- GMKTEC NUCBOX M6 Ultra supports memory extension up to 128 GB across double channels
- Users can switch between 35w Silent Mode and 50W Game Performance
- Image rates between 80 and 186 FPS are advertised for modern titles
The Nucbox M6 Ultra from GMKTEC is launched on the Mini -PC market and claims benefit levels usually linked to larger desktop systems.
This home entertainment unit, which can also act as a Business PC or even a WorkStation -PC, is currently listed on the GMKTEC’s site for $ 389.99, down from $ 519.99.
To celebrate his debut, GMKTEC offers a launch discount of $ 12 with promo code PRM6U12 (Valid from August 20 to 31 August 2025). It also offers free worldwide shipping, one year warranty and a seven-day return option.
Ryzen -Processor and Radeon -Grafik in the core
In the heart of GMKTEC NUCBOX M6 Ultra is AMD Ryzen 5 7640HS processor, a six-core, twelve-thread chip built on a 4NM process.
Its watch speed reaches up to 5.0 GHz, with cache divided between 6 MB L2 and 16MB L3.
On the graphic time, this unit is driven by the integrated AMD Radeon 760m, which is based on the RDNA 3 design.
GMKTEC claims that this unit works close to a GTX 1650 TI and supports FSR 2.0+ upscaling.
Buyers can choose a clear-to-use configuration with 32 GB of DDR5 memory and a 1TB NVME SSD or choose a barebone kit that does not include RAM, storage or operating system. The Barebone model costs $ 259.99.
The small chassis measures 128.8 × 127 × 47.8 mm and weighs just over 528 grams provides support for double M.2 2280 SSD slots that can be expanded up to 8TB. Its memory capacity reaches a maximum of 128 GB over two DDR5 channels.
GMKTEC NUCBOX M6 Ultra supports wide display connection, including HDMI 2.0, DisplayPort and USB4 outputs that enable triple-screen setups and even 8K resolution.
I/O selection includes several USB3.2 Gen2 ports, a USB2.0 port, a USB4.0 connector capable of 40 Gbps transfer rates and 100W PD input and a standard 3.5 mm audio plug.
For wireless and network connection, it offers WiFi 6E, Bluetooth 5.2 and two 2.5 g Ethernet gates. These settings provide the system with flexibility for both tasks and entertainment setups.
M6 Ultra incorporates a three-mode power switch: silent mode at 35W for media playback, balanced state at 45W for general productivity and performance state at 50W aiming for games.
GMKTEC suggests that the system can handle modern 1080p titles with image speeds from 80 to 186 fps, depending on the game.
GMKTEC is a household name in the mini-PC market, but with such specifications, everyone under $ 400 needs skepticism for its long-term performance and durability compared to larger desktop buildings.



