Samsung Galaxy Book4 Ultra 16" Intel Core Ultra 7 155H 1.4GHz / Nvidia GeForce RTX 4050 Laptop / 16GB RAM / 1TB SSD specifications and in-depth review

Samsung Galaxy Book4 Ultra 16" Intel Core Ultra 7 155H 1.4GHz / Nvidia GeForce RTX 4050 Laptop / 16GB RAM / 1TB SSD

Manufacturer: Samsung

The Samsung Galaxy Book4 Ultra 16″ is a productivity-focused laptop built around Intel's Core Ultra 7 155H processor and Nvidia's GeForce RTX 4050 Laptop GPU. It features a 16″ OLED touchscreen with a resolution of 2880 x 1800 pixels, a 120Hz refresh rate, and anti-reflection coating, making it a visually capable machine for content-heavy workflows. The chassis measures 355.4 x 250.4 x 16.5 mm and weighs 1860 g, with a backlit keyboard and a 1-year warranty included.

Under the hood, the system ships with 16GB of DDR5 RAM — expandable up to 96GB — alongside a 1TB NVMe SSD. The CPU operates at a base speed of 1.4GHz across six performance cores, with a turbo ceiling of 4.8GHz and 22 threads total. On the graphics side, the RTX 4050 Laptop delivers 12.13 TFLOPS of floating-point performance, 6GB of GDDR6 VRAM on a 96-bit bus, and supports ray tracing, DLSS, and DirectX 12 Ultimate. Connectivity includes two Thunderbolt 4 ports, one USB 3.2 Gen 2 Type-A port, HDMI 2.1a, Wi-Fi 6E, Bluetooth 5.3, and an external memory slot, alongside a 76Wh battery for sustained use.

Pros
  • The 16-inch OLED touchscreen with a 2880x1800 resolution, 120Hz refresh rate, and anti-reflection coating provides a sharp and smooth visual experience for productivity and content work
  • Two Thunderbolt 4 ports with USB 4 40Gbps support offer fast data transfer and flexible external device connectivity
  • The fingerprint scanner and 3D facial recognition provide two distinct hardware-level security options for user authentication
  • Support for up to 4 simultaneous displays via the GPU adds meaningful flexibility for multi-monitor workflows
  • The CPU supports big.LITTLE technology across 22 threads with a turbo clock of 4.8GHz, enabling adaptive workload handling
  • RAM is upgradeable up to 96GB, offering considerable headroom for memory-intensive tasks beyond the base 16GB configuration
Cons
  • With no RJ45 port, wired ethernet connectivity requires an external adapter
  • The absence of any USB-C Gen 1 or Gen 2 ports limits compatibility with standard USB-C accessories that do not support Thunderbolt or USB 4
  • At 1860g, the weight may be noticeable for users who frequently carry the laptop throughout the day
  • The laptop is not weather-sealed or splashproof, offering no protection against liquid exposure
  • The single-year warranty period is relatively short for a device in the productivity laptop category
  • There is no optical disc drive, which may be a limitation for users who still work with physical media
Who is this for?

This laptop is well-suited to professionals and demanding users who need a capable productivity machine at their desk or on the move. The 16-inch OLED touchscreen at 120Hz makes it a strong fit for content creators, designers, and media professionals who benefit from accurate, high-resolution visuals. The RTX 4050 GPU with ray tracing and DLSS support, combined with up to 96GB of upgradeable RAM and a 1TB NVMe SSD, accommodates users running GPU-accelerated workloads such as video editing, 3D rendering, or data processing pipelines. The dual Thunderbolt 4 ports and multi-display support for up to four screens also make it a practical choice for power users who rely on expanded desktop setups or high-bandwidth peripherals.

Who is this NOT for?

Users who prioritize lightweight portability may find the 1860g weight less convenient for daily commuting or travel-heavy routines. The absence of an RJ45 ethernet port and no weather sealing makes this a poor match for field or industrial environments where a wired network connection or basic liquid resistance is expected. Those looking for a casual everyday laptop with minimal hardware needs would find the 115W TDP and active cooling system unnecessary, and users who depend on a broad range of USB-C accessories may run into compatibility friction given the lack of standard USB 3.2 Gen 1 or Gen 2 Type-C ports alongside the Thunderbolt 4 connections.

Design:

Type Productivity
weight 1860 g
Uses a fanless design
Has a backlit keyboard
warranty period 1 years
volume 1468.37064 cm³
width 355.4 mm
height 250.4 mm
thickness 16.5 mm
is weather-sealed (splashproof)

The Samsung Galaxy Book4 Ultra 16″ is classified as a productivity laptop with a physical footprint of 355.4 x 250.4 mm and a thickness of 16.5 mm, resulting in a total volume of roughly 1468.37 cm³. It weighs 1860 g and comes equipped with a backlit keyboard for comfortable use in low-light environments. The laptop does not use a fanless design and is not weather-sealed or splashproof. It carries a standard 1-year warranty.

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 Galaxy Book4 Ultra 16″ features a 16″ OLED/AMOLED touchscreen with a resolution of 2880 x 1800 pixels, yielding a pixel density of 212.26 ppi for a sharp visual output. The display runs at a 120Hz refresh rate and includes an anti-reflection coating to reduce glare in brighter environments. The system supports up to 4 connected displays simultaneously, offering flexibility for multi-monitor setups.

Performance:

RAM 16GB
Uses flash storage
internal storage 1024GB
CPU speed 6 x 1.4 & 8 x 0.9 GHz
CPU threads 22 threads
VRAM 6GB
floating-point performance 12.13 TFLOPS
GDDR version GDDR6
texture rate 204.8 GTexels/s
pixel rate 113.76 GPixel/s
Is an NVMe SSD
DirectX version DirectX 12 Ultimate
GPU clock speed 1605 MHz
uses multithreading
maximum memory amount 96GB
DDR memory version 5
turbo clock speed 4.8GHz
GPU turbo 2370 MHz
PCI Express (PCIe) version 4
semiconductor size 4 nm
has XeSS (XMX)
Supports 64-bit

The Galaxy Book4 Ultra 16″ is equipped with 16GB of DDR5 RAM, upgradeable to a maximum of 96GB, paired with a 1TB NVMe SSD using flash storage over a PCIe 4.0 interface. The CPU runs at speeds of 6 x 1.4 GHz and 8 x 0.9 GHz across 22 threads, with multithreading enabled and a turbo clock speed reaching 4.8GHz, built on a 4 nm semiconductor process with 64-bit support. On the graphics side, the GPU carries 6GB of GDDR6 VRAM, a base clock of 1605 MHz boosting up to 2370 MHz, and delivers 12.13 TFLOPS of floating-point performance alongside a texture rate of 204.8 GTexels/s, a pixel rate of 113.76 GPixel/s, and support for DirectX 12 Ultimate; XeSS (XMX) is not supported on this configuration.

Benchmarks:

PassMark (G3D) result 17148
PassMark result 24879
PassMark result (single) 3468

In PassMark testing, the Galaxy Book4 Ultra 16″ achieves an overall score of 24,879, with a single-core result of 3,468 reflecting the per-core throughput of the CPU. The GPU registers a PassMark G3D score of 17,148, providing a standardized indication of its graphics processing capability.

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 2.1a
DisplayPort outputs 0
USB 2.0 ports 0
has AirPlay
mini DisplayPort outputs 0
has a VGA connector

The Galaxy Book4 Ultra 16″ offers a focused but capable port selection, headlined by two Thunderbolt 4 ports that also function as USB 4 40Gbps connections, alongside a single USB 3.2 Gen 2 Type-A port; there are no USB-C Gen 1 or Gen 2 ports, no USB 2.0 ports, and no RJ45 ethernet port. Video output is handled by one HDMI 2.1a port, while DisplayPort, mini DisplayPort, and VGA outputs are absent. Wireless connectivity covers Wi-Fi 4, 5, 6, and 6E standards along with Bluetooth 5.3, and the laptop includes an external memory slot for expandable storage. AirPlay is not supported.

Battery:

battery size 76 Wh
Has a MagSafe power adapter

The Galaxy Book4 Ultra 16″ is fitted with a 76 Wh battery to support extended use between charges. The laptop does not include a MagSafe power adapter.

Features:

has stereo speakers
has a socket for a 3.5 mm audio jack
megapixels (front camera) 2MP
supports ray tracing
supports DLSS
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 Galaxy Book4 Ultra 16″ includes stereo speakers with Dolby Atmos support and a 3.5 mm headset jack, while audio input is handled by a dual-microphone setup with voice command functionality. Security is covered through both a fingerprint scanner and 3D facial recognition. The front-facing camera captures at 2MP, and the GPU supports ray tracing and DLSS for enhanced graphics rendering. The laptop does not include an S/PDIF output, optical disc drive, or motion and location sensors such as a gyroscope, accelerometer, compass, or GPS.

Miscellaneous:

clock multiplier 38
number of transistors 18900 million
AMD SAM / Intel Resizable BAR Intel Resizable BAR
has LHR
Thermal Design Power (TDP) 115W
Supports 3D
Supports multi-display technology
OpenCL version 3
OpenGL version 4.6
Supports ECC memory
memory bus width 96-bit
effective memory speed 16000 MHz
maximum memory bandwidth 192 GB/s
render output units (ROPs) 48
texture mapping units (TMUs) 80
shading units 2560
Has Double Precision Floating Point (DPFP)
GPU memory speed 2000 MHz
GPU architecture Ada Lovelace
PassMark result (overclocked) 24880
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
GPU execution units 8
Has integrated graphics
memory channels 2
RAM speed (max) 7467 MHz
Uses big.LITTLE technology

The CPU in the Galaxy Book4 Ultra 16″ uses a BGA 2049 socket, a clock multiplier of 38, a 24 MB L3 cache, and a thermal design power of 115W, with a maximum operating temperature of 110°C; it supports big.LITTLE technology, NX bit, ECC memory, and instruction sets including MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2, though the multiplier is not unlocked. The system also features integrated graphics alongside the discrete GPU, with RAM running across 2 memory channels at up to 7467 MHz. On the GPU side, the Ada Lovelace architecture delivers 2560 shading units, 80 texture mapping units, 48 ROPs, and 8 execution units, backed by a 96-bit memory bus running at 2000 MHz with an effective speed of 16000 MHz and a maximum bandwidth of 192 GB/s; Intel Resizable BAR is supported, LHR is not present, and the GPU supports multi-display output, stereoscopic 3D, and Double Precision Floating Point. The chip is built with 18,900 million transistors and supports OpenCL 3 and OpenGL 4.6, while the overclocked PassMark result stands at 24,880.

Final Verdict

The Samsung Galaxy Book4 Ultra 16″ is a well-specified productivity laptop that brings together a strong set of hardware credentials for users with demanding workflows. Its 16-inch OLED touchscreen with a 120Hz refresh rate, RTX 4050 GPU with ray tracing and DLSS support, and a CPU capable of reaching 4.8GHz across 22 threads make it a capable platform for content creation, GPU-accelerated tasks, and multi-display productivity setups. While its weight and the absence of certain connectivity options like RJ45 or standard USB-C ports mean it is not the most universally flexible option, users who need a high-resolution display, scalable memory up to 96GB, and fast Thunderbolt 4 connectivity will find it a focused and coherent machine for serious desktop-adjacent use.