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Eclipse Gray 18 inch gaming laptop with thin bezels and ROG branding

ASUS

ASUS ROG Strix G18 G815LW 18" WQXGA 240Hz Ultra 9-275HX RTX 5080 32GB 8TB Windows 11 Pro

SKU CH-D168-KRM7N

An 18-inch WQXGA 240Hz gaming laptop with an Intel Core Ultra 9-275HX 24-core processor, RTX 5080 graphics with 16 GB GDDR7, 32 GB DDR5 memory and 8 TB NVMe storage

  • ColorEclipse Gray
  • Operating SystemWindows 11 Pro
  • CPUIntel® Core Ultra 9-275HX
  • Screen18" WQXGA
  • Memory32GB
  • Storage8 TB M.2 PCIe 4.0 x4 NVMe SSD

CPU Name Intel Core Ultra 9 275HX

Operating System Windows 11 Pro

GPU|Memory|SSD|Option GeForce RTX 5080 Laptop GPU|32GB|8 TB|QHD+

  • 24-core Ultra 9-275HX reaches 5.5 GHz turbo for heavy workloads
  • RTX 5080 with 16 GB GDDR7 drives high-fidelity graphics
  • 18" 2560 x 1600 240Hz IPS-level panel gives smooth motion
  • 8 TB PCIe 4.0 x4 NVMe storage loads games fast
  • Gelid GC Extreme on GPU plus Conductonaut on CPU lowers temperatures

18-inch WQXGA gaming laptop

The ASUS ROG Strix G18 G815LW delivers an 18-inch 2560 x 1600 IPS-level display at 240 Hz in an Eclipse Gray chassis. It runs Windows 11 Pro on an Intel Core Ultra 9 275HX processor with 24 cores and 36 MB cache. The system ships with 32 GB of DDR5 5600 MHz memory and 8 TB of PCIe 4.0 x4 NVMe storage across two 4 TB drives. An NVIDIA GeForce RTX 5080 GPU with 16 GB GDDR7 handles graphics workloads.

NVIDIA GeForce RTX 5080 16 GB GDDR7

The RTX 5080 with 16 GB GDDR7 is the specification that determines whether this laptop meets your performance target. It pairs with the 24-core Ultra 9 275HX reaching 5.5 GHz max turbo to drive the 240 Hz panel at native 2560 x 1600 resolution. Thermal Grizzly Conductonaut on the CPU and Gelid GC Extreme on the GPU are applied to sustain clocks under load. The 8 TB NVMe array provides capacity for large game libraries and content-creation projects.

Build integration and upgrade path

The laptop measures 15.71 x 11.73 x 0.93 to 1.26 inches and weighs 7.54 lbs, so it requires a backpack or sleeve sized for 18-inch devices. Two occupied M.2 slots mean storage expansion needs external drives or drive replacement. Memory slots are filled with the 32 GB DDR5 kit, leaving no room for RAM upgrades without module removal. The 240 Hz WQXGA panel and RTX 5080 combination suits competitive gaming and GPU-accelerated creative workflows on a single portable platform.

Highlights

  • 24-core Ultra 9-275HX reaches 5.5 GHz turbo for heavy workloads
  • RTX 5080 with 16 GB GDDR7 drives high-fidelity graphics
  • 18" 2560 x 1600 240Hz IPS-level panel gives smooth motion
  • 8 TB PCIe 4.0 x4 NVMe storage loads games fast
  • Gelid GC Extreme on GPU plus Conductonaut on CPU lowers temperatures

Specifications

BrandASUS
SeriesROG Strix G18
ModelG815LW-G18.U95080
Part NumberG815LW-G18.U95080-HID3P
ColorEclipse Gray
Operating SystemWindows 11 Pro
CPUIntel® Core Ultra 9-275HX
Screen18" WQXGA
Memory32GB
Storage8 TB M.2 PCIe 4.0 x4 NVMe SSD
Graphics CardNVIDIA® GeForce® RTX™ 5080
Video Memory16GB
Dimensions (W x D x H)15.71" x 11.73" x 0.93" ~ 1.26"
Weight7.54 lbs
CPU TypeIntel Core Ultra 9 (Series 2)
Processor NameIntel Core Ultra 9 275HX
Number of Cores24-core (8P+16E) Processor
Core NameArrow Lake
Turbo FrequencyMax Turbo Frequency 5.5 GHz
CPU L3 Cache36 MB
Screen Size18.0"
TouchscreenNon-Touch Screen
Display TypeWQXGA
Resolution2560 x 1600
Refresh Rate240Hz
Display Features2.5K 240Hz IPS-Level
GPU/VPUGeForce RTX 5080 Laptop GPU
Graphic TypeDedicated Card
SSD8TB
HDDNo
Storage Spec8 TB (2 x 4 TB) M.2 PCIe 4.0 x4 NVMe SSD
Memory SpeedDDR5 5600MHz
Memory Spec2 x 16 GB
Memory Slot (Total)2
Memory Slot (Available)0
Max Memory Supported96GB
WLANWi-Fi 7(802.11be) (Triple band) 2*2
WiFi GenerationWi-Fi 7
BluetoothBluetooth® 5.4
USB3x USB 3.2 Gen 2 Type-A (data speed up to 10Gbps)
Thunderbolt2x Thunderbolt™ 5 with support for DisplayPort™ / power delivery / G-SYNC (data speed up to 120Gbps)
HDMI1x HDMI 2.1 FRL
Audio Ports3.5mm Combo Audio Jack
AudioSmart Amp Technology, Dolby Atmos, AI noise-canceling technology, Hi-Res certification (for headphone)
Speaker2-speaker system with Smart Amplifier Technology
TouchpadYes
KeyboardBacklit Chiclet Keyboard Per-Key RGB
Backlit KeyboardBacklit
Webcam1080P FHD IR Camera for Windows Hello
Card ReaderNone
StyleThin and Light
TypeGaming & Entertainment
UsageConsumer
AC Adapter/ChargerRectangle Conn, 380W AC Adapter, Output: 20V DC, 19A, 380W, Input: 100-240V AC, 50/60Hz universal
Battery90WHrs, 4S1P, 4-cell Li-ion

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How does the 5.5 GHz turbo frequency behave once the laptop is under sustained load?

The Intel Core Ultra 9 275HX can reach 5.5 GHz max turbo frequency on its 24 cores, with thermal headroom improved by the Conductonaut and Gelid GC Extreme thermal interface materials applied to both CPU and GPU.

What does the PCIe 4.0 x4 NVMe interface mean for the 8 TB of storage in daily use?

The dual 4 TB M.2 SSDs run on a PCIe 4.0 x4 NVMe link, delivering sequential read and write speeds that saturate the Gen 4 bus for fast boot and large-file transfer.

What are the exact dimensions and weight I need to plan for when choosing a bag or desk space?

The chassis measures 15.71 by 11.73 inches with a height ranging from 0.93 to 1.26 inches and weighs 7.54 lbs, so allow at least an 18-inch wide compartment and a sturdy strap.

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