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LG Gram (2025) 15Z80T 15.6" specifications and in-depth review

LG Gram (2025) 15Z80T 15.6"

Manufacturer: LG

The LG Gram (2025) 15Z80T is a 15.6″ productivity laptop built around a slim 15mm chassis that weighs 2,250g, striking a balance between portability and screen real estate. It ships with a backlit keyboard, stereo speakers with Dolby Atmos support, and a front camera paired with 3D facial recognition for convenient sign-in. Connectivity is well-rounded, with two Thunderbolt 4 ports, two USB 3.2 Gen 2 Type-A ports, HDMI 2.1, and a dedicated RJ45 port for wired networking, alongside Wi-Fi 6E and Bluetooth 5.4 for wireless use.

Under the hood, the 15Z80T runs a processor built on a 4nm process node, offering 16 threads across a big.LITTLE core layout with a 5GHz turbo clock speed and a 28W TDP. The system carries 16GB of DDR5 RAM — expandable up to 256GB — running at up to 8,000MHz across dual channels, backed by a 1TB NVMe PCIe 4.0 SSD. Graphics are handled by the AMD Radeon 860M, which clocks up to 3,000MHz on the GPU turbo and supports OpenGL 4.6, OpenCL 2.1, and DirectX 12. The 15.6″ IPS LCD display resolves at 1920×1080 at 141 ppi, with a 350-nit brightness rating, 60Hz refresh rate, and an anti-reflection coating.

Pros
  • Two Thunderbolt 4 ports enable high-speed data transfer and support for up to four external displays simultaneously via a single connection
  • Wi-Fi 6E support ensures fast and low-latency wireless connectivity on less congested frequency bands
  • The 15mm slim profile combined with a 2,250g weight keeps the chassis reasonably portable for a 15.6-inch productivity machine
  • 3D facial recognition provides a convenient and hands-free login method without requiring a fingerprint scanner
  • DDR5 RAM running at up to 8,000MHz across dual channels, with a maximum supported capacity of 256GB, offers substantial headroom for memory-intensive workloads
  • Sleep-and-charge USB ports allow connected devices to be charged even when the laptop is off or in sleep mode
Cons
  • The 60Hz refresh rate and 1080p resolution at 141 ppi may feel limiting for users working on detailed visual content on a 15.6-inch display
  • A typical brightness of 350 nits offers only moderate luminance, which may be insufficient in brightly lit environments
  • No external memory card slot limits quick file transfer from cameras or other card-based devices
  • The display lacks touch input, which reduces flexibility for users who prefer direct on-screen interaction
  • No fingerprint scanner means biometric authentication relies solely on the 3D facial recognition camera
Who is this for?

This laptop is well-suited to professionals and students who need a capable everyday machine for productivity and multitasking workflows, thanks to its 16-core thread CPU with a 5GHz turbo clock, DDR5 RAM expandable up to 256GB, and a fast PCIe 4.0 NVMe SSD. The two Thunderbolt 4 ports and support for up to four simultaneous displays make it a practical choice for users who regularly connect to multi-monitor setups or external docking stations. Wi-Fi 6E, Bluetooth 5.4, a dedicated RJ45 port, and 3D facial recognition round out a feature set that suits office-based or hybrid workers who value both convenience and reliable wired and wireless connectivity.

Who is this NOT for?

Users looking for a machine to handle demanding gaming or GPU-intensive creative work will find the integrated Radeon 860M limiting, given its modest shading unit count and the absence of ray tracing and DLSS support. The 60Hz refresh rate and 1920x1080 resolution at 141 ppi on a 15.6-inch panel are unlikely to satisfy those who require a high-fidelity or high-refresh display for video editing, color-accurate design work, or competitive gaming. Similarly, users who work frequently in bright outdoor environments may find the 350-nit brightness insufficient, and the lack of a rugged or weather-sealed build makes it a poor fit for fieldwork or physically demanding environments.

Design:

Type Productivity
weight 2250 g
Uses a fanless design ✕
Has a backlit keyboard ✓
volume 1190.82 cm³
width 356 mm
height 223 mm
thickness 15 mm
is weather-sealed (splashproof) ✕
has a rugged build ✕

The LG Gram (2025) 15Z80T is a productivity-class laptop with a slim 15mm profile and dimensions of 356mm wide by 223mm tall, giving it a total volume of 1,190.82cm³. It weighs 2,250g, keeping it reasonably portable for a 15.6″ machine. The design includes a backlit keyboard for comfortable use in low-light conditions, while the build does not incorporate a fanless configuration, a rugged construction, or any weather-sealing.

Display:

screen size 15.6"
resolution 1920 x 1080 px
pixel density 141 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 (2025) 15Z80T features a 15.6″ IPS LCD panel with LED backlighting, delivering a 1920x1080 resolution at a pixel density of 141 ppi. Brightness is rated at a typical 350 nits, and the display runs at a 60Hz refresh rate. An anti-reflection coating helps reduce glare during everyday use, though the screen does not support touch input. The system is capable of driving up to four displays simultaneously.

Performance:

RAM 16GB
Uses flash storage ✓
internal storage 1024GB
CPU speed 4 x 2 & 4 x 2 GHz
CPU threads 16 threads
Is an NVMe SSD ✓
DirectX version DirectX 12
GPU clock speed 400 MHz
uses multithreading ✓
maximum memory amount 256GB
DDR memory version 5
turbo clock speed 5GHz
GPU turbo 3000 MHz
PCI Express (PCIe) version 4
semiconductor size 4 nm
has XeSS (XMX) ✕
Supports 64-bit ✓

The LG Gram (2025) 15Z80T is powered by a processor built on a 4nm process node, running at a base clock of 2GHz across two sets of four cores, with a turbo frequency reaching up to 5GHz, and 16 threads supported through multithreading. The system comes with 16GB of DDR5 RAM, expandable up to 256GB, and pairs it with a 1TB NVMe SSD using a PCIe 4.0 interface for fast flash-based storage. The GPU operates at a base clock of 400MHz with a turbo of 3,000MHz, supports DirectX 12 and 64-bit computing, but does not include XeSS (XMX) support.

Benchmarks:

Geekbench 6 result (multi) 11247
Geekbench 6 result (single) 2467
PassMark result 34459
PassMark result (single) 3878

In benchmark testing, the LG Gram (2025) 15Z80T records a Geekbench 6 multi-core score of 11,247 and a single-core score of 2,467, reflecting the processor's threading capability alongside its per-core output. On the PassMark suite, the system achieves an overall score of 34,459, with a single-thread PassMark result of 3,878.

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 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 ✓
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 5.4
RJ45 ports 1
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 LG Gram (2025) 15Z80T offers a well-stocked port selection, highlighted by two Thunderbolt 4 ports that also function as USB 4 40Gbps connections, alongside two USB 3.2 Gen 2 Type-A ports for standard peripherals. Video output is handled by a single HDMI 2.1 port, while DisplayPort, mini DisplayPort, and VGA outputs are absent. Wired networking is covered by one RJ45 port, and the laptop includes AirPlay support. For wireless connectivity, it supports Wi-Fi 6E (802.11ax) along with Wi-Fi 6, Wi-Fi 5, and Wi-Fi 4, paired with Bluetooth 5.4. There is no external memory card slot, and no USB 2.0 or USB 3.2 Gen 1 ports are present.

Battery:

Has sleep-and-charge USB ports ✓
Has a MagSafe power adapter ✕

The LG Gram (2025) 15Z80T includes sleep-and-charge USB ports, allowing connected devices to be charged even when the laptop is powered off or in sleep mode. It does not use a MagSafe power adapter.

Features:

has stereo speakers ✓
has a socket for a 3.5 mm audio jack ✓
supports ray tracing ✕
supports DLSS ✕
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 (2025) 15Z80T comes equipped with stereo speakers and Dolby Atmos support, a 3.5mm headset jack, and two built-in microphones. A front camera is included alongside 3D facial recognition for biometric login, while a fingerprint scanner is not present. The laptop does not support voice commands, and no stylus is included. On the graphics side, ray tracing and DLSS are not supported. Motion and location sensing features — including a gyroscope, accelerometer, compass, and GPS — are absent, and there is no S/PDIF output or optical disc drive.

Miscellaneous:

clock multiplier 20
PassMark result (overclocked) 24477
render output units (ROPs) 8
texture mapping units (TMUs) 32
shading units 512
OpenGL version 4.6
GPU execution units 8
OpenCL version 2.1
Type Laptop, Desktop
instruction sets MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2
Has an unlocked multiplier ✕
Has NX bit ✓
L3 cache 16 MB
L2 cache 8 MB
GPU name Radeon 860M
Has integrated graphics ✓
Supports ECC memory ✕
memory channels 2
RAM speed (max) 8000 MHz
CPU temperature 100 °C
Thermal Design Power (TDP) 28W
Uses big.LITTLE technology ✓

The processor in the LG Gram (2025) 15Z80T uses big.LITTLE technology with a clock multiplier of 20 and a 28W TDP, with a maximum CPU temperature of 100°C. It supports a broad set of instruction sets including MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2, and features an NX bit for hardware-level security, though the multiplier is locked. Cache configuration includes 16MB of L3 cache and 8MB of L2 cache, and the processor is rated for both laptop and desktop form factors. Memory runs across two channels at up to 8,000MHz, with ECC support absent. Graphics are handled by the integrated AMD Radeon 860M, which includes 512 shading units, 32 texture mapping units, 8 render output units, and 8 GPU execution units, with support for OpenGL 4.6 and OpenCL 2.1. The overclocked PassMark result is recorded at 24,477.

Final Verdict

The LG Gram (2025) 15Z80T is a well-rounded productivity laptop that delivers solid everyday performance through its 4nm processor, DDR5 memory architecture, and fast PCIe 4.0 NVMe storage, all wrapped in a slim 15mm chassis that keeps portability in mind. Its dual Thunderbolt 4 ports with support for up to four external displays make it a genuinely practical choice for professionals working across multi-screen setups or docking environments. That said, users with more demanding visual or gaming workloads will find its integrated graphics and 60Hz Full HD display less accommodating. For its intended audience — office-based and hybrid workers who prioritize connectivity, responsiveness, and a lightweight form factor — the 15Z80T presents a coherent and capable package.