LG SuperSlim 15Z90ST-G.AD78A1

Intel 155H · Intel Arc Graphics · 16 GB · 1 TB

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Type Everyday
Processor Intel 155H
Graphics Intel Arc Graphics
Memory 16 GB
Storage 1 TB
Display 16 inch

LG SuperSlim 15Z90ST-G.AD78A1 is a 16-inch everyday laptop with an Intel 155H processor, Intel Arc Graphics, 16 GB of RAM and 1 TB of storage. A good fit for study, office work and browsing. It came out in 2025.

Released: 2025-05-23

Specifications

Key specs

Type: Everyday
Processor: Intel 155H
Graphics: Intel Arc Graphics
Memory: 16 GB
Storage: 1 TB
Display: 16 inch
Resolution: 1920 x 1080
Refresh rate: 60 Hz
weight: 990 g
os: Windows 11 Home
Released: 2025-05-23
Part number: 15Z90ST-G.AD78A1
EAN / UPC: 8806096043271

Design

Colour name: Neptune Blue
Product type: Laptop
Product colour: Blue, Navy
Form factor: Clamshell
Housing material: Magnesium
Market positioning: Everyday

Display

Display diagonal: 39.6 cm (15.6")
Display resolution: 1920 x 1080 pixels
HD type: Full HD
Panel type: OLED
Native aspect ratio: 16:9
Anti-reflective coating: Yes
Display brightness: 400 cd/m²
Maximum display brightness (HDR): 500 cd/m²
RGB colour space: DCI-P3
Colour gamut: 100%
Display response rise/fall: 0.2 ms
Maximum refresh rate: 60 Hz
Contrast ratio (typical): 1000000:1
High Dynamic Range (HDR) supported: Yes
High Dynamic Range (HDR) technology: High Dynamic Range (HDR) 500

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Processor

Processor manufacturer: Intel
Processor family: Intel Core Ultra 7
Processor generation: Intel® Core™ Ultra (Series 1)
Processor model: 155H
Processor cores: 16
Processor threads: 22
Processor boost frequency: 4.8 GHz
Performance cores: 6
Efficient cores: 8
Low Power Efficient-cores: 2
Performance-core Max Turbo Frequency: 4.8 GHz
Efficient-core Max Turbo Frequency: 3.8 GHz
Low Power Efficient-core Max Turbo Frequency: 2.5 GHz
Performance-core base frequency: 1.4 GHz
Efficient-core base frequency: 0.9 GHz
Low Power Efficient-core Base Frequency: 700 MHz
Processor cache: 24 MB
Processor cache type: Smart Cache
Processor base power: 28 W
Maximum turbo power: 115 W

Neural processor unit (NPU)

Neural processor unit (NPU): Intel AI Boost
Maximum frequency NPU: 1.4 GHz
Sparsity support: Yes
Windows Studio effects support: Yes
AI datatype support on NPU: FP16, FP32, Int8
AI software frameworks supported by NPU: DirectML, ONNX RT, OpenVINO, Windows ML

Memory

Internal memory: 16 GB
Internal memory type: LPDDR5x-SDRAM
Memory clock speed: 7467 MHz
Memory channels: Dual-channel

Storage

Total storage capacity: 1 TB
Storage media: SSD
Total SSDs capacity: 1 TB
Number of SSDs installed: 1
SSD capacity: 1 TB

Graphics

On-board graphics card: Yes
On-board GPU manufacturer: Intel
On-board graphics card family: Intel Arc Graphics
On-board graphics card model: Intel Arc Graphics

Audio

Number of built-in speakers: 2
Speaker power: 4 W
Built-in microphone: Yes

Camera

Front camera: Yes
Front camera HD type: Full HD
Infrared (IR) camera: Yes

Network

Top Wi-Fi standard: Wi-Fi 6E (802.11ax)
Bluetooth: Yes
Bluetooth version: 5.3

Ports & interfaces

USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity: 1
Thunderbolt 4 ports quantity: 2
Intel® Thunderbolt 4: Yes
Headphone outputs: 1
Combo headphone/mic port: Yes
USB Type-C DisplayPort Alternate Mode: Yes

Keyboard

Pointing device: Touchpad
Numeric keypad: Yes
Keyboard backlit: Yes
Full-size keyboard: Yes
Keyboard number of keys: 98
Keyboard layout: QWERTY

Software

Operating system architecture: 64-bit
Operating system installed: Windows 11 Home

Battery

Battery technology: Lithium-Ion (Li-Ion)
Battery capacity: 60 Wh
Continuous video playback time (max): 20.5 h

Power

USB Type-C charging port: Yes
USB Type-C required charging power (min): 45 W
USB Type-C required charging power (max): 100 W
USB Power Delivery (USB PD): Yes

Security

Face recognition: Yes
Windows Hello: Yes

Weight & dimensions

Width: 356 mm
Depth: 227.4 mm
Height (front): 1.09 cm
Height (rear): 1.25 cm
Weight: 990 g

Other features

Warranty period: 1 year(s)

Check the manufacturer's page before buying.

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About this product

[The Slimest LG gram ever] The gram SuperSlim is the thinnest ever and it shows off a light weight of 990g in a slim body at just 10.9mm. Its innovative lightweight body is optimized to keep you multitasking even on the move. [OLED Display] Professional OLED Display that provides 15.6 inch Large screen, Full HD(1920x1080) high resolution and DCI-P3 100%, HDR True Black 500 Low-reflection display which provides a stutter-free experience due to 0.2ms response time that can help boost productivity. [Strong Durability] This LG gram SuperSlim laptop has undergone seven rigorous US military tests which was passed and verified. These tests include: Low Pressure/High & Low Temperatures/Shock(drop tests)/Vibration/Salt Fog/Dust. [Intel Evo] More powerful and faster performance with the Intel Evo Platform Powered by Intel Core Ultra 7 Processors [All-Day Battery life] 60Wh battery that's powered to last longer on a single charge. [Intel Unison] Do more with ease. This LG gram laptop is equipped with Intel Unison️, which provides a seamless connectivity experience with your mobile regardless of Operating system such as Android, iOS, or windows.

SuperSlim 15Z90ST-G.AD78A1 vs similar laptops

	LG SuperSlim 15Z90ST-G.AD78A1	Acer Aspire Go 15 AG15-42P-R447 16″ Laptop	Lenovo IdeaPad Slim 3 16AHP10	ASUS Vivobook 16 OLED X1605VA-SH2865W 16″ Laptop
Type	Everyday	Everyday	Everyday	Everyday
Processor	Intel 155H	AMD 7430U	AMD 155	Intel 270H
Graphics	Intel Arc Graphics	AMD Radeon Graphics	AMD Radeon 740M	Intel® Graphics
Memory	16 GB	16 GB	16 GB	16 GB
Storage	1 TB	1 TB	1 TB	1 TB
Display	16 inch	16 inch	16 inch	16 inch
Resolution	1920 x 1080	1920 x 1080	1920 x 1200	1920 x 1200
Released	2025	2026	2026	2026