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Eclipse Gray 18 inch gaming laptop closed lid ROG Strix branding

ASUS

ASUS ROG Strix G18 G815LW 18" WQXGA 240Hz Ultra 9-275HX RTX 5080 32 GB DDR5 4 TB NVMe gaming

SKU CH-1P4Q-04RMF

An 18-inch WQXGA 240Hz gaming laptop with an Intel Core Ultra 9 275HX 24-core processor, NVIDIA GeForce RTX 5080 16GB GDDR7 graphics, 32GB DDR5 memory and a 4TB NVMe SSD

  • Screen size18.0 in (45.7 cm)
  • ProcessorIntel Core Ultra 9 (Series 2)
  • Graphics processorGeForce RTX 5080 Laptop GPU
  • Memory size32 GB
  • Storage drive4 TB M.2 PCIe 4.0 x4 NVMe SSD
  • Display resolution2560 × 1600

CPU Name Intel Core Ultra 9 275HX

Operating System Windows 11 Home

GPU GeForce RTX 5080 Laptop GPU

Memory 32GB

SSD 4 TB

  • 18" 240 Hz WQXGA display delivers ultra-smooth visuals at 2560 x 1600
  • Intel Core Ultra 9 275HX with 24 cores hits 5.5 GHz max turbo for heavy workloads
  • RTX 5080 with 16 GB GDDR7 powers high-frame-rate gaming and creative tasks
  • 32 GB DDR5 5600 MHz dual-channel memory keeps multitasking responsive
  • 4 TB PCIe 4.0 x4 NVMe storage provides fast 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 panel running at 240 Hz with an Intel Core Ultra 9 275HX processor and NVIDIA GeForce RTX 5080 graphics. Thirty-two gigabytes of DDR5 5600 memory and a four-terabyte PCIe 4.0 NVMe array provide capacity for modern titles and heavy multitasking. The system ships with Windows 11 Home in an Eclipse Gray chassis.

Thermals and acoustics under load

HIDevolution applies Thermal Grizzly Conductonaut liquid metal on the CPU and Gelid GC Extreme on the GPU to lower junction temperatures during sustained workloads. The 24-core Arrow Lake processor reaches a 5.5 GHz max turbo while the RTX 5080 carries 16 GB of GDDR7 video memory. Stress testing validates stable operation before the unit leaves the facility.

Deciding specification — GPU video memory

The sixteen gigabytes of GDDR7 on the RTX 5080 determine whether this laptop can hold the texture working sets of current AAA titles at native WQXGA resolution. If your workflow or gaming library demands more VRAM than 16 GB, a different graphics configuration is required.

How it compares

Measured against everything we stock in Gaming Laptop Computers, at today’s prices. Recalculated every night.

Price $2,731.99
Pricier than about 75% of the 5,382 comparable items (median $1,978.99).
Screen size 18.0 in (45.7 cm)
Higher than about 90% of the 5,361 comparable items (median 16 in).
Refresh frequency 240 Hz
Higher than about 70% of the 2,443 comparable items (median 165 Hz).

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Specifications

Product
Brand nameASUS
Product lineROG Strix G18
Model nameG815LW-G18.U95080
Part numberG815LW-G18.U95080-HID2
Product colorEclipse Gray
Design styleThin and Light
Product typeGaming & Entertainment
Recommended useConsumer
Processor
ProcessorIntel® Core Ultra 9-275HX
Processor modelIntel Core Ultra 9 275HX
CPU cores24-core (8P+16E) Processor
Turbo clock speed5.5 GHz
Processor codenameArrow Lake
L3 cache size36 MB
Memory
Memory size32 GB
RAM type and speedDDR5 5600 MHz
Memory configuration2 × 16 GB
Total memory slots2
Free memory slots0
Maximum supported memory96 GB
Storage
Storage drive4 TB M.2 PCIe 4.0 x4 NVMe SSD
SSD storage4 TB
Hard driveNo
Storage configuration4 TB (2 × 2 TB) M.2 PCIe 4.0 x4 NVMe SSD
Display
Screen size18.0 in (45.7 cm)
Display resolution2560 × 1600
Refresh frequency240 Hz
Touch inputNon-Touch Screen
Display18 in WQXGA
Display formatWQXGA
Screen features2.5K 240 Hz IPS-Level
Graphics
Graphics processorGeForce RTX 5080 Laptop GPU
Video RAM16 GB
GPU modelNVIDIA® GeForce® RTX™ 5080
Graphics typeDedicated Card
Audio & video
SoundSmart Amp Technology, Dolby Atmos, AI noise-canceling technology, Hi-Res certification (for headphone)
Speakers2-speaker system with Smart Amplifier Technology
Web camera1080P FHD IR Camera for Windows Hello
Connectivity
Wi-Fi standardWi-Fi 7
Wi-FiWi-Fi 7(802.11be) (Triple band) 2 × 2
Bluetooth supportBluetooth® 5.4
Ports & slots
USB ports3x USB 3.2 Gen 2 Type-A (data speed up to 10 Gbit/s)
Thunderbolt ports2x Thunderbolt™ 5 with support for DisplayPort™ / power delivery / G-SYNC (data speed up to 120 Gbit/s)
HDMI ports1x HDMI 2.1 FRL
Audio jacks3.5 mm Combo Audio Jack
Memory card readerNone
Power
Power adapterRectangle Conn, 380 W AC Adapter, Output: 20 V DC, 19A, 380 W, Input: 100-240 V AC, 50/60 Hz universal
Battery pack90WHrs, 4S1P, 4-cell Li-ion
Size & build
Overall dimensions15.71 in × 11.73 in × 0.93 in ~ 1.26 in
Product weight7.54 lb (3.42 kg)
Software
Operating systemWindows 11 Home
More details
Pointing deviceYes
KeyboardBacklit Chiclet Keyboard Per-Key RGB
Keyboard backlightBacklit

Other versions of this model

5 more in the same range

Questions about this item

How do I install the 4 TB PCIe 4.0 x4 NVMe storage and what step do people get wrong?

The laptop ships with two 2 TB M.2 modules already fitted in the two available slots, so no installation is required. The common mistake is buying a third drive when no free slot remains.

What maintenance will the Gelid GC Extreme thermal compound on the GPU and the Conductonaut on the CPU need later?

Both compounds are designed to last the usable life of the system. No re-application schedule is specified; monitor temperatures and only service if thermals rise noticeably.

What limit appears first during sustained load on the RTX 5080 with 16 GB GDDR7?

The GPU’s 16 GB GDDR7 frame buffer fills before the 32 GB DDR5 5600 system memory becomes a bottleneck in memory-heavy workloads.

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