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Midnight Black 18 inch gaming laptop thin profile matte finish

MSI

MSI Stealth A18 AI+ A3XWIG 18" UHD+ 120Hz Mini LED RTX 5080 64GB 2TB gaming laptop

SKU CH-A504-13P7F

An 18-inch UHD+ 120Hz Mini LED gaming laptop with a 12-core Ryzen AI 9 HX 370 processor, RTX 5080 graphics, 64GB DDR5 memory and a 2TB PCIe 4.0 NVMe SSD

  • Screen size18.0 in (45.7 cm)
  • ProcessorAMD Ryzen AI 300 Series
  • Graphics processorNVIDIA GeForce RTX 5080 Laptop GPU
  • Memory size64 GB
  • Storage drive2 TB M.2 PCIe 4.0 x4 NVMe SSD
  • Display resolution3840 × 2400

CPU Name AMD Ryzen AI 9 HX 370

Size 18.0"

Operating System Windows 11 Pro

GPU NVIDIA GeForce RTX 5080 Laptop GPU

Memory 64GB

SSD 2 TB

  • 18" UHD+ Mini LED display at 120 Hz for sharp visuals
  • AMD Ryzen AI 9 HX 370 12-core processor up to 5.1 GHz for heavy workloads
  • NVIDIA RTX 5080 GPU with 16 GB GDDR7 for high-end graphics
  • 64 GB DDR5 5600 MHz dual-channel memory for smooth multitasking
  • 2 TB PCIe 4.0 NVMe SSD for fast boot and load times

18" UHD+ 120Hz Mini LED Display

This MSI Stealth A18 AI+ laptop combines an 18-inch UHD+ Mini LED panel running at 120Hz with an AMD Ryzen AI 9 HX 370 processor and NVIDIA RTX 5080 graphics. The 12-core CPU reaches a maximum turbo frequency of 5.1 GHz and includes 36 MB of L3 cache. A 64 GB DDR5 memory kit and a 2 TB PCIe 4.0 x4 NVMe SSD complete the high-performance specification. The system ships with Windows 11 Pro installed.

Suited for Demanding Creative and AI Workloads

The 16 GB GDDR7 video memory and 64 GB system memory support intensive rendering, simulation and local AI inference tasks. The 12-core processor with 24 threads handles heavy multithreaded compilation and content creation pipelines. Buyers who primarily need portable office productivity or battery-optimised ultra-light travel should evaluate thinner alternatives with lower-power silicon.

Sustained Load Behaviour with Gelid GC Extreme

HIDevolution applies Gelid GC Extreme thermal interface material on the CPU and GPU to improve heat transfer under prolonged stress. The upgrade targets lower core temperatures during extended compute or gaming sessions, reducing the likelihood of thermal throttling. A full burn-in stress test validates thermal stability before shipment, confirming consistent performance over long durations rather than short bursts alone.

How it compares

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

Price $2,983.99
Pricier than about 80% 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 lineMSI Stealth A18 AI+
Model nameStealth A18 AI+ A3XWIG-009US
Part numberMS-STEALTHA18AI3009-HID1P
Product colorMidnight Black
Design styleStandard
Product typeGaming
Recommended useConsumer
Processor
ProcessorAMD Ryzen AI 9 HX 370
Processor modelAMD Ryzen AI 9 HX 370
CPU cores12-core Processor
Turbo clock speed5.1 GHz
L3 cache size36 MB
Memory
Memory size64 GB
RAM type and speed5600 MHz (Speeds subject to system capability)
Memory configuration2 × 32 GB
Maximum supported memory128 GB
Storage
Storage drive2 TB M.2 PCIe 4.0 x4 NVMe SSD
SSD storage2 TB
Hard driveNo
Storage configuration2 TB M.2 PCIe 4.0 x4 NVMe SSD
Display
Screen size18.0 in (45.7 cm)
Display resolution3840 × 2400
Refresh frequency120 Hz
Touch inputNon-Touch Screen
Display18 in UHD+ 120 Hz
Display formatUHD+
Screen featuresMini LED HDR
Graphics
Graphics processorNVIDIA GeForce RTX 5080 Laptop GPU
Video RAM16 GB
GPU modelNVIDIA® GeForce RTX™ 5080 Laptop GPU
Audio & video
Web cameraIR FHD w/shutter
Connectivity
NetworkingLAN and WLAN
LAN connection2.5GbE Lan
Wi-Fi802.11 be Wi-Fi 7
Bluetooth supportBT 5.4
Ports & slots
USB ports2x Type-A USB3.2 Gen2
Thunderbolt ports2x Type-C (USB4® / DisplayPort™/ Power Delivery 3.1/ Thunderbolt™ 4 compatible)
HDMI ports1x HDMI™ 2.1 (8K @ 60 Hz / 4K @ 120 Hz)
Audio jacks1x Mic-in/Headphone-out Combo Jack
Memory card readerSD Express Card Reader
Power
Power adapter280 W
Battery pack4 cell (90Whr) Li-Ion
Size & build
Overall dimensions15.74 in × 11.41 in × 0.94 in
Product weight6.39 lb (2.9 kg)
Software
Operating systemWindows 11 Pro
More details
Pointing deviceMulti Touch
KeyboardSteelSeries per-Key RGB with Anti-Ghost key (99 Key)

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Questions about this item

Will the 18 inch UHD+ 120Hz Mini LED display fit in a standard 18 inch laptop sleeve?

The chassis measures 15.74 inches wide by 11.41 inches deep by 0.94 inches high. Compare those dimensions to the sleeve's internal space before buying.

Does the 64 GB DDR5 5600MHz memory configuration leave any slots free for future expansion?

The 64 GB kit uses two 32 GB modules in dual channel. The board has no spare slots, so capacity is fixed at 64 GB.

What does the Gelid GC Extreme thermal compound upgrade do for the Ryzen AI 9 HX 370 and RTX 5080?

The high conductivity TIM lowers CPU and GPU temperatures under load, reducing throttling during intensive tasks.

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