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Core Black 18 inch gaming laptop with Mini LED display

MSI

MSI Raider 18 HX AI A2XWJG gaming laptop 18" UHD+ 120Hz Mini LED Ultra 9-285HX RTX 5090 128GB

SKU CH-DM84-V1ZJH

An 18-inch UHD+ 120Hz Mini LED gaming laptop driven by a 24-core Intel Core Ultra 9-285HX up to 5.5 GHz and an RTX 5090 with 24 GB GDDR7.

  • Screen size18.0 in (45.7 cm)
  • ProcessorIntel Core Ultra 9 (Series 2)
  • Graphics processorNVIDIA GeForce RTX 5090 Laptop GPU
  • Memory size128 GB
  • Storage drive1 TB M.2 PCIe NVMe Gen4 SSD
  • Display resolution3840 × 2400
  • 18-inch UHD+ 120 Hz Mini LED display delivers 3840 x 2400 detail
  • Intel Core Ultra 9 285HX 24-core CPU reaches 5.5 GHz turbo for heavy workloads
  • NVIDIA RTX 5090 laptop GPU with 24 GB GDDR7 powers advanced graphics and AI
  • 128 GB DDR5 5600 MHz dual-channel memory handles large datasets and multitasking
  • 1 TB PCIe 4.0 NVMe SSD provides fast boot and load times

Core Black 18-inch UHD+ Mini LED

This 18-inch laptop pairs a 3840 by 2400 Mini LED panel at 120Hz with an Intel Core Ultra 9 285HX processor and an NVIDIA RTX 5090 laptop GPU carrying 24GB of GDDR7 video memory. The 24-core CPU reaches a 5.5 GHz maximum turbo frequency and includes 36MB of L3 cache. Windows 11 Pro comes pre-installed on the 1TB PCIe 4.0 NVMe SSD.

Gelid GC Extreme thermal compound upgrade

HIDevolution applies Gelid GC Extreme thermal interface material to both the CPU and GPU during assembly. The upgraded compound lowers system temperatures under heavy load and reduces the likelihood of thermal throttling during sustained compute or graphics workloads. The build also includes a full quality-control pass with updated BIOS, driver installation, burn-in stress testing, and physical inspection before shipment.

128GB DDR5 5600 dual-channel memory

Two 64GB DDR5 5600 modules provide 128GB of system memory running in dual-channel mode for memory-intensive applications and multitasking. The chassis measures 15.91 by 12.09 by 1.26 inches and weighs 7.94 pounds. Integrated LAN and WLAN handle wired and wireless connectivity. The system carries a one-year warranty covering the customizations performed by the authorized BTO dealer.

How it compares

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

Price $4,605.99
Pricier than about 90% 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 120 Hz
Lower than about 90% of the 2,443 comparable items (median 165 Hz).

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Specifications

Product
Brand nameMSI
Product lineRaider 18 HX AI
Model nameRaider 18 HX AI A2XWJG-841US
Part numberMS-RAIDER18HXA2841-HID16P
Product colorCore Black
Design styleStandard
Product typeGaming
Recommended useConsumer
Processor
ProcessorIntel Core Ultra 9-285HX
Processor modelIntel Core Ultra 9 285HX
CPU cores24-core (8P+16E) Processor
Turbo clock speed5.5 GHz
L3 cache size36 MB
Memory
Memory size128 GB
RAM type and speed5600 MHz (Speeds subject to system capability)
Memory configuration2 × 64 GB
Storage
Storage drive1 TB M.2 PCIe NVMe Gen4 SSD
SSD storage1 TB
Hard driveNo
Storage configuration1 TB M.2 PCIe 4.0 x4 NVMe SSD
Display
Screen size18.0 in (45.7 cm)
Display resolution3840 × 2400
Refresh frequency120 Hz
Panel typeUHD+
Touch inputNo
Display18 in UHD+ 120 Hz
Display formatUHD+
Color gamut coverage100% DCI-P3
Screen featuresMini LED HDR
Graphics
Graphics processorNVIDIA GeForce RTX 5090 Laptop GPU
Video RAM24 GB
GPU modelNVIDIA® GeForce RTX™ 5090 Laptop GPU
Audio & video
Web cameraIR FHD w/shutter
Connectivity
NetworkingLAN and WLAN
LAN connectionGB LAN (Up to 2.5G)
Wi-FiKiller WiFi 7 BE1750
Bluetooth supportBT 5.4
Ports & slots
USB ports3x USB 3.2 Gen 2
Thunderbolt 3 support2x Thunderbolt™ 5 w DP/PD3.1
HDMI ports1x HDMI™ v2.1
Audio jacks1x Mic-in/Headphone-out Combo Jack
Memory card readerFull size SD UHS-III
Power
Power adapter400 W
Battery pack4 cell (99.9Whr) Li-Ion
Size & build
Overall dimensions15.91 inx 12.09 inx 1.26 in
Product weight7.94 lb (3.6 kg)
Software
Operating systemWindows 11 Pro
More details
Pointing deviceMulti Touch
KeyboardSteelSeries per-Key RGB with Anti-Ghost key (99 Key)

Questions about this item

Will the 128 GB DDR5 memory need to be replaced or can it be expanded later?

The laptop ships with two 64 GB DDR5 modules filling both slots, so any future increase would require replacing the existing sticks rather than adding to them.

Which component hits its thermal limit first during extended heavy loads on the Ultra 9-285HX and RTX 5090?

The CPU and GPU share a cooling solution upgraded with Gelid GC Extreme thermal compound, and either processor can reach its throttle point first depending on the workload mix.

How loud and hot does the 18 inch Mini LED chassis get when the system runs all day at 5.5 GHz turbo?

The Gelid GC Extreme paste lowers peak temperatures under sustained turbo, but fan speed and surface heat will still rise noticeably during continuous maximum performance.

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