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HP Omen 35L (Ultra 9 285K / RTX 5080 / 64GB RAM / 2TB SSD) specifications and in-depth review

HP Omen 35L (Ultra 9 285K / RTX 5080 / 64GB RAM / 2TB SSD)

Manufacturer: HP

The HP Omen 35L is a desktop gaming PC built around Intel's Core Ultra 9 285K processor and NVIDIA's RTX 5080 graphics card. With a Z890 chipset, LGA 1851 socket, and support for Intel Resizable BAR, the system is configured to take full advantage of its high-end components. 64GB of DDR5 RAM running at 6400 MHz sits alongside a 2TB NVMe SSD, providing substantial storage and memory headroom for demanding workloads and gaming sessions alike.

The RTX 5080 GPU is based on NVIDIA's Blackwell architecture and delivers 56.34 TFLOPS of floating-point performance through 10,752 shading units and 336 texture mapping units, backed by a 256-bit memory bus and 960 GB/s of memory bandwidth. The card supports DirectX 12 Ultimate, ray tracing, DLSS, and can drive up to four displays simultaneously via three DisplayPort outputs and one HDMI 2.1 port. Connectivity options include Wi-Fi 7, Bluetooth 5.4, a range of USB ports spanning USB 2.0 through USB 3.2 Gen 2, and a single RJ45 Ethernet port.

Pros
  • The RTX 5080 GPU delivers 56.34 TFLOPS of floating-point performance backed by 16GB of GDDR7 VRAM and 960 GB/s of memory bandwidth, enabling it to handle graphically demanding workloads at high fidelity
  • With 64GB of DDR5 RAM running at 6,400 MHz and a 2TB NVMe SSD, the system offers substantial storage and memory capacity for multitasking and large game libraries
  • Wi-Fi 7 support alongside Bluetooth 5.4 ensures access to the latest wireless standards for both networking and peripheral connectivity
  • The Intel Core Ultra 9 285K processor features an unlocked multiplier and big.LITTLE architecture with 24 threads, reaching a turbo speed of 5.7 GHz for flexible workload handling
  • Four simultaneous display outputs — three DisplayPort and one HDMI 2.1 — provide considerable flexibility for multi-monitor setups
  • Support for ray tracing and DLSS on the GPU adds rendering capability options for compatible titles
Cons
  • The 360W CPU TDP indicates high power consumption, which will demand a robust power supply and adequate ventilation
  • There are no USB 4 or Thunderbolt ports of any version, limiting high-bandwidth peripheral and external device options
  • The maximum supported RAM is capped at 64GB with only two memory channels, leaving no room for future memory expansion beyond the current configuration
  • Air-water cooling is not included, meaning thermal management depends entirely on whatever cooling solution is separately provided
  • The warranty period covers only one year, which is relatively short for a high-end desktop system
Who is this for?

This system is well-matched to users who run graphically intensive games and creative workloads that benefit from high VRAM capacity, ray tracing support, and DLSS, given the RTX 5080's 16GB of GDDR7 memory and 56.34 TFLOPS of compute throughput. The Intel Core Ultra 9 285K with its unlocked multiplier and 5.7 GHz turbo speed suits those who want headroom for overclocking or sustained multi-threaded processing, while 64GB of DDR5 RAM paired with a 2TB NVMe SSD accommodates large project files, game libraries, and heavy multitasking without storage or memory bottlenecks. Users who operate multi-monitor setups will also find the four simultaneous display outputs, including three DisplayPort connections and one HDMI 2.1 port, practical for productivity or immersive gaming environments.

Who is this NOT for?

Users who need high-bandwidth peripheral connectivity will find this system limiting, as there are no USB 4 or Thunderbolt ports of any version, restricting the use of fast external storage devices, docking stations, or professional peripherals that rely on those interfaces. The 360W CPU TDP and the absence of an included air-water cooling solution make this a poor fit for space-constrained or thermally sensitive environments where heat management is a concern. Additionally, those who anticipate needing to expand system memory beyond 64GB will find the configuration at its maximum capacity with no room to grow, making it a weak match for workloads that are expected to scale significantly in memory demand over time.

General info:

SSD storage capacity 2000GB
Is an NVMe SSD ✓
volume 12502.56 cm³
thickness 244 mm
height 244 mm
width 210 mm

The HP Omen 35L is equipped with a 2TB NVMe SSD, offering fast solid-state storage through the NVMe interface. The chassis measures 244 mm in both height and thickness, with a width of 210 mm, resulting in a total volume of 12,502.56 cm³ — a relatively compact footprint for a full-featured desktop gaming PC.

Graphics card:

VRAM 16GB
floating-point performance 56.34 TFLOPS
effective memory speed 30000 MHz
GPU clock speed 2300 MHz
GPU memory speed 1875 MHz
GPU turbo 2620 MHz
GDDR version GDDR7
DirectX version DirectX 12 Ultimate
PCI Express (PCIe) version 5
supports ray tracing ✓
texture rate 880 GTexels/s
pixel rate 293.4 GPixel/s
maximum memory bandwidth 960 GB/s
memory bus width 256-bit
supports DLSS ✓
supported displays 4
semiconductor size 5 nm
texture mapping units (TMUs) 336
shading units 10752
render output units (ROPs) 112
OpenGL version 4.6
OpenCL version 3
has LHR ✕
Supports multi-display technology ✓
Has Double Precision Floating Point (DPFP) ✓
Supports 3D ✓
has RGB lighting ✕
number of transistors 45600 million

The graphics card carries 16GB of GDDR7 VRAM across a 256-bit memory bus, reaching an effective memory speed of 30,000 MHz and a maximum memory bandwidth of 960 GB/s. Its base GPU clock runs at 2,300 MHz and boosts up to 2,620 MHz, contributing to a floating-point performance figure of 56.34 TFLOPS. The card is built on a 5 nm process node and houses 45,600 million transistors, 10,752 shading units, 336 texture mapping units, and 112 render output units, yielding a texture rate of 880 GTexels/s and a pixel rate of 293.4 GPixel/s. It connects via PCIe 5, supports up to four displays simultaneously through multi-display technology, and is compatible with DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3. Ray tracing, DLSS, stereoscopic 3D, and Double Precision Floating Point (DPFP) are all supported, while LHR and RGB lighting are absent.

CPU:

CPU speed 8 x 3.7 & 16 x 3.2 GHz
Has integrated graphics ✓
Has an unlocked multiplier ✓
L2 cache 40 MB
L3 cache 36 MB
turbo clock speed 5.7GHz
CPU threads 24 threads
uses multithreading ✕
Turbo Boost version 2
clock multiplier 37
Supports 64-bit ✓
CPU temperature 105 °C

The processor runs across 24 threads with a configuration of 8 cores at 3.7 GHz and 16 cores at 3.2 GHz, reaching a turbo clock speed of 5.7 GHz via Turbo Boost version 2 and a clock multiplier of 37. It supports 64-bit processing, includes integrated graphics, and features an unlocked multiplier for manual frequency adjustments. Cache consists of 40 MB of L2 and 36 MB of L3, while the maximum rated CPU temperature sits at 105 °C. Multithreading is not enabled on this configuration.

Benchmarks:

Geekbench 6 result (multi) 22722
Geekbench 6 result (single) 3215
PassMark result 67565
PassMark result (single) 5094
PassMark result (overclocked) 67872

In Geekbench 6, the processor scores 22,722 in the multi-core test and 3,215 in the single-core test. PassMark results place it at 67,565 in the standard multi-threaded run and 5,094 in the single-threaded test, with the overclocked PassMark result reaching 67,872.

Memory:

RAM 64GB
RAM speed 6400 MHz
DDR memory version 5

The system is equipped with 64GB of DDR5 RAM running at a speed of 6,400 MHz, providing a substantial amount of high-frequency memory for handling demanding tasks and workloads.

Connectivity:

Wi-Fi version Wi-Fi 6E (802.11ax), Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n), Wi-Fi 7 (802.11be)
supports Wi-Fi ✓
USB 2.0 ports 6
USB 3.2 Gen 2 ports (USB-A) 1
USB 3.2 Gen 1 ports (USB-A) 3
USB 3.2 Gen 2 ports (USB-C) 1
USB 4 40Gbps ports 0
USB 4 20Gbps ports 0
USB 3.2 Gen 2x2 ports 0
USB 3.2 Gen 1 ports (USB-C) 1
RJ45 ports 1
Thunderbolt 4 ports 0
Thunderbolt 3 ports 0
DisplayPort outputs 3
HDMI version HDMI 2.1
HDMI ports 1
Has Bluetooth ✓
Bluetooth version 5.4
has an external memory slot ✕
DVI outputs 0
Has S/PDIF Out port ✓
has a socket for a 3.5 mm audio jack ✓
has a VGA connector ✕

Wireless connectivity covers Wi-Fi 7 (802.11be) along with Wi-Fi 6E, 6, 5, and 4, complemented by Bluetooth 5.4. On the wired side, a single RJ45 port handles Ethernet, while the USB layout includes six USB 2.0 ports, three USB 3.2 Gen 1 USB-A ports, one USB 3.2 Gen 2 USB-A port, one USB 3.2 Gen 2 USB-C port, and one USB 3.2 Gen 1 USB-C port; USB 4, USB 3.2 Gen 2x2, Thunderbolt 3, and Thunderbolt 4 are not present. Display outputs consist of three DisplayPort connections and one HDMI 2.1 port, with no DVI or VGA connectors available. Audio connectivity includes a 3.5 mm headset jack and an S/PDIF output, while an external memory slot is not included.

Miscellaneous:

has an HDMI output ✓
AMD SAM / Intel Resizable BAR Intel Resizable BAR
GPU architecture Blackwell
USB-C ports 0
Has air-water cooling ✕
Thermal Design Power (TDP) 360W
mini DisplayPort outputs 0
Supports ECC memory ✓
has XeSS (XMX) ✕
chipset Z890
Type Desktop
CPU socket LGA 1851
instruction sets MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2
Has NX bit ✓
memory channels 2
RAM speed (max) 6400 MHz
maximum memory amount 64GB
Uses big.LITTLE technology ✓
warranty period 1 years

This desktop system is built on the Z890 chipset with an LGA 1851 socket and employs big.LITTLE technology for its CPU configuration, which carries a thermal design power of 360W. The GPU is based on the Blackwell architecture and benefits from Intel Resizable BAR support, while XeSS is not available. Memory support extends to a maximum of 64GB across two channels, with a top RAM speed of 6,400 MHz, and ECC memory is supported. The CPU supports the NX bit and is compatible with instruction sets including MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2. An HDMI output is present, though mini DisplayPort outputs and USB-C ports are absent, and air-water cooling is not included. The system comes with a 1-year warranty.

Final Verdict

The HP Omen 35L (Ultra 9 285K / RTX 5080 / 64GB RAM / 2TB SSD) is a high-specification desktop gaming PC that brings together a capable processor and a GPU with 56.34 TFLOPS of floating-point performance, 16GB of GDDR7 VRAM, and full support for ray tracing and DLSS — a combination that addresses the demands of modern graphically intensive workloads. The 64GB of DDR5 RAM, 2TB NVMe SSD, and Wi-Fi 7 support round out a well-equipped package for users whose workflows require both speed and capacity. That said, the absence of Thunderbolt or USB 4 ports, the high thermal output, and a memory configuration that leaves no room for future expansion are real constraints worth considering. For users whose requirements align with what this system offers, the HP Omen 35L represents a thoroughly specified desktop built for sustained, demanding use.