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Eclipse Gray 18-inch gaming laptop with flat keyboard deck and visible rear vents

ASUS

ASUS ROG Strix G18 G815LW-G18.U95080-HID5 gaming laptop

SKU CH-BJGF-VAHV7

An 18-inch WQXGA 240Hz gaming laptop with an Intel Core Ultra 9 275HX 24-core processor, RTX 5080 16GB GDDR7 graphics, 64GB DDR5 memory and a 2TB PCIe 4.0 NVMe SSD

  • ColorEclipse Gray
  • Operating SystemWindows 11 Home
  • CPUIntel® Core Ultra 9-275HX
  • Screen18" WQXGA
  • Memory64GB
  • Storage2 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|64GB|2 TB|QHD+

  • Intel Core Ultra 9 275HX 24-core CPU reaches 5.5 GHz turbo for heavy workloads
  • NVIDIA GeForce RTX 5080 with 16 GB GDDR7 drives high-frame-rate gaming
  • 18" WQXGA 240 Hz IPS-level panel at 2560 x 1600 delivers smooth visuals
  • 64 GB DDR5 5600 MHz dual-channel memory handles multitasking and large datasets
  • 2 TB PCIe 4.0 x4 NVMe SSD provides fast boot and load times

18-inch WQXGA gaming laptop

The ASUS ROG Strix G18 G815LW-G18.U95080-HID5 is an 18-inch Windows 11 Home gaming laptop built for users who need desktop-class performance in a portable chassis. It pairs an Intel Core Ultra 9 275HX 24-core processor with an NVIDIA GeForce RTX 5080 GPU and 16 GB of GDDR7 video memory. The 240 Hz IPS-level panel delivers 2560 x 1600 resolution for fast, detailed visuals.

Thermal Grizzly and Gelid TIM upgrades

HIDevolution replaces the stock thermal interface material with Thermal Grizzly Conductonaut on the CPU and Gelid GC Extreme on the GPU. This custom application lowers component temperatures under sustained load, helping the 2.1 GHz base clock reach its 5.5 GHz max turbo more consistently. The upgrade is performed before shipment and covered by the builder’s warranty.

64 GB DDR5 5600 dual-channel memory

The system ships with 64 GB of DDR5 5600 MHz memory in a 2 x 32 GB dual-channel configuration. This capacity supports heavy multitasking, large texture streaming and memory-hungry creative workloads without paging to the 2 TB PCIe 4.0 x4 NVMe SSD. Speed is subject to system capability.

Highlights

  • Intel Core Ultra 9 275HX 24-core CPU reaches 5.5 GHz turbo for heavy workloads
  • NVIDIA GeForce RTX 5080 with 16 GB GDDR7 drives high-frame-rate gaming
  • 18" WQXGA 240 Hz IPS-level panel at 2560 x 1600 delivers smooth visuals
  • 64 GB DDR5 5600 MHz dual-channel memory handles multitasking and large datasets
  • 2 TB PCIe 4.0 x4 NVMe SSD provides fast boot and load times

Specifications

BrandASUS
SeriesROG Strix G18
ModelG815LW-G18.U95080
Part NumberG815LW-G18.U95080-HID5
ColorEclipse Gray
Operating SystemWindows 11 Home
CPUIntel® Core Ultra 9-275HX
Screen18" WQXGA
Memory64GB
Storage2 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
SSD2TB
HDDNo
Storage Spec2 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

5 more in the same range

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

Questions about this item

How often will the Thermal Grizzly Conductonaut and Gelid GC Extreme thermal compounds on the CPU and GPU need replacement?

The Thermal Grizzly Conductonaut on the CPU and Gelid GC Extreme on the GPU are applied during assembly and typically last several years; replacement is only needed if temperatures rise noticeably after prolonged heavy use.

Which component hits its thermal limit first during extended 240 Hz gaming sessions?

The Intel Core Ultra 9 275HX with its 24 cores and 5.5 GHz turbo frequency generally reaches its thermal ceiling before the RTX 5080, especially when all 8 P-cores and 16 E-cores are fully loaded.

What are the fan noise and surface temperatures like when the RTX 5080 and Ultra 9 275HX run at full load all day?

Expect audible fan noise at high RPM and warm keyboard deck temperatures; the upgraded thermal compounds help move heat to the heatsinks faster, but sustained 16 GB GDDR7 and 36 MB cache workloads still produce significant exhaust heat.

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