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Black 18-inch gaming laptop with RGB keyboard

ASUS

ASUS ROG Strix G18 18" 2.5k 240Hz Ryzen 9 9955HX RTX 5070 64GB 4TB gaming laptop

SKU CH-S381-J2SQP

An 18-inch 2.5k 240Hz gaming laptop powered by a 16-core Ryzen 9 9955HX and RTX 5070 graphics with 64GB DDR5 and a 4TB PCIe SSD

  • ColorBlack
  • CPU TypeAMD Ryzen 9
  • Processor Name2.50 GHz
  • Number of Cores16-core Processor
  • Turbo Frequency5.4 GHz
  • Screen Size18.0"
  • 16-core Ryzen 9 9955HX hits 5.4 GHz turbo for instant responsiveness
  • 18-inch 2.5k IPS panel at 240 Hz gives crystal-clear visuals
  • RTX 5070 8 GB graphics delivers a new level of performance
  • 64 GB DDR5 with 4 TB PCIe SSD provides massive capacity
  • Wi-Fi6E plus HDMI 2.1 and USB 4 ports ensure best-in-class connectivity

18-inch 2.5k 240Hz gaming laptop

The ASUS ROG Strix G18 is an 18-inch gaming laptop built around a 2560 x 1600 IPS panel running at 240 Hz. An AMD Ryzen 9 9955HX processor with 16 cores and 32 threads reaches a 5.4 GHz turbo frequency. An NVIDIA GeForce RTX 5070 GPU with 8 GB video memory drives the display. The system includes 64 GB DDR5 memory and a 4 TB PCIe SSD. Windows 11 Pro is pre-installed.

Suits high-refresh competitive play

The 240 Hz QHD screen and 16-core CPU suit competitive gamers who also run streaming or encoding workloads. Creators needing 64 GB memory and 4 TB fast storage for large project files will benefit. Users who prioritise thin-and-light portability or all-day battery life should consider smaller ultraportable designs instead.

RTX 5070 8 GB GPU decides fit

The GeForce RTX 5070 with 8 GB VRAM is the single specification that determines whether this laptop meets a buyer's performance target. It defines the frame-rate ceiling in modern titles at 2560 x 1600 resolution. Buyers whose workloads demand more video memory or a higher GPU tier must select a different configuration.

Highlights

  • 16-core Ryzen 9 9955HX hits 5.4 GHz turbo for instant responsiveness
  • 18-inch 2.5k IPS panel at 240 Hz gives crystal-clear visuals
  • RTX 5070 8 GB graphics delivers a new level of performance
  • 64 GB DDR5 with 4 TB PCIe SSD provides massive capacity
  • Wi-Fi6E plus HDMI 2.1 and USB 4 ports ensure best-in-class connectivity

Specifications

SeriesRaider
ModelROG Strix G18
ColorBlack
CPU TypeAMD Ryzen 9
Processor Name2.50 GHz
Number of Cores16-core Processor
Turbo Frequency5.4 GHz
Screen Size18.0"
TouchscreenNon-Touch Screen
Display TypeQHD
Resolution2560 x 1600
Operating SystemWindows 11 Pro
GPU/VPUGeForce RTX 5070 Laptop GPU
Video Memory8GB
SSD4TB PCIe SSD
HDDNo
Memory64GB
Optical Drive TypeNo
WLANYes
BluetoothYes
USB2
HDMI1 x HDMI
Audio Ports1 x Headphone/Microphone Combo Jack
AudioIntegrated Sound card
SpeakerInternal Speakers
TouchpadYes
KeyboardYes
Backlit KeyboardBacklit
WebcamYes
StyleStandard
TypeGaming
UsageConsumer
Package ContentLaptop, Charger
Weight6 - 6.9 lbs.

Questions about this item

Does the ROG Strix G18 need an external power brick to run the Ryzen 9 9955HX and RTX 5070 at full speed?

Yes, the laptop ships with a high-wattage AC adapter that plugs into the proprietary power jack; without it the CPU and GPU will throttle to lower clocks.

Can I keep using my older USB-A 3.2 Gen 1 flash drives and HDMI 1.4 monitors with the Strix G18?

Both ports are backward compatible — the two USB-A 3.2 connectors and the HDMI 2.1 FRL port will negotiate down to the speed and feature set of the legacy device.

How can I verify the 240 Hz panel is actually running at 240 Hz after I install Windows 11 Pro updates?

Open Settings > System > Display > Advanced display and confirm the refresh-rate dropdown shows 240 Hz; you can also run the built-in ROG Display Test pattern to check for frame skipping.

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