HP OmniStudio X All-in-One 27-cs0070t 27" Intel Core Ultra 7 155H / 16GB RAM / 1TB SSD specifications and in-depth review

HP OmniStudio X All-in-One 27-cs0070t 27" Intel Core Ultra 7 155H / 16GB RAM / 1TB SSD

Manufacturer: HP

The HP OmniStudio X All-in-One 27-cs0070t is a 27-inch all-in-one desktop that combines a touch-enabled display with a built-in 5MP front camera and 3D facial recognition for hands-free login. It ships with a 1TB flash-based SSD and 16GB of DDR5 RAM running at 5600 MHz, alongside stereo speakers and a dual-microphone setup. A privacy shutter over the camera, a top energy efficiency rating, and an included stylus round out a feature set oriented toward everyday productivity and content interaction.

The display measures 27 inches at 1920 x 1080 resolution with a pixel density of 81 ppi, a typical brightness of 300 nits, an anti-reflection coating, and 99% sRGB coverage, though it does not support HDR10 or Dolby Vision. The processor uses a big.LITTLE architecture with six cores at 1.4 GHz and eight cores at 0.9 GHz, reaching a turbo frequency of 4.8 GHz across 22 threads within a 28W TDP envelope. Connectivity includes Wi-Fi 7, Bluetooth 5.4, two USB-C ports, four USB 2.0 ports, two HDMI outputs, and a single RJ45 port, while graphics are handled by the integrated Arc Xe-LPG 128EU with support for DirectX 12 Ultimate and up to four external displays.

Pros
  • Wi-Fi 7 support with full backward compatibility down to Wi-Fi 4 ensures broad wireless flexibility
  • 3D facial recognition provides hands-free biometric login without requiring a fingerprint scanner
  • The 27-inch touch screen with 99% sRGB coverage and anti-reflection coating supports both standard and stylus-based input
  • A stylus is included in the box, enabling direct on-screen annotation and drawing without additional accessories
  • Stereo speakers and dual microphones are built in, supporting audio input and output without external peripherals
  • Memory is expandable up to 96GB across two channels, giving the system significant headroom beyond the installed 16GB
Cons
  • The 1920 x 1080 resolution on a 27-inch panel results in a low pixel density of 81 ppi, which can make fine details appear less sharp at typical viewing distances
  • No HDR support of any kind — HDR10, HDR10+, and Dolby Vision are all absent
  • The display is fixed at 60Hz with no higher refresh rate option
  • An external power supply is required as there is no internal power brick
  • No external memory card slot is available, limiting quick media transfers
  • Portrait mode orientation is not supported, reducing display flexibility for vertical content or mounting configurations
Who is this for?

This all-in-one is well matched to home office users and general productivity workflows where a large touch-enabled display, built-in microphones, and stereo speakers reduce the need for external peripherals. The inclusion of a stylus and touch screen makes it a practical choice for users who annotate documents, sketch ideas, or interact directly with on-screen content. Its Wi-Fi 7 support and expandable memory up to 96GB also suit users who need reliable wireless connectivity and room to grow their RAM over time without replacing the machine.

Who is this NOT for?

Users who work with color-critical visuals at high detail levels will find the 81 ppi pixel density on the 27-inch 1080p panel limiting, as fine text and imagery appear noticeably softer than on higher-resolution displays. The absence of any HDR support makes it unsuitable for content creators or viewers who rely on HDR workflows. Additionally, the integrated Arc Xe-LPG 128EU GPU is not capable of handling demanding 3D rendering, video editing acceleration, or modern gaming at meaningful settings, so users with those workloads will find the graphics performance insufficient.

Performance:

CPU speed 6 x 1.4 & 8 x 0.9 GHz
RAM 16GB
GPU clock speed 300 MHz
PassMark result 24879
PassMark result (single) 3468
CPU threads 22 threads
DDR memory version 5
GPU turbo 2250 MHz
RAM speed 5600 MHz
semiconductor size 7 nm

The CPU runs a hybrid core layout with six cores at 1.4 GHz and eight cores at 0.9 GHz, spread across 22 threads on a 7 nm process. System memory consists of 16GB of DDR5 running at 5600 MHz, and the integrated GPU operates at a base clock of 300 MHz with a turbo ceiling of 2250 MHz. In benchmark testing, the system scores 24,879 in PassMark multi-threaded and 3,468 in the single-threaded test.

Display:

pixel density 81 ppi
resolution 1920 x 1080 px
has anti-reflection coating
brightness (typical) 300 nits
screen size 27"
refresh rate 60Hz
supports Dolby Vision
supports HDR10+
supports HDR10
supported displays 4
Has a curved display
has a touch screen

The display measures 27 inches with a flat, non-curved panel running at 1920 x 1080 resolution and a pixel density of 81 ppi, refreshing at 60Hz with a typical brightness of 300 nits. It includes an anti-reflection coating and supports touch input, though it does not support HDR10, HDR10+, or Dolby Vision. The system can drive up to 4 displays in total, extending output capability beyond the built-in screen.

Connectivity:

Wi-Fi version Wi-Fi 7 (802.11be), Wi-Fi 6E (802.11ax), Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n)
Bluetooth version 5.4
supports Ethernet
USB-C ports 2
has an external memory slot
has an HDMI output
HDMI ports 2
has a socket for a 3.5 mm audio jack
USB 2.0 ports 4
RJ45 ports 1
Has USB Type-C

Wireless connectivity reaches up to Wi-Fi 7 (802.11be) with backward compatibility covering Wi-Fi 6E, 6, 5, and 4, alongside Bluetooth 5.4 and a single RJ45 port for wired Ethernet. The USB layout includes two USB-C ports and four USB 2.0 ports, while two HDMI outputs handle external display connections. A 3.5mm audio jack is present, but there is no external memory card slot available.

Features:

has Dolby Atmos
has a front camera
megapixels (front camera) 5MP
has an ambient light sensor
Uses 3D facial recognition
Has a fingerprint scanner

The unit includes a 5MP front camera with 3D facial recognition for biometric login, while a fingerprint scanner is not present. There is no ambient light sensor, and Dolby Atmos audio is not supported.

Design:

Has an internal power supply
has a privacy shutter
supports portrait mode
height 537 mm
width 612 mm
weight 8600 g

The unit measures 612 mm wide and 537 mm tall, weighing 8600 g, and does not have an internal power supply, meaning an external power brick is required. It features a privacy shutter for the camera but does not support portrait mode orientation.

General info:

warranty period 1 years
internal storage 1024GB
Uses flash storage
number of microphones 2
has stereo speakers
Stylus included
has top energy efficiency rating

Internal storage comes to 1024GB of flash-based storage, and the system ships with a stylus included alongside stereo speakers and two built-in microphones for audio input. It carries a top energy efficiency rating and comes with a one-year warranty.

Miscellaneous:

PassMark result (overclocked) 24880
shading units 1024
render output units (ROPs) 32
texture mapping units (TMUs) 64
GPU name Arc Xe-LPG 128EU
CPU socket BGA 2049
Type Laptop
clock multiplier 38
Has an unlocked multiplier
instruction sets MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2
L3 cache 24 MB
Has NX bit
Supports 64-bit
uses multithreading
CPU temperature 110 °C
PCI Express (PCIe) version 5
OpenCL version 3
OpenGL version 4.6
DirectX version DirectX 12 Ultimate
GPU execution units 8
Has integrated graphics
Supports ECC memory
memory channels 2
RAM speed (max) 7467 MHz
maximum memory amount 96GB
Thermal Design Power (TDP) 28W
turbo clock speed 4.8GHz
Uses big.LITTLE technology
sRGB coverage 99%

The laptop-class CPU uses a BGA 2049 socket with big.LITTLE architecture, a 28W TDP, a turbo frequency of 4.8 GHz, 24 MB of L3 cache, a clock multiplier of 38, and a maximum rated temperature of 110 °C; the multiplier is locked. It supports multithreading, 64-bit computing, an NX bit, and instruction sets including MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2. Memory can scale to 96GB across two channels at up to 7467 MHz, though ECC is not supported. The integrated Arc Xe-LPG 128EU GPU features 1024 shading units, 64 TMUs, 32 ROPs, and 8 execution units, connecting via PCIe 5 with support for DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3. The display covers 99% of the sRGB color space, and the overclocked PassMark result is recorded at 24,880.

Final Verdict

The HP OmniStudio X All-in-One 27-cs0070t positions itself as a capable everyday desktop for users who value a large touch-enabled workspace with minimal cable clutter. Its Wi-Fi 7 connectivity, stylus support, built-in biometric login, and memory expandability up to 96GB give it a practical edge for home office and light creative use. That said, the 1080p resolution on a 27-inch panel and the absence of dedicated graphics or HDR support mean it is better suited to general productivity than to visually demanding work. For users whose needs align with those strengths, the OmniStudio X delivers a well-rounded, peripheral-light all-in-one experience — but those requiring sharper visuals or heavier workload capacity should weigh its hardware ceiling carefully before committing.