The Asus ROG Strix G18 (2025) G815 is classified as a gaming laptop and comes with a backlit keyboard as standard. Its chassis measures 399 mm wide, 298 mm deep, and 23 mm thick, resulting in a total volume of 2,734.746 cm³. At 3,420 g, it sits on the heavier end of the laptop spectrum, which is typical for a machine of this size and class. The design does not use a fanless cooling setup, and it lacks any weather-sealing or splash resistance.
The laptop features an 18″ IPS LCD panel with LED backlighting, delivering a resolution of 2560 x 1600 px at a pixel density of 167 ppi. An anti-reflection coating is applied to the screen surface, helping to reduce glare in various lighting conditions. The display does not support touch input, but the system can drive up to four external displays simultaneously. Touchscreen functionality is not included.
The processor runs at a base speed of 8 x 2.7 GHz and 16 x 2.1 GHz with a turbo clock of 5.4 GHz, spanning 24 threads with multithreading support, and is built on a 4 nm process node. The system ships with 32GB of DDR5 RAM running at 5600 MHz across two memory slots, with a maximum supported capacity of 64GB, paired with a 2048GB NVMe SSD using flash storage over a PCIe 4.0 interface. On the graphics side, the GPU carries 16GB of GDDR7 VRAM with a base clock of 975 MHz and a turbo of 1500 MHz, delivering 23.04 TFLOPS of floating-point performance, a texture rate of 384 GTexels/s, and a pixel rate of 144 GPixel/s. The GPU supports DirectX 12 Ultimate and is 64-bit compatible, while XeSS (XMX) is not available on this configuration.
In PassMark testing, the system achieves a multi-core score of 56,426 alongside a single-core score of 4,723, providing a measurable indication of both parallel and single-threaded CPU performance.
The laptop offers a broad wired and wireless connectivity setup. On the USB side, it includes three USB 3.2 Gen 2 Type-A ports and two USB 4 40Gbps ports, while there are no USB 3.2 Gen 1, Thunderbolt 3, or Thunderbolt 4 ports present. Video output is handled by a single HDMI 2.1 port, with no DisplayPort, mini DisplayPort, or VGA connector available. A single RJ45 port provides wired networking, and wireless connectivity covers Wi-Fi 7 (802.11be) along with Wi-Fi 6E, Wi-Fi 6, Wi-Fi 5, and Wi-Fi 4, complemented by Bluetooth 5.4 and AirPlay support. There is no external memory slot on this model.
The laptop is equipped with a 90 Wh battery and includes sleep-and-charge USB ports, allowing connected devices to be charged even when the laptop is powered off or in sleep mode. A MagSafe power adapter is not supported on this model.
Audio is handled by stereo speakers with Dolby Atmos support, a 3.5 mm headset jack, and two built-in microphones, while an S/PDIF output is not included. On the graphics feature side, the laptop supports both ray tracing and DLSS, catering to rendering-intensive workloads. A front camera and an accelerometer are present, but there is no fingerprint scanner, 3D facial recognition, gyroscope, compass, or GPS. Voice commands are not supported, no stylus is included, and the laptop does not have an optical disc drive.
The CPU is a laptop-type processor mounted in a BGA 2114 socket with a clock multiplier of 27, an unlocked multiplier, Turbo Boost version 2, and a maximum operating temperature of 105 °C. It has a TDP of 80W, uses big.LITTLE technology, includes integrated graphics, and supports a range of instruction sets including MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2, along with NX bit and Double Precision Floating Point. Cache consists of 40 MB of L2 and 36 MB of L3, while memory runs across two channels with a maximum RAM speed of 6400 MHz. The GPU is built on the Blackwell architecture and does not carry LHR restrictions; it features 7,680 shading units, 256 texture mapping units, 96 ROPs, a 256-bit memory bus, a GPU memory speed of 2000 MHz, an effective memory speed of 25,400 MHz, and a maximum memory bandwidth of 811.5 GB/s. The system supports Intel Resizable BAR, ECC memory, stereoscopic 3D, multi-display output, OpenCL 3, OpenGL 4.6, and operates with a clock multiplier of 27.
