BEST PERFORMING RTX 5090 PC:As of April 7,Japan MainGear MG-1 Ultimate (Intel) is available for $5,649. A top-tier gaming PC with an RTX 5090, Intel Core Ultra 285K, and zero bloatware.
Opens in a new window Credit: MainGear MainGear MG-1 Ultimate (RTX 5090) $5,649 at MainGear At $5,649, MG-1 Ultimate isn’t the kind of PC you casually “add to cart.” It’s the kind of machine you daydream about while pretending to care about whatever someone just said on your Zoom call. This thing is a full-blown performance warlock in a tasteful RGB robe—and I’m seriously tempted.
I’ve built my own gaming PCs. I’ve spent hours squeezing cables into cases not meant for human hands. So when I look at this build and see that MainGear has not only routed every cable perfectly, but also thrown in custom GPU supports and magnetic faceplates like it’s no big deal, I get a little emotional. The MG-1 Ultimate isn’t a pre-built—it’s an ego-safe flex.
Under the hood, you’re getting an NVIDIA GeForce RTX 5090, paired with Intel’s brand-new Core Ultra 285K. That’s an unholy alliance of power and efficiency that should laugh in the face of 4K gaming, modded hellscapes, and literal game development pipelines. The default loadout gives you 32GB of DDR5 RAM and a 2TB Gen4 SSD, but if you want to double those for even more absurdity, go ahead and hit the “Boost” button. At this price point, you’ve already passed the point of restraint.
Price: $5,649
Retailer: MainGear
Graphics: NVIDIA GeForce RTX 5090
Processor: Intel Core Ultra 285K
Memory: 32GB RGB DDR5 6400MT/s (Upgradeable to 64GB)
Storage: 2TB T-Force A440 SSD (Upgradeable to 4TB)
Operating System: Windows 11 Home (Upgradeable to Pro)
Cooling: MAINGEAR Epic 360 AiO Liquid Cooler with 3x 120mm RGB Fans
Power Supply: FSP 1200W 80+ Platinum
Lighting: RGB front panel, internal RGB, and RGB rear fan (controlled by remote or software)
Connectivity: Wi-Fi 7, Bluetooth 5.4
Rear I/O: HDMI, 2.5Gbps LAN, Thunderbolt 4, USB 3.2 (10Gbps and 5Gbps), USB 2.0, audio jacks
Front I/O: USB 3.2 (Type-A and Type-C), combo audio jack
Dimensions: 16.88 inches (Width) x 19 inches (Height) x 8.125 inches (Depth)
Weight: 32 pounds
Cooling? Covered by MainGear’s Epic 360 AiO with a disco of RGB fans. Power? A 1200W Platinum-rated PSU. Connectivity? Thunderbolt 4, Wi-Fi 7, Bluetooth 5.4, and enough USB ports to connect your entire peripheral museum. And the OS is bloatware-free, with BIOS settings tuned out of the box for maximum performance. No post-setup headaches, just pure gaming indulgence.
In my opinion, this is for the gamer who wants to skip the endless compatibility spreadsheets and jump straight to bragging rights. If the MG-1 Platinum is MainGear showing off its polish, the Ultimate is it firing on all cylinders. It’s excessive. It’s glorious. And it might just be my next terrible financial decision.
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