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Deal.ai › MSI › Laptops
MSI
MSI Stealth A18 AI+ 18 Inch UHD Gaming Laptop

MSI Stealth A18 AI+ 18 Inch UHD Gaming Laptop

Best price now

$3,999.00at MSIChecked 5 h ago

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Price facts

  • Lowest price today: $3,999.00 at MSI (checked Nov 11, 2026).

Our take on the MSI Stealth A18 AI+ 18 Inch UHD Gaming Laptop

The MSI Stealth A18 AI+ is an 18-inch desktop-replacement gaming laptop built around AMD's Ryzen AI 9 HX 370 and Nvidia's top GeForce RTX 5090, with 64 GB of RAM and a 2 TB SSD. Its 18-inch 4K UHD panel is the standout: most 18-inch gaming laptops settle for QHD or 16:10 panels, so this one targets players who want sharpness over frame rate. The large chassis gives the cooling more room than 16-inch rivals, but it is heavy and not something you carry daily. It suits creators and gamers who want one machine for 4K work and play and rarely move it.

Best forDesktop-replacement gaming4K video and photo editingSim and strategy playersBuyers who want maximum specs in one machine
Pros
  • RTX 5090 and Ryzen AI 9 HX 370 handle 4K gaming and heavy creative work
  • 64 GB RAM and 2 TB SSD leave little need to upgrade
  • 18-inch 4K UHD screen is sharper than the QHD panels most 18-inch rivals use
  • Larger chassis gives the cooling more headroom than 16-inch laptops
  • Strong port selection typical of MSI's Stealth line
Cons
  • Heavy and bulky; not a laptop you carry far
  • 4K on a gaming GPU means lower frame rates than QHD rivals unless you drop resolution
  • High-end parts draw a lot of power, so battery life is short
  • Runs warm and fan noise rises under load
  • Premium tier pricing for the top GPU

MSI Stealth A18 AI+ 18 Inch UHD Gaming Laptop prices at every store

  • MSINew

    In stock

    $3,999.00Free shippingChecked 5 h ago
    Visit MSI

Store links may earn us a commission. Price via Klarna.

MSI Stealth A18 AI+ 18 Inch UHD Gaming Laptop price history

Lowest price we've seen: $3,999.00 on Nov 11 at MSI. Tracked across 1 store since Nov 11.

About the MSI Stealth A18 AI+ 18 Inch UHD Gaming Laptop

The MSI Stealth A18 AI+ is an 18-inch gaming laptop with a 4K Ultra HD display at 3840x2160 resolution. It comes in black.

It is powered by an AMD Ryzen AI 9 HX 370 processor and a dedicated NVIDIA GeForce RTX 5090 graphics card. It has 64 GB of RAM and a 2 TB SSD for storage.

Screen size
18.0 inches
Resolution
3840x2160 (4K Ultra HD)
Processor
AMD Ryzen AI 9 HX 370
Graphics
NVIDIA GeForce RTX 5090 (dedicated)
RAM
64 GB
Storage
2 TB SSD
Color
Black

Specifications

Screen Resolution
3840x2160 (4K Ultra HD), 3840x2400Source
Dedicated Graphic Card
YesSource
Processor
AMD Ryzen AI 9Source
Color
BlackSource
SSD Size
2 TBSource
Screen Size (")
18.0Source
Hard Drive Type
SSDSource
Processor Model
HX 370Source
Graphics Card Nvidia
GeForce RTX 5090Source
RAM
64 GBSource

Questions and answers

Is the 4K screen worth it over a QHD 18-inch laptop?
For sharpness in creative work and slower games, yes. For competitive shooters, a QHD panel gives higher frame rates from the same GPU. You can lower the resolution in games when you want speed.
Can it run modern games at 4K?
The RTX 5090 is Nvidia's top laptop GPU, so it handles most current titles at 4K with settings tuned. Demanding ray-traced games will need upscaling or a drop to QHD to stay smooth.
How does it compare with the previous Stealth 18?
This generation moves to AMD's Ryzen AI 9 HX 370 and the RTX 5090, with more memory and storage on tap. The 18-inch 4K screen and large-chassis cooling carry over.
Is 64 GB of RAM useful for gaming?
Games rarely need more than 32 GB. The extra memory helps with video editing, 3D work, virtual machines and heavy multitasking alongside a game.
How loud and hot does it get?
Expect audible fans and warm surfaces under sustained gaming or rendering. The 18-inch body helps, but top-tier parts still push the cooling hard.
What is in the box?
The laptop, its power adapter and the usual paperwork. MSI does not bundle a mouse or headset.
Where is the MSI Stealth A18 AI+ 18 Inch UHD Gaming Laptop cheapest?
At MSI, for $3,999.00, as of our latest check.

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