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Eclipse Gray 18 inch gaming laptop closed lid matte finish

ASUS

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

SKU CH-73Z3-63KYF

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

  • ColorEclipse Gray
  • Operating SystemWindows 11 Home
  • 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 Home

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

  • 18" WQXGA 240Hz IPS-level display for smooth high-resolution visuals
  • Intel Core Ultra 9 275HX 24-core CPU up to 5.5 GHz turbo for heavy multitasking
  • NVIDIA RTX 5080 with 16 GB GDDR7 for high-end graphics performance
  • 32 GB DDR5 5600 MHz dual-channel memory for fast application response
  • 8 TB PCIe 4.0 NVMe SSD storage for rapid boot and load times

18-inch WQXGA 240Hz Gaming Laptop

The ASUS ROG Strix G18 G815LW pairs an 18-inch 2560 x 1600 IPS-level display running at 240Hz with an Intel Core Ultra 9 275HX 24-core processor and NVIDIA GeForce RTX 5080 graphics. It is built for enthusiasts who need desktop-class throughput in a portable chassis.

Sustained thermal performance with upgraded TIM

HIDevolution applies Thermal Grizzly Conductonaut on the CPU and Gelid GC Extreme on the GPU to lower peak temperatures during extended sessions. The liquid-metal and high-conductivity paste combination helps the 24-core Arrow Lake chip and RTX 5080 maintain higher clocks without thermal throttling.

16 GB GDDR7 video memory decides 4K headroom

The RTX 5080 ships with 16 GB of GDDR7 VRAM, which sets the practical ceiling for texture-heavy 4K gaming and GPU compute workloads. If your pipeline demands more frame-buffer capacity, this specification is the limiting factor.

Highlights

  • 18" WQXGA 240Hz IPS-level display for smooth high-resolution visuals
  • Intel Core Ultra 9 275HX 24-core CPU up to 5.5 GHz turbo for heavy multitasking
  • NVIDIA RTX 5080 with 16 GB GDDR7 for high-end graphics performance
  • 32 GB DDR5 5600 MHz dual-channel memory for fast application response
  • 8 TB PCIe 4.0 NVMe SSD storage for rapid boot and load times

Specifications

BrandASUS
SeriesROG Strix G18
ModelG815LW-G18.U95080
Part NumberG815LW-G18.U95080-HID3
ColorEclipse Gray
Operating SystemWindows 11 Home
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 loud and hot does the 24-core Ultra 9-275HX and RTX 5080 get during all-day loads?

The system ships with Thermal Grizzly Conductonaut on the CPU and Gelid GC Extreme on the GPU, high-conductivity thermal interface materials chosen to lower peak temperatures and keep fan speeds down during sustained workloads.

What must I already own to start using the 18-inch 2560 x 1600 240 Hz display and 32 GB DDR5 5600 MHz memory?

The laptop includes the panel, memory, 8 TB NVMe storage, Windows 11 Home and a power adapter, so no extra components are required for basic operation.

Will my existing USB-A mouse, HDMI monitor and older PCIe 3.0 NVMe drive work with this machine?

The chassis provides USB-A ports, an HDMI output and additional M.2 slots that accept PCIe 4.0 x4 NVMe drives, so those peripherals and storage devices remain compatible.

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