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Black 18 inch gaming laptop with RGB backlit keyboard

MSI

MSI Crosshair 18 HX AI Ultra 9 275HX RTX 5070 16GB 512GB gaming laptop

SKU CH-F0X8-0HA6D

An 18-inch QHD+ 240Hz gaming laptop with a 24-core Intel Ultra 9 275HX processor, RTX 5070 8GB GDDR7 graphics, 16GB DDR5 memory and a 512GB PCIe SSD

  • ColorBlack
  • CPU TypeIntel Core Ultra 9 (Series 1)
  • Processor Name2.70GHz
  • Number of Cores24-core (8P+16E) Processor
  • Turbo Frequency5.4 GHz
  • Screen Size18.0"
  • 24-core Ultra 9 275HX reaches 5.4 GHz turbo for responsive multitasking
  • 18-inch QHD+ 240Hz display delivers smooth 2560 x 1600 visuals
  • RTX 5070 with 8GB GDDR7 powers modern games at high settings
  • Thunderbolt 5 and HDMI 2.1 connect multiple high-speed peripherals
  • 16GB DDR5 plus 512GB PCIe SSD loads levels fast

18-inch QHD+ 240Hz gaming laptop

The MSI Crosshair 18 HX AI is an 18-inch gaming laptop built around an Intel Core Ultra 9 275HX processor with 24 cores and a maximum turbo frequency of 5.4 GHz. It pairs that CPU with an NVIDIA GeForce RTX 5070 Laptop GPU equipped with 8 GB of GDDR7 memory. The 18.0-inch QHD+ panel runs at 2560 x 1600 resolution and a 240 Hz refresh rate. Windows 11 Home comes pre-installed.

Best for users who need 18-inch high-refresh display

This machine suits buyers who want a large 18-inch screen with 240 Hz motion clarity and a 24-core processor for heavy multitasking or content workloads. The 16 GB of DDR5 memory and 512 GB PCIe SSD cover mainstream gaming and productivity, but professionals who need larger memory capacity or multiple terabytes of fast storage should look at configurable workstation-class alternatives.

8 GB GDDR7 GPU memory decides fit

The single specification that determines whether this is the right part is the GeForce RTX 5070 with 8 GB of GDDR7 video memory. That frame-buffer size sets the ceiling for texture-heavy games at QHD+ resolution and for GPU-accelerated creative tasks. If your workflow demands more than 8 GB of VRAM, this laptop will not meet the requirement.

Highlights

  • 24-core Ultra 9 275HX reaches 5.4 GHz turbo for responsive multitasking
  • 18-inch QHD+ 240Hz display delivers smooth 2560 x 1600 visuals
  • RTX 5070 with 8GB GDDR7 powers modern games at high settings
  • Thunderbolt 5 and HDMI 2.1 connect multiple high-speed peripherals
  • 16GB DDR5 plus 512GB PCIe SSD loads levels fast

Specifications

SeriesRaider
ModelCrosshair 18
ColorBlack
CPU TypeIntel Core Ultra 9 (Series 1)
Processor Name2.70GHz
Number of Cores24-core (8P+16E) Processor
Turbo Frequency5.4 GHz
Screen Size18.0"
TouchscreenNon-Touch Screen
Display TypeQHD+
Resolution2560 x 1600
Operating SystemWindows 11 Home
GPU/VPUGeForce RTX 5070 Laptop GPU
Video Memory8GB
SSD512GB PCIe SSD
HDDNo
Memory16GB
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

How do I install the 512GB PCIe SSD and what step do people get wrong?

The 512GB PCIe SSD is already installed; if adding a second drive, remove the bottom panel screws, insert the drive into the open M.2 slot at an angle, then secure it with the tiny retention screw — the step most people miss is fitting that screw before replacing the panel.

What maintenance or replacement will the 16GB DDR5 memory need later?

The 16GB DDR5 memory is soldered and cannot be upgraded; no routine maintenance is required, but if a fault occurs the entire motherboard must be replaced rather than swapping a module.

Which limit appears first on the RTX 5070 8GB GDDR7 during sustained gaming?

The 8GB GDDR7 frame buffer fills before the GPU core hits its thermal ceiling, so texture-heavy titles at 2560 x 1600 will hit VRAM capacity first.

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