Asus ROG Strix G18 (2025) G815LW 18" Intel Core Ultra 9 275HX 2.7GHz / Nvidia GeForce RTX 5080 Laptop / 32GB RAM / 2TB SSD specifications and in-depth review

Asus ROG Strix G18 (2025) G815LW 18" Intel Core Ultra 9 275HX 2.7GHz / Nvidia GeForce RTX 5080 Laptop / 32GB RAM / 2TB SSD

Manufacturer: Asus

The Asus ROG Strix G18 (2025) G815 is a high-performance gaming laptop designed for serious gamers. It comes equipped with a stunning 18″ LCD display and features a backlit keyboard for enhanced gaming comfort. With powerful specs and a sleek, functional design, this laptop is built to handle demanding tasks and gaming experiences.

Powered by the Intel Core Ultra 9 275HX processor, it offers a total CPU speed of 8 x 2.7 & 16 x 2.1 GHz and boasts a substantial 32GB of RAM running at 5600 MHz. Its Nvidia GeForce RTX 5080 GPU provides 16GB of VRAM, delivering excellent graphical performance. The laptop also supports Wi-Fi 7 and features a 90 Wh battery for long-lasting power during extended sessions.

Pros
  • Supports multi-display technology for improved multitasking and productivity.
  • Includes Intel Resizable BAR for better GPU performance.
  • Equipped with ECC memory support for enhanced data integrity during demanding tasks.
  • Supports stereoscopic 3D for immersive gaming and visual experiences.
  • Has a high maximum memory bandwidth of 811.5 GB/s for faster data transfer.
Cons
  • Lacks a MagSafe power adapter for more convenient charging.
  • Does not include integrated graphics, limiting graphics flexibility for some use cases.
  • Does not support features like 3D facial recognition or voice commands for more advanced security and control.
Who is this for?

This product is ideal for users who need powerful performance for demanding tasks, such as gaming or content creation, thanks to its high memory bandwidth and support for multi-display technology. It is also well-suited for those who require reliable data integrity, with its ECC memory support ensuring stable performance during long hours of intense usage.

Who is this NOT for?

This product may not be the best choice for users who prioritize advanced security features or prefer a more compact, portable design. It lacks features like 3D facial recognition or a MagSafe power adapter, which could limit convenience and security. Additionally, its size and weight may not be ideal for those seeking a lightweight or easily portable device.

Design:

Type Gaming
weight 3420 g
Uses a fanless design
Has a backlit keyboard
volume 2734.746 cm³
width 399 mm
height 298 mm
thickness 23 mm
is weather-sealed (splashproof)

The Asus ROG Strix G18 (2025) G815 is a gaming laptop with a solid design featuring a backlit keyboard for enhanced usability in low-light environments. It weighs 3420 g and has a compact form with dimensions of 399 mm in width, 298 mm in height, and a thickness of 23 mm. The laptop is not fanless and is not weather-sealed, offering a volume of 2734.746 cm³.

Display:

screen size 18"
resolution 2560 x 1600 px
pixel density 167 ppi
Display type LCD, LED-backlit, IPS
has a touch screen
has anti-reflection coating
supported displays 4

The Asus ROG Strix G18 (2025) G815 features an impressive 18″ LCD display with a resolution of 2560 x 1600 px, offering a pixel density of 167 ppi. The screen includes an anti-reflection coating to improve visibility in various lighting conditions, although it does not support touch functionality. This display is capable of supporting up to four connected displays via the GPU.

Performance:

RAM 32GB
RAM speed 5600 MHz
Uses flash storage
internal storage 2048GB
CPU speed 8 x 2.7 & 16 x 2.1 GHz
CPU threads 24 threads
VRAM 16GB
floating-point performance 23.04 TFLOPS
GDDR version GDDR7
texture rate 384 GTexels/s
pixel rate 144 GPixel/s
Is an NVMe SSD
DirectX version DirectX 12 Ultimate
GPU clock speed 975 MHz
uses multithreading
maximum memory amount 64GB
DDR memory version 5
turbo clock speed 5.4GHz
GPU turbo 1500 MHz
memory slots 2
PCI Express (PCIe) version 4
semiconductor size 4 nm
has XeSS (XMX)
Supports 64-bit

The Asus ROG Strix G18 (2025) G815 is equipped with 32GB of high-speed RAM running at 5600 MHz, delivering smooth multitasking and gaming performance. It features a large 2048GB NVMe internal storage for fast data access and ample space. Powered by an Intel Core Ultra 9 275HX CPU with a total clock speed of 8 x 2.7 & 16 x 2.1 GHz, and paired with a powerful 16GB VRAM, this laptop is capable of handling demanding applications and gaming workloads with ease.

Benchmarks:

PassMark result 56426
PassMark result (single) 4723

The Asus ROG Strix G18 (2025) G815 delivers strong performance as evidenced by its PassMark results, with an overall score of 56426 and a single-threaded score of 4723. These benchmarks highlight its capability to handle a range of demanding applications and tasks effectively.

Connectivity:

USB 3.2 Gen 2 ports (USB-C) 0
USB 3.2 Gen 2 ports (USB-A) 3
USB 4 20Gbps ports 0
USB 4 40Gbps ports 2
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 7 (802.11be), 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
has AirPlay
mini DisplayPort outputs 0
has a VGA connector

The Asus ROG Strix G18 (2025) G815 offers a range of connectivity options, including USB Type-C support and three USB 3.2 Gen 2 ports (USB-A). It also features an HDMI 2.1 output, enabling high-quality video and audio transmission, along with support for Wi-Fi 7 and Bluetooth 5.4 for fast wireless connectivity. Additionally, there is one RJ45 port for wired connections, but no support for external memory slots or VGA connectors.

Battery:

battery size 90 Wh
Has sleep-and-charge USB ports
Has a MagSafe power adapter

The Asus ROG Strix G18 (2025) G815 is equipped with a 90 Wh battery, providing decent power for extended use. It also includes sleep-and-charge USB ports, allowing you to charge devices while the laptop is in sleep mode. However, it does not support a MagSafe power adapter.

Features:

release date January 2025
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 Asus ROG Strix G18 (2025) G815 is packed with features designed to enhance the user experience, including Dolby Atmos audio and stereo speakers for immersive sound. It supports advanced graphics technologies like ray tracing and DLSS for improved gaming visuals. Additionally, it has a front camera for video calls and two microphones for clear audio capture, though it does not include a fingerprint scanner or stylus.

Miscellaneous:

clock multiplier 27
AMD SAM / Intel Resizable BAR Intel Resizable BAR
GPU architecture Blackwell
has LHR
Thermal Design Power (TDP) 80W
Supports 3D
Supports multi-display technology
OpenCL version 3
OpenGL version 4.6
Supports ECC memory
memory bus width 256-bit
effective memory speed 25400 MHz
maximum memory bandwidth 811.5 GB/s
render output units (ROPs) 96
texture mapping units (TMUs) 256
shading units 7680
Has Double Precision Floating Point (DPFP)
GPU memory speed 2000 MHz
Type Laptop
CPU socket BGA 2114
instruction sets MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2
Has an unlocked multiplier
L3 cache 36 MB
L2 cache 40 MB
Has NX bit
Turbo Boost version 2
CPU temperature 105 °C
Has integrated graphics
memory channels 2
RAM speed (max) 6400 MHz
Uses big.LITTLE technology

The Asus ROG Strix G18 (2025) G815 is equipped with a range of advanced technical features, including Intel Resizable BAR for improved GPU performance and support for multi-display technology for enhanced multitasking. It also offers ECC memory support, ensuring data integrity during intensive tasks. The laptop supports stereoscopic 3D and has a high-performance GPU architecture based on Blackwell, with a memory bandwidth of 811.5 GB/s and an effective memory speed of 25,400 MHz.

Final Verdict

The product stands out with its impressive high memory bandwidth and ECC memory support, making it an excellent choice for users who demand robust performance for tasks like gaming or content creation. While it offers reliable performance, the lack of advanced security features and portability may limit its appeal for those seeking a more versatile, compact device. Overall, it's a solid choice for those who prioritize performance and stability in their computing tasks.

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