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Maingear Boosted 18-inch Gaming Laptop Intel Core Ultra 9 64 GB 4 TB SSD GeForce RTX 5090 - Grey

Maingear Boosted 18-inch Gaming Laptop Intel Core Ultra 9 64 GB 4 TB SSD GeForce RTX 5090 - Grey

Best price now

$5,219.00at Best BuyObserved at 12:33 PM

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Our take on the Maingear Boosted 18-inch Gaming Laptop Intel Core Ultra 9 64 GB 4 TB SSD GeForce RTX 5090 - Grey

The Maingear Boosted 18 is a desktop-replacement gaming laptop built around Intel's Core Ultra 9, an RTX 5090, 64 GB of DDR5 and a 4 TB SSD on an 18-inch screen. That combination puts it at the top of the current laptop stack for gaming and heavy creative work, with the size and weight to match. As of November 7, 2026, the best new price is $5,219.00 at Best Buy, the only store listing it new, so there is no lower recent price to compare against.

Best forGamers who want maximum frame rates at high resolutionVideo editors and 3D artists rendering on the goBuyers replacing a desktop with one machineEnthusiasts who keep large game and project libraries
Pros
  • RTX 5090 is the fastest laptop GPU tier available
  • Core Ultra 9 and 64 GB DDR5 handle heavy multitasking
  • 4 TB SSD leaves room for large game and media libraries
  • 18-inch panel gives a roomier view than 16-inch rivals
Cons
  • $5,219.00 at Best Buy is a steep price for one machine
  • 18-inch chassis is heavy and awkward to carry daily
  • Battery life will be short under gaming loads
  • Only one store lists it new, so price competition is limited

Maingear Boosted 18-inch Gaming Laptop Intel Core Ultra 9 64 GB 4 TB SSD GeForce RTX 5090 - Grey prices at every store

  • Best BuyNew

    In stock

    $5,219.00Free shippingObserved at 12:33 PM
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Store links may earn us a commission. Price via Klarna.

Maingear Boosted 18-inch Gaming Laptop Intel Core Ultra 9 64 GB 4 TB SSD GeForce RTX 5090 - Grey price history

Lowest price we've seen: $5,219.00 on Nov 7 at Best Buy. Tracked across 1 store since Nov 7.

Specifications

Dedicated Graphic Card
YesSource
Processor
Intel Core Ultra 9Source
SSD Size
4 TBSource
Color
GraySource
Screen Size (")
18.0Source
Hard Drive Type
SSDSource
Graphics Card Nvidia
GeForce RTX 5090Source
Memory Type
DDR5Source
RAM
64 GBSource

Questions and answers

Is the Maingear Boosted 18 worth $5,219.00?
It is aimed at buyers who want the fastest laptop parts without a desktop. At $5,219.00 at Best Buy as of November 7, 2026, you pay a premium for the RTX 5090, 64 GB of RAM and 4 TB of storage in one chassis.
How does it compare with a 16-inch RTX 5090 laptop?
The main differences are the larger 18-inch screen and the heavier chassis. Performance parts can be similar, but the bigger body usually allows more cooling headroom.
Is 64 GB of RAM and a 4 TB SSD overkill?
For gaming alone, yes. They matter for video editing, 3D rendering, virtual machines and large game libraries, where 32 GB and 1 to 2 TB often run out first.
How is battery life on an 18-inch gaming laptop?
Expect short runtime under gaming or rendering loads and only a few hours of light use. Plan to keep the power adapter nearby.
What comes in the box?
A laptop like this typically ships with the power adapter and standard documentation. Check the Best Buy listing for the exact included accessories.
When is the best time to buy it?
High-end laptops usually see discounts around major sales events and when a new GPU generation arrives. With only one new listing at $5,219.00 as of November 7, 2026, watch for the first price drop.
Where is the Maingear Boosted 18-inch Gaming Laptop Intel Core Ultra 9 64 GB 4 TB SSD GeForce RTX 5090 - Grey cheapest?
At Best Buy, for $5,219.00, as of our latest check.

Stores we've priced the Maingear Boosted 18-inch Gaming Laptop Intel Core Ultra 9 64 GB 4 TB SSD GeForce RTX 5090 - Grey at

  • Best Buy deals and prices