much RAM is aimed at professionals doing 8K video editing, 3D rendering, or running local LLMs. If you're just gaming, you're paying a huge premium for RAM you'll never use.

Who Should Skip This

Skip this if you're a pure gamer or don't have an immediate need for 128GB of RAM. You're paying a massive premium for memory that will sit idle in most games. The 1TB SSD is also a dealbreaker if you don't want to upgrade storage yourself. Look for a build with a 2TB or 4TB drive and 32GB or 64GB of RAM. You'll get a much better balanced machine and save a chunk of change.

Verdict

The HP OMEN 45L A4ND8AV_1 is a powerhouse for a very specific buyer: someone who needs 128GB of RAM and an RTX 5090 right now, and doesn't mind cracking the case open to add more storage on day one. It's a top-tier AI and workstation rig that also happens to be a monster gaming PC. But the lack of reviews and the baffling 1TB SSD hold it back from being an easy recommendation. If you're not maxing out that RAM, you can get a much better balanced system for less money.

Usage Scores

Overall (77)AI/LLM (89.7)Gaming (95.5)Portability (27.4)Creator (90.1)Business (74.5)Developer (83.6)Home Office (76.3)Workstation (86.6)
  • Overall77
  • AI/LLM89.7
  • Gaming95.5
  • Portability27.4
  • Creator90.1
  • Business74.5
  • Developer83.6
  • Home Office76.3
  • Workstation86.6

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