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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

  • Screen size18.0 in (45.7 cm)
  • ProcessorAMD Ryzen 9
  • Graphics processorGeForce RTX 5070 Laptop GPU
  • Memory size64 GB
  • SSD storage4 TB PCIe SSD
  • Display resolution2560 × 1600
  • 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.

How it compares

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

Price $3,128.99
Pricier than about 81% 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).
Video RAM 8 GB
Typical for this category: the median of 4,061 items is 8 GB.

New to this? Buying a laptop with crypto, start to finish — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Product lineRaider
Model nameROG Strix G18
Product colorBlack
Design styleStandard
Product typeGaming
Recommended useConsumer
Processor
ProcessorAMD Ryzen 9
Processor model2.5 GHz
CPU cores16-core Processor
Turbo clock speed5.4 GHz
Memory
Memory size64 GB
Storage
SSD storage4 TB PCIe SSD
Hard driveNo
Optical driveNo
Display
Screen size18.0 in (45.7 cm)
Display resolution2560 × 1600
Touch inputNon-Touch Screen
Display formatQHD
Graphics
Graphics processorGeForce RTX 5070 Laptop GPU
Video RAM8 GB
Audio & video
SoundIntegrated Sound card
SpeakersInternal Speakers
Web cameraYes
Connectivity
Wi-FiYes
Bluetooth supportYes
Ports & slots
USB ports2
HDMI ports1 x HDMI
Audio jacks1 x Headphone/Microphone Combo Jack
Size & build
Product weight6–6.9 lb (2.72–3.13 kg)
In the box
Included itemsLaptop, Charger
Software
Operating systemWindows 11 Pro
More details
Pointing deviceYes
KeyboardYes
Keyboard backlightBacklit

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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