Samsung Galaxy Book4 Pro 16" Intel Core Ultra 7 155H 1.4GHz / 32GB RAM / 1TB SSD specifications and in-depth review

Samsung Galaxy Book4 Pro 16" Intel Core Ultra 7 155H 1.4GHz / 32GB RAM / 1TB SSD

Manufacturer: Samsung

The Samsung Galaxy Book4 Pro 16″ (Ultra 7 155H) is a productivity-oriented laptop built around a 16-inch OLED touchscreen display with a 2880 x 1800 pixel resolution, 212 ppi pixel density, a 120Hz refresh rate, and anti-reflection coating. It is powered by the Intel Core Ultra 7 155H, a 22-thread processor with a turbo clock of 4.8 GHz and big.LITTLE architecture, paired with 32GB of DDR5 RAM and a 1TB NVMe PCIe 5 SSD. The chassis measures 355.4 x 250.4 x 12.5 mm and weighs 1560 g, with a backlit keyboard included.

Graphics are handled by the integrated Arc Xe-LPG 128EU GPU, which supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, with a boost clock of 2250 MHz. Connectivity includes two Thunderbolt 4 ports, two USB 4 40Gbps ports, one USB 3.2 Gen 2 Type-A port, an HDMI 2.1 output, Wi-Fi 6E, Bluetooth 5.3, and an external memory slot, though there is no RJ45 port or DisplayPort. The feature set covers a 2 MP front camera with 3D facial recognition, a fingerprint scanner, stereo speakers with Dolby Atmos, dual microphones, a 3.5 mm audio jack, and voice command support. The system can drive up to four external displays simultaneously.

Pros
  • The 16-inch OLED/AMOLED touchscreen with a 2880 x 1800 resolution, 120Hz refresh rate, and anti-reflection coating delivers a high-quality visual experience for productivity and media work
  • 32GB of DDR5 RAM with support for up to 96GB provides substantial headroom for demanding multitasking and memory-intensive workloads
  • Two Thunderbolt 4 ports with USB 4 40Gbps capability offer fast data transfer and flexible peripheral and display connectivity
  • At 12.5 mm thick and 1560 g, the chassis maintains a slim and relatively light profile for a 16-inch productivity laptop
  • Biometric security covers both a fingerprint scanner and 3D facial recognition, giving users two distinct login options
  • Dolby Atmos stereo speakers, dual microphones, a 3.5 mm audio jack, and a front camera make the device well-equipped for communication and media consumption without external accessories
Cons
  • No RJ45 Ethernet port is available, so wired network connections require an adapter
  • The absence of a gyroscope, accelerometer, and compass limits motion-sensing and location-aware functionality compared to more sensor-rich devices
  • There is no DisplayPort output, which may require adapters for users with DisplayPort-only external monitors
  • The laptop is not weather-sealed, leaving it without any splash or dust protection
  • GPS is not built in, restricting standalone location functionality to software-based solutions only
Who is this for?

This laptop is well-matched to professionals and power users who need a capable machine for demanding multitasking and productivity workflows, thanks to its 32GB of DDR5 RAM, 22-thread CPU with a 4.8 GHz turbo clock, and 1TB NVMe PCIe 5 SSD. The 16-inch OLED touchscreen with a 120Hz refresh rate and anti-reflection coating makes it a strong fit for users who work extensively with visual content or spend long hours in front of a display. The two Thunderbolt 4 ports, Wi-Fi 6E, and support for up to four external displays also suit users who need a versatile hub for a multi-screen desk setup or frequently connect to high-speed peripherals.

Who is this NOT for?

Users who require wired Ethernet connectivity without adapters will find the absence of an RJ45 port a persistent inconvenience, particularly in enterprise or office environments where wired networking is standard. The lack of a gyroscope, accelerometer, GPS, and compass makes the device unsuitable for scenarios that depend on motion sensing or location-aware applications. Additionally, the absence of weather sealing means the laptop is not a reliable choice for outdoor or field use where exposure to moisture or dust is a real possibility.

Design:

Type Productivity
weight 1560 g
Uses a fanless design
Has a backlit keyboard
volume 1112.402 cm³
width 355.4 mm
height 250.4 mm
thickness 12.5 mm
is weather-sealed (splashproof)

This is a productivity-category laptop with a 12.5 mm thin profile, measuring 355.4 x 250.4 mm and weighing 1560 g. It includes a backlit keyboard and uses an active cooling design rather than a fanless configuration. The chassis is not weather-sealed, so it offers no splashproof protection.

Display:

screen size 16"
resolution 2880 x 1800 px
pixel density 212.26 ppi
Display type OLED/AMOLED
has a touch screen
refresh rate 120Hz
has anti-reflection coating
supported displays 4

The laptop features a 16-inch OLED/AMOLED touchscreen with a resolution of 2880 x 1800 pixels at 212.26 ppi and a 120Hz refresh rate. An anti-reflection coating is applied to the panel surface, helping to reduce glare in varied lighting conditions. The system supports up to four simultaneous external displays in addition to the built-in screen.

Performance:

RAM 32GB
Uses flash storage
internal storage 1024GB
CPU speed 6 x 1.4 & 8 x 0.9 GHz
CPU threads 22 threads
Is an NVMe SSD
DirectX version DirectX 12 Ultimate
GPU clock speed 300 MHz
uses multithreading
maximum memory amount 96GB
DDR memory version 5
turbo clock speed 4.8GHz
GPU turbo 2250 MHz
PCI Express (PCIe) version 5
semiconductor size 7 nm
Supports 64-bit

The system is equipped with 32GB of DDR5 RAM, expandable to a maximum of 96GB, running alongside a 1TB NVMe SSD on a PCIe 5 interface for fast storage throughput. The CPU features 22 threads with a multi-cluster configuration of 6 cores at 1.4 GHz and 8 cores at 0.9 GHz, reaching a turbo clock of 4.8 GHz, and supports multithreading and 64-bit processing on a 7 nm fabrication node. The integrated GPU has a base clock of 300 MHz and boosts up to 2250 MHz, with DirectX 12 Ultimate support rounding out the graphics capability.

Benchmarks:

PassMark result 24879
PassMark result (single) 3468

In PassMark testing, the system scores 24,879 in the multi-core benchmark and 3,468 in the single-core test, reflecting the CPU's overall throughput capacity across both parallel and single-threaded workloads.

Connectivity:

USB 3.2 Gen 2 ports (USB-C) 0
USB 3.2 Gen 2 ports (USB-A) 1
USB 4 20Gbps ports 0
USB 4 40Gbps ports 2
Thunderbolt 4 ports 2
USB 3.2 Gen 1 ports (USB-C) 0
USB 3.2 Gen 1 ports (USB-A) 0
Thunderbolt 3 ports 0
has an HDMI output
supports Wi-Fi
Wi-Fi version Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E (802.11ax)
has an external memory slot
Bluetooth version 5.3
RJ45 ports 0
HDMI ports 1
HDMI version HDMI 2.1
DisplayPort outputs 0
USB 2.0 ports 0
has AirPlay
mini DisplayPort outputs 0
has a VGA connector

The laptop provides two Thunderbolt 4 ports (which also function as USB 4 40Gbps), one USB 3.2 Gen 2 Type-A port, and one HDMI 2.1 output, while DisplayPort, VGA, and RJ45 are absent. Wireless connectivity covers Wi-Fi 6E (with backward compatibility through Wi-Fi 4, 5, and 6) and Bluetooth 5.3. An external memory card slot is also included, and AirPlay is not supported.

Battery:

Has a MagSafe power adapter

Features:

has stereo speakers
has a socket for a 3.5 mm audio jack
megapixels (front camera) 2MP
has Dolby Atmos
Has a fingerprint scanner
number of microphones 2
Uses 3D facial recognition
has voice commands
has a front camera
Has S/PDIF Out port
has a gyroscope
has GPS
has an accelerometer
has a compass
Has an optical disc drive

The laptop includes stereo speakers with Dolby Atmos support, a 3.5 mm audio jack, and dual microphones for audio input. Biometric security is covered by both a fingerprint scanner and 3D facial recognition, and a 2 MP front camera is built in for video calls. Voice commands are supported. Motion sensors such as a gyroscope, accelerometer, and compass are not present, and there is no GPS, S/PDIF output, or optical disc drive.

Miscellaneous:

clock multiplier 38
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
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
CPU temperature 110 °C
OpenCL version 3
OpenGL version 4.6
GPU execution units 8
Has integrated graphics
Supports ECC memory
memory channels 2
RAM speed (max) 7467 MHz
Thermal Design Power (TDP) 28W
Uses big.LITTLE technology

The CPU is a laptop-class processor using a BGA 2049 socket with a clock multiplier of 38, a TDP of 28W, and a maximum operating temperature of 110 °C. It uses big.LITTLE architecture, supports NX bit for hardware-level security, and carries a 24 MB L3 cache, with RAM running at up to 7467 MHz across two memory channels. ECC memory is not supported, and the multiplier is locked. The integrated Arc Xe-LPG 128EU GPU features 1024 shading units, 64 TMUs, 32 ROPs, and 8 execution units, supporting OpenCL 3 and OpenGL 4.6. Supported CPU instruction sets include MMX, AES, AVX, AVX2, FMA3, F16C, SSE 4.1, and SSE 4.2. The overclocked PassMark result is recorded at 24,880.

Final Verdict

The Samsung Galaxy Book4 Pro 16″ (Ultra 7 155H) is a productivity laptop that makes a compelling case for users who prioritize display quality and processing capability in a slim form factor. Its 16-inch OLED touchscreen with a 120Hz refresh rate, paired with 32GB of DDR5 RAM and a fast NVMe PCIe 5 SSD, forms a well-rounded foundation for demanding workflows, creative tasks, and extended daily use. The dual Thunderbolt 4 ports, Wi-Fi 6E, and multi-display support extend its versatility for desk-bound setups, while the biometric security options and Dolby Atmos audio add meaningful day-to-day conveniences. Some connectivity gaps — notably the absence of an Ethernet port and DisplayPort output — may require adapters in certain environments, but for professionals seeking a thin, capable machine built around a high-quality display, the Galaxy Book4 Pro 16″ represents a focused and well-specified option.