Maingear unveils its new Ultima 18-inch gaming laptop with 4K 200Hz display and RTX 5090 GPU
Maingear has designed another high-end gaming laptop that promises desktop performance and connectivity. The American manufacturer strives to create durable custom builds for offices and gaming rooms. The Ultima 18 looks to continue that trend, powered by an Intel Core Ultra 9 processor and up to an Nvidia RTX 5090 GPU. While on the chunky side, the 18-inch laptop offers a high refresh rate 4K display. The Ultima 18 starts at $3,599, with customization available now on Maingear's site.
Maingear Ultima 18 specs
- CPU: Intel Core Ultra 9 275HX (24 cores, 5.4GHz Turbo Boost)
- GPU: Up to NVIDIA GeForce RTX 5090 Mobile GPU (24GB GDDR7)
- Display: 18.0” 4K (3840x2400) 200Hz, G-SYNC, 100% DCI-P3, <7ms
- Memory: Up to 192GB DDR5 (4x48GB)
- Storage: Up to 4x M.2 SSDs (1x Gen5x4, 3x Gen4x4)
- Connectivity: 2x Thunderbolt 5, Wi-Fi 7, 2x 2.5Gb LAN, HDMI 2.1, microSD, 2x USB-A (1x with PD), Bluetooth 5.4
- Battery: 98WHr, 8-cell Lithium Polymer
- Weight: 8.8 lbs. (3.99kg)
Buyers may find similarities between the new Maingear laptop and the recently released Razer Blade 18. The notebooks utilize the 24-core Core Ultra 9 275HX CPU, which is among the most powerful mobile processors. With a 16:10 aspect ratio, both gaming laptop options also ship with a 4K 3840x2400 resolution screen. However, the Ultima display lacks a dual-mode option and is limited to a 200Hz refresh rate. For competitive gaming, Maingear advertises a modest response time of under 7ms. The 2025 Blade 18 is also somewhat more compact at just over 7 lbs.
The Ultima 18 may not have many rivals when it comes to upgradability. It's the first Maingear laptop to employ dual-channel DDR5 memory, and owners can install up to 192GB of low-latency RAM. The Ultima also has room in its chassis for four M.2 SSDs, with one PCI Express 5.0 slot.
The design of the Maingear notebook exudes industrial qualities with a healthy dose of metal. Gamers may appreciate the keyboard, which features per-key RGB lighting effects that extend to its backside. Unlike some competitors, the Ultima 18 offers rear connectivity that includes dual 2.5Gb LAN ports. Other highlights are a pair of Thunderbolt 5 ports and WiFi 7 support.
With top-end specs and a reinforced shell, the 18-inch laptop checks in at a hefty 8.8 lbs. Battery life may also determine how often the Ultima 18 leaves desktops. Maingear packed a 98WHr lithium polymer battery into the machine. Owners can top up the laptop's power with a downsized 330-watt adapter or through USB-C.
Please keep in mind that Maingear, like Schenker/XMG, Eluktronics and several other brands with the same business model, does not design its laptops on its own; instead, it buys mostly complete systems from OEMs such as Clevo and Tongfang. This means other brands may sell essentially the same laptops as the Ultima albeit with slightly different looks, specifications and prices.
Source(s)
Press release via Maingear PR
MAINGEAR Unleashes ULTIMA 18 – The Ultimate 18" Gaming Laptop for Players Who Demand Extreme Performance
Equipped with Intel Core Ultra 9, up to NVIDIA RTX 5090 graphics, and a blistering 4K 200Hz G-SYNC display, the ULTIMA 18 is a full-featured desktop replacement built for next-level domination
WARREN, New Jersey – June 11, 2025 – MAINGEAR, the leader in premium-quality, high-performance gaming PCs, today announced its most powerful laptop to date, the 18-inch ULTIMA 18. Developed in collaboration with CLEVO, ULTIMA 18 redefines what a gaming laptop can be by offering desktop-level specs, like a 4K@200Hz G-SYNC display, Intel® Core™ Ultra 9 275HX processor, and up to an NVIDIA® GeForce® RTX™ 5090 mobile GPU, all inside a sleek chassis outfitted with metal lid and palm rest.
Designed for elite gamers and creators who demand top-tier performance without compromise, ULTIMA 18 is MAINGEAR’s first laptop to support modern dual-channel DDR5 memory, PCIe Gen5 SSDs, dual Thunderbolt™ 5 ports, and Wi-Fi 7. Whether plugged in or on the move, this system delivers unprecedented power, quiet efficiency, and immersive visuals for the most demanding workloads and graphics-rich game titles.
“ULTIMA 18 isn’t just a laptop, it’s a no-compromise desktop-class gaming rig that fits in a backpack,” said Wallace Santos, CEO of MAINGEAR. “We’ve engineered this notebook to handle the latest AAA games, creative workloads, and AI-driven applications with headroom to spare. From the raw horsepower to the fine details, this system embodies everything our gamers expect from a premium MAINGEAR gaming system.”
4K Gaming and Creative Power, Fully Unlocked
Featuring a jaw-dropping 18.0-inch 4K (3840 x 2400) 200Hz display with 100% DCI-P3 color gamut, G-SYNC support, and a 16:10 aspect ratio, ULTIMA 18 offers both vibrant color and lightning-fast refresh rates for fluid gameplay and pro-grade content creation. With a display response time of less than 7ms, every action-packed gaming scene is sharp, fast, and tear-free.
Full-Throttle Specs Built to Win
Inside, ULTIMA 18 is powered by the new Intel Core Ultra 9 275HX processor (24 cores, 5.4GHz Turbo), paired with up to NVIDIA RTX 5090 or 5080 mobile GPUs (up to 24GB GDDR7, 175W TGP). Combined with support for up to 192GB of DDR5 memory and four M.2 NVMe SSDs, including PCIe Gen5 from Samsung, ULTIMA 18 crushes load times, multitasks effortlessly, and keeps up with the most demanding creative and gaming workflows.
Total System Control With Control Center and NVIDIA Advanced Optimus
Like all MAINGEAR systems, the Ultimate is free from any OS-choking bloatware. It is also equipped with Control Center, an application that allows users to quickly swap performance modes, customize per-key RGB lighting, adjust fan profiles, and assign macros. NVIDIA Advanced Optimus seamlessly switches between integrated and discrete graphics, maximizing battery life without sacrificing performance.
Desktop-Class I/O and Advanced Connectivity
With rear- and side-facing ports, gamers can plug in and expand with dual Thunderbolt 5 ports, HDMI 2.1, USB-A with Power Delivery-out, microSD reader, dual 2.5Gb LAN, and next-gen Wi-Fi 7. Whether docked at a battle station or streaming wirelessly, ULTIMA 18 is future-ready with robust, high-speed connectivity options, including the latest AR and VR headsets.
Built for the Road, Tuned to Win
Even with its extreme performance capabilities, ULTIMA 18 keeps powered with a massive 98Wh battery, and is equipped with a compact, new 330W charger that is not only powerful but backpack-friendly. If a charge is needed in a pinch, the laptop also supports USB-C charging. The customizable per-key RGB keyboard with dedicated Copilot key, powerful 5-point audio system with two drivers, two tweeters and a subwoofer, powered by Sound Blaster Studio Pro 2, and a 5MP Windows Hello camera with IR round out a premium feature set tailored for serious gamers.
ULTIMA 18 Key Specifications:
● Processor: Intel Core Ultra 9 275HX (24 cores, 5.4GHz Turbo Boost)
● Graphics: Up to NVIDIA GeForce RTX 5090 Mobile GPU (24GB GDDR7)
● Display: 18.0” 4K (3840x2400) 200Hz, G-SYNC, 100% DCI-P3, <7ms
● Memory: Up to 192GB DDR5 (4x48GB)
● Storage: Up to 4x M.2 SSDs (1x Gen5x4, 3x Gen4x4)
● Connectivity: 2x Thunderbolt 5, Wi-Fi 7, 2x 2.5Gb LAN, HDMI 2.1, microSD, 2x USB-A (1x with PD), Bluetooth 5.4
● Battery: 98WHr, 8-cell Lithium Polymer
● Weight: 8.8 lbs. (3.99kg)
● Audio: 5 Speakers including tweeters and Subwoofer + Sound Blaster Studio Pro 2
● Camera: 5.0MP FHD Hello Camera with Presence Sensor and Privacy Cover
● Software: Control Center, NVIDIA Advanced Optimus, Zero-Bloatware Windows 11 Installation
Every ULTIMA 18 is backed by MAINGEAR’s industry-leading build quality, meticulous component selection, and award-winning lifetime support. Starting at $3,599, ULTIMA 18 is available now at www.maingear.com in pre-configured and customizable variations. Pre-configured models can be ordered with MANGEAR’s “Boost” option which doubles the RAM and SSD capacity.
To learn more or customize your ULTIMA 18, visit maingear.com/ultima-18.
