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MSI Stealth A18 AI+ A3XW
MSI's 18-inch Stealth A18 AI+ A3XW pairs the AMD Ryzen AI 9 HX 370 with a GeForce RTX 5080 Laptop GPU. The US A3XWIG-009US model has 64GB of DDR5-5600, a 2TB SSD, an 18-inch 3840x2400 120Hz Mini-LED display and a 99.9Wh battery; other A3XW versions use the same CPU with RTX 5070 Ti or 5090 graphics.
Pros
- 18-inch 3840x2400 Mini-LED display at 120Hz with HDR 1000 and 100% DCI-P3
- 64GB of DDR5-5600 in two 32GB modules and a 2TB PCIe Gen4 SSD out of the box
- 99.9Wh battery with a 280W power adapter
- Two USB4 Type-C ports (Thunderbolt 4 compatible), two USB-A, HDMI 2.1, SD card reader and 2.5G Ethernet
- Wi-Fi 7 and Bluetooth 5.4
Cons
- Weighs about 2.9kg and is up to 24mm thick, heavy for a laptop
- Priced around $3,849 in this 64GB, RTX 5080 configuration
- Ships with a 1-year limited warranty in the US
- Large 280W power adapter
Average
Computed from specs & benchmarks via our public methodology.
Performance uses the published results of the AMD Ryzen AI 9 HX 370, because we have no benchmark result for this device itself yet.
Full specifications
Everything we track for the MSI Stealth A18 AI+ A3XW
Display
- Screen size
- 18 ″
- Panel type
- Mini-LED
- Resolution
- 3840x2400
- Refresh rate
- 120 Hz
Performance
- Processor
- AMD Ryzen AI 9 HX 370
- Graphics
- NVIDIA GeForce RTX 5080 Laptop GPU (16GB GDDR7)
- RAM
- 64 GB
- RAM type
- DDR5-5600 (2x 32GB)
- Storage
- 2,048 GB
- Storage type
- PCIe 4.0 NVMe SSD
Battery
- Capacity
- 100 Wh
- Charging
- 280 W
Design
- Weight
- 2.9 kg
- Thickness
- 24 mm
Connectivity
- Ports
- 2x USB4 Type-C (DisplayPort, PD 3.1, Thunderbolt 4 compatible), 2x USB-A 3.2 Gen 2, HDMI 2.1, SD card reader, 2.5G Ethernet, 3.5mm combo jack
- Wi-Fi
- Wi-Fi 7
- Bluetooth
- 5.4
- Webcam
- IR FHD with privacy shutter
Software
- Operating system
- Windows 11 Home
Quick answers
Is the MSI Stealth A18 AI+ A3XW good in 2026?
The MSI Stealth A18 AI+ A3XW earns an Inno Score of 57.5/100 (“Average”) based on its specs and benchmark results. MSI's 18-inch Stealth A18 AI+ A3XW pairs the AMD Ryzen AI 9 HX 370 with a GeForce RTX 5080 Laptop GPU. The US A3XWIG-009US model has 64GB of DDR5-5600, a 2TB SSD, an 18-inch 3840x2400 120Hz Mini-LED display and a 99.9Wh battery; other A3XW versions use the same CPU with RTX 5070 Ti or 5090 graphics.
What are the key specs of the MSI Stealth A18 AI+ A3XW?
Processor: AMD Ryzen AI 9 HX 370 · RAM: 64 GB · Screen size: 18 ″ · Weight: 2.9 kg
What are the closest alternatives to the MSI Stealth A18 AI+ A3XW?
Its closest rivals on InnoReviews are ASUS Zenbook S 16 (UM5606), Asus Zenbook 14 OLED UX3480AA, Dell XPS 14 (2026) — open the comparison pages for a spec-by-spec breakdown.
