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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 16TB Windows 11 Pro

SKU CH-NZYS-K3FAQ

18-inch WQXGA 240 Hz gaming laptop with 24-core Core Ultra 9-275HX, RTX 5080, 32 GB DDR5 and 16 TB NVMe storage

  • ColorEclipse Gray
  • Operating SystemWindows 11 Pro
  • CPUIntel® Core Ultra 9-275HX
  • Screen18" WQXGA
  • Memory32GB
  • Storage16 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|16 TB|QHD+

  • 24-core Ultra 9-275HX reaches 5.5 GHz turbo for heavy compute
  • RTX 5080 with 16 GB GDDR7 drives high-frame-rate 18" 2560 x 1600 240 Hz panel
  • 32 GB DDR5 5600 MHz dual-channel memory handles multitasking and large assets
  • 16 TB PCIe 4.0 x4 NVMe storage (2 x 8 TB) loads games and projects fast
  • Gelid GC Extreme on GPU plus Conductonaut on CPU lowers peak temperatures under load

18-inch WQXGA 240Hz gaming laptop

The ASUS ROG Strix G18 G815LW pairs an 18-inch 2560 x 1600 IPS-level panel at 240Hz with an Intel Core Ultra 9 275HX 24-core processor and NVIDIA GeForce RTX 5080 graphics with 16 GB GDDR7. It ships with Windows 11 Pro, 32 GB DDR5 5600 MHz memory and 16 TB of PCIe 4.0 x4 NVMe storage across two 8 TB drives. The chassis measures 15.71 x 11.73 x 0.93 to 1.26 inches and weighs 7.54 lbs in Eclipse Gray.

Thermal compound upgrade from stock paste

HIDevolution replaces the factory CPU compound with Thermal Grizzly Conductonaut and applies Gelid GC Extreme on the GPU. The liquid metal and high-conductivity paste lower peak temperatures under sustained load compared with standard thermal interface material. The improvement is most noticeable during long rendering or gaming sessions where the 5.5 GHz max turbo frequency can be held longer. Buyers who prioritise acoustic headroom or consistent boost clocks gain the most from this service.

Dual 8 TB NVMe array with DDR5 memory

The 16 TB storage pool uses two M.2 PCIe 4.0 x4 NVMe SSDs, freeing any remaining M.2 slots for future expansion while delivering fast boot and level-load speeds. The 32 GB DDR5 5600 MHz kit runs in dual channel, leaving two SO-DIMM slots open if more memory is later required. The 24-core Arrow Lake processor and RTX 5080 combination targets 2.5K high-refresh gaming, video editing and 3D workloads without needing external GPU enclosures.

Highlights

  • 24-core Ultra 9-275HX reaches 5.5 GHz turbo for heavy compute
  • RTX 5080 with 16 GB GDDR7 drives high-frame-rate 18" 2560 x 1600 240 Hz panel
  • 32 GB DDR5 5600 MHz dual-channel memory handles multitasking and large assets
  • 16 TB PCIe 4.0 x4 NVMe storage (2 x 8 TB) loads games and projects fast
  • Gelid GC Extreme on GPU plus Conductonaut on CPU lowers peak temperatures under load

Specifications

BrandASUS
SeriesROG Strix G18
ModelG815LW-G18.U95080
Part NumberG815LW-G18.U95080-HID4P
ColorEclipse Gray
Operating SystemWindows 11 Pro
CPUIntel® Core Ultra 9-275HX
Screen18" WQXGA
Memory32GB
Storage16 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
SSD16TB
HDDNo
Storage Spec16 TB (2 x 8 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

What are the width, depth and height range of the G815LW chassis?

The chassis measures 15.71 inches wide, 11.73 inches deep and 0.93 to 1.26 inches high.

How is the 32 GB DDR5 5600 MHz memory installed and what mistake should I avoid?

It ships as two 16 GB modules in dual-channel slots; do not add a third stick or mix speeds, or dual-channel performance will be lost.

When will the 16 TB PCIe 4.0 x4 NVMe storage need replacement?

The two 8 TB drives have no moving parts and are rated for years of typical use; replace only if SMART health drops below threshold or capacity runs out.

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