LG Gram (2024) 16Z90S 16" Intel Core Ultra 5 125H 1.2GHz / 16GB RAM / 512GB SSD specifications and in-depth review

LG Gram (2024) 16Z90S 16" Intel Core Ultra 5 125H 1.2GHz / 16GB RAM / 512GB SSD

Manufacturer: LG

The LG Gram (2024) 16″ is a 16-inch laptop built around an unusually light chassis for its screen size, weighing just 1199 g at 16 mm thick. It features a 2560 x 1600 IPS LED-backlit display with an anti-reflection coating and supports up to four simultaneous external displays, making it well-suited to productivity-focused workflows that benefit from screen real estate. Its most notable practical attribute is a rated battery life of 24.5 hours from a 77 Wh cell, positioning it as a strong option for users who spend extended periods away from a power source.

The Intel Core Ultra 5 125H processor uses big.LITTLE architecture with four performance cores at 1.2 GHz and eight efficiency cores at 0.7 GHz, reaching 4.5 GHz turbo across 18 multithreaded threads within a 28W TDP envelope. The system ships with 16GB of DDR5 RAM across two channels — expandable up to 96GB — paired with a 512GB PCIe 5 NVMe SSD. Connectivity includes two USB 3.2 Gen 2 Type-A ports, one HDMI 2.1 output, an external memory card slot, Wi-Fi 6E, and Bluetooth 5.3, along with sleep-and-charge USB support. Benchmark results include a PassMark multi-thread score of 21104 and a Geekbench 6 multi-core score of 10239.

Pros
  • A rated battery life of 24.5 hours from a 77 Wh cell offers exceptional endurance for a 16-inch laptop, making it well-suited for full-day use without access to power
  • At 1199 g and 16 mm thick, the chassis is remarkably light and slim for a laptop with a 16-inch display
  • The 2560 x 1600 IPS panel at 188 ppi delivers a sharp, detailed image, and the anti-reflection coating helps maintain visibility across different lighting environments
  • The GPU supports up to four simultaneous external displays, providing meaningful flexibility for multi-monitor productivity setups
  • Sleep-and-charge functionality is supported, allowing USB devices to be charged even when the laptop is powered off
  • DDR5 RAM is expandable up to 96GB across two slots, leaving significant room for memory upgrades beyond the base 16GB configuration
Cons
  • No Thunderbolt 4, USB 4, or RJ45 ports are available, which limits high-speed peripheral connectivity and requires an adapter for wired ethernet
  • Neither a fingerprint scanner nor 3D facial recognition is included, leaving conventional password entry as the only sign-in method
  • The 60Hz display refresh rate may feel less fluid for users accustomed to higher-refresh panels during scrolling or fast-moving content
  • A backlit keyboard is not included, which reduces usability in low-light environments
  • The 512GB internal NVMe SSD may prove limiting for users who store large media libraries or work with substantial local datasets
  • No biometric or advanced security hardware is present despite the 16-inch productivity-oriented form factor
Who is this for?

The LG Gram (2024) 16″ is a strong fit for mobile professionals and students who prioritize all-day battery endurance without the weight penalty typically associated with larger laptops — at 1199 g and 16 mm thick, it remains genuinely portable despite its 16-inch panel. The 2560 x 1600 IPS display with an anti-reflection coating suits those who spend long hours reading, writing, or managing documents across multiple windows, and support for up to four external displays makes it equally capable at a desk-based multi-monitor setup. Users who frequently work in transit or away from outlets will particularly benefit from the 24.5-hour rated battery life and sleep-and-charge support.

Who is this NOT for?

Users who rely on fast, high-bandwidth peripherals or wired networking will find the port selection limiting, as there are no Thunderbolt 4, USB 4, or RJ45 ethernet ports available without an adapter. The 60Hz display refresh rate and integrated-only GPU make this laptop a poor match for anyone who needs smooth frame rates for gaming, motion-heavy video editing, or GPU-accelerated rendering workloads. Those who work in dim environments will also be frustrated by the absence of a backlit keyboard, and users who depend on biometric sign-in will find no fingerprint scanner or facial recognition available.

Design:

weight 1199 g
Uses a fanless design
Has a backlit keyboard
volume 1374.56 cm³
width 355 mm
height 242 mm
thickness 16 mm
is weather-sealed (splashproof)

The LG Gram (2024) 16″ has a notably slim and light physical profile for a 16-inch laptop, measuring 355 mm wide, 242 mm tall, and 16 mm thick, with a total volume of 1374.56 cm³ and a weight of just 1199 g. The chassis uses active cooling rather than a fanless design, and it is not weather-sealed against splashes or moisture. A backlit keyboard is not included.

Display:

screen size 16"
resolution 2560 x 1600 px
pixel density 188 ppi
Display type LCD, LED-backlit, IPS
has a touch screen
brightness (typical) 350 nits
refresh rate 60Hz
has anti-reflection coating
supported displays 4

The LG Gram (2024) 16″ features a 16-inch IPS LED-backlit panel with a 2560 x 1600 px resolution at 188 ppi, delivering a sharp and detailed image across its wide display area. Typical brightness is rated at 350 nits with a 60Hz refresh rate, and an anti-reflection coating helps reduce glare under varied lighting conditions. The screen is not a touchscreen, and the GPU supports connectivity to up to four simultaneous external displays.

Performance:

RAM 16GB
Uses flash storage
internal storage 512GB
CPU speed 4 x 1.2 & 8 x 0.7 GHz
CPU threads 18 threads
Is an NVMe SSD
DirectX version DirectX 12
GPU clock speed 300 MHz
uses multithreading
maximum memory amount 96GB
DDR memory version 5
turbo clock speed 4.5GHz
GPU turbo 2200 MHz
PCI Express (PCIe) version 5
semiconductor size 7 nm
Supports 64-bit

The LG Gram (2024) 16″ is powered by a hybrid-architecture processor built on a 7 nm process, pairing four performance cores at 1.2 GHz with eight efficiency cores at 0.7 GHz and reaching a turbo frequency of 4.5 GHz across 18 multithreaded threads, all within a 28W TDP. It ships with 16GB of DDR5 RAM expandable up to 96GB across two channels, alongside a 512GB PCIe 5 NVMe SSD for fast flash storage access. The integrated GPU runs at a base clock of 300 MHz with a turbo of 2200 MHz and supports DirectX 12, while the system operates fully in 64-bit mode.

Benchmarks:

Geekbench 6 result (multi) 10239
Geekbench 6 result (single) 2256
PassMark result 21104
PassMark result (single) 3400

The LG Gram (2024) 16″ records a PassMark multi-thread score of 21104 and a single-thread score of 3400, reflecting the processor's parallel and sequential throughput respectively. In Geekbench 6 testing, it achieves a multi-core score of 10239 and a single-core score of 2256, providing an additional measure of real-world CPU performance across both sustained and lightly-threaded workloads.

Connectivity:

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

The LG Gram (2024) 16″ keeps its wired port selection relatively lean, offering two USB 3.2 Gen 2 Type-A ports and one HDMI 2.1 output for external display connections, alongside a USB Type-C port and an external memory card slot. There are no Thunderbolt 3 or 4 ports, no USB 4 connections, no DisplayPort or VGA outputs, and no RJ45 ethernet port. Wireless connectivity covers Wi-Fi 6E, Wi-Fi 6, Wi-Fi 5, and Wi-Fi 4, with Bluetooth 5.3 for peripherals, and AirPlay is also supported.

Battery:

Battery life 24.5 hours
battery size 77 Wh
Has sleep-and-charge USB ports
Has a MagSafe power adapter

The LG Gram (2024) 16″ carries a 77 Wh battery with a rated life of 24.5 hours, making it one of the more endurance-focused options in its screen size category. Sleep-and-charge functionality is supported, allowing USB-connected devices to be charged while the laptop is powered down. A MagSafe power adapter is not included.

Features:

has stereo speakers
has a socket for a 3.5 mm audio jack
has Dolby Atmos
Stylus included
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 LG Gram (2024) 16″ includes stereo speakers, a 3.5 mm headset jack, a dual-microphone setup, and a front camera, covering the core audio and video requirements for everyday use and video calls. Dolby Atmos and S/PDIF output are not supported. Neither a fingerprint scanner nor 3D facial recognition is available for biometric sign-in, and voice commands are not supported. No stylus is included, and the device lacks motion and location sensors including a gyroscope, accelerometer, GPS, and compass. There is no optical disc drive.

Miscellaneous:

clock multiplier 36
PassMark result (overclocked) 22756
render output units (ROPs) 24
texture mapping units (TMUs) 48
shading units 768
GPU execution units 7
Type Laptop
instruction sets MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2
L3 cache 18 MB
Has an unlocked multiplier
Has NX bit
CPU temperature 110 °C
OpenCL version 3
OpenGL version 4.6
Has integrated graphics
Supports ECC memory
memory channels 2
RAM speed (max) 5600 MHz
Thermal Design Power (TDP) 28W
Uses big.LITTLE technology

The laptop CPU uses big.LITTLE technology with a clock multiplier of 36, a 28W TDP, and a maximum operating temperature of 110 °C, supported by 18 MB of L3 cache and a dual-channel memory configuration with a maximum RAM speed of 5600 MHz. The multiplier is locked and ECC memory is not supported, though NX bit protection is active alongside instruction set support for MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2. Graphics are handled by the integrated GPU, which includes 768 shading units, 48 texture mapping units, 24 render output units, and 7 execution units, with compatibility for OpenCL 3 and OpenGL 4.6. The overclocked PassMark result is recorded at 22756, and no discrete GPU is present.

Final Verdict

The LG Gram (2024) 16″ makes a clear and deliberate case for users who want a large-screen laptop without the usual weight and battery compromises that come with it. Its defining strength is the combination of a 1199 g chassis and a 24.5-hour rated battery life, which together set a high bar for mobile endurance among 16-inch laptops. The 2560 x 1600 IPS display with anti-reflection coating and support for up to four external displays add meaningful productivity value, though the lack of biometric security, a backlit keyboard, and high-bandwidth ports like Thunderbolt 4 or ethernet reflect tradeoffs that users with more demanding peripheral or connectivity needs should weigh carefully. For professionals and frequent travelers who prioritize portability and stamina above all else, the LG Gram (2024) 16″ is a coherent and well-executed option.