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An 18 inch Eclipse Gray gaming laptop with a slim profile

ASUS

ASUS ROG Strix G18 G815LW 18" WQXGA 240Hz Ultra 9-275HX RTX 5080 64GB 8TB gaming laptop

SKU CH-T4KY-YWT5B

An 18 inch WQXGA 240Hz gaming laptop with an Intel Core Ultra 9 275HX 24-core processor, RTX 5080 graphics with 16GB GDDR7, 64GB DDR5 memory and 8TB NVMe storage

  • ColorEclipse Gray
  • Operating SystemWindows 11 Pro
  • CPUIntel® Core Ultra 9-275HX
  • Screen18" WQXGA
  • Memory64GB
  • 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|64GB|8 TB|QHD+

  • 18" WQXGA 240Hz IPS-level display for fluid visuals
  • Intel Core Ultra 9 275HX 24-core CPU up to 5.5 GHz for heavy workloads
  • NVIDIA GeForce RTX 5080 with 16 GB GDDR7 for high frame rates
  • 64 GB DDR5 5600 MHz dual-channel memory for smooth multitasking
  • 8 TB PCIe 4.0 NVMe SSD for fast load times

18-inch WQXGA 240Hz gaming laptop

The ASUS ROG Strix G18 G815LW pairs an 18-inch 2560 x 1600 IPS-level panel at 240 Hz with an Intel Core Ultra 9 275HX 24-core processor and NVIDIA GeForce RTX 5080 graphics. It ships with Windows 11 Pro, 64 GB of DDR5 5600 MHz memory and 8 TB of PCIe 4.0 x4 NVMe storage in Eclipse Gray.

PCIe 4.0 x4 NVMe storage limits

The 8 TB array uses two 4 TB M.2 drives on a PCIe 4.0 x4 interface, so sequential throughput tops out at the 4.0 lane ceiling rather than newer 5.0 speeds. The DDR5 5600 MHz dual-channel kit runs at the platform's rated frequency, and the RTX 5080's 16 GB GDDR7 frame buffer caps VRAM capacity for the largest textures.

Upgrade from lower-tier mobile workstations

Replacing a machine with a previous-generation HX CPU, lesser GPU or smaller SSD yields noticeable gains in compile times, 3D render frames and level-load speed. The jump is worth it when projects exceed 32 GB RAM or 4 TB storage, or when 240 Hz motion clarity matters for competitive play.

Highlights

  • 18" WQXGA 240Hz IPS-level display for fluid visuals
  • Intel Core Ultra 9 275HX 24-core CPU up to 5.5 GHz for heavy workloads
  • NVIDIA GeForce RTX 5080 with 16 GB GDDR7 for high frame rates
  • 64 GB DDR5 5600 MHz dual-channel memory for smooth multitasking
  • 8 TB PCIe 4.0 NVMe SSD for fast load times

Specifications

BrandASUS
SeriesROG Strix G18
ModelG815LW-G18.U95080
Part NumberG815LW-G18.U95080-HID7P
ColorEclipse Gray
Operating SystemWindows 11 Pro
CPUIntel® Core Ultra 9-275HX
Screen18" WQXGA
Memory64GB
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 32 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

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Questions about this item

Should I choose the 64 GB DDR5 5600 MHz kit or a smaller capacity?

The laptop ships with 64 GB configured as 2 x 32 GB dual-channel DDR5 5600 MHz, which is the maximum supported capacity for this platform.

What does the 5.5 GHz max turbo frequency mean in daily use?

The 24-core Ultra 9-275HX can boost up to 5.5 GHz on demanding threads, giving strong single-thread speed for games and heavy workloads.

How does the PCIe 4.0 x4 NVMe interface limit the 8 TB SSD in practice?

The 2 x 4 TB drives run at PCIe 4.0 x4 speeds, so sequential reads and writes are capped at the Gen 4 ceiling rather than Gen 5.

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