GMKtec NucBox K4

Updated on January 26, 2026

In a world where desk space is at a premium, and the demand for powerful yet compact computing solutions is ever-growing, the GMKtec NucBox K4 Mini PC emerges as a noteworthy contender. This diminutive device packs a punch with its AMD Ryzen 9 7940HS processor and integrated AMD Radeon 780M graphics. Ideal for multitaskers and performance seekers, the NucBox K4 promises to deliver desktop-level power in a form factor that fits in the palm of your hand.

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GMKtec NucBox K4 Comparison Chart

	GMKtec NucBox K4	GMKtec NucBox K4
Price	List Price: $849.99 Amazon Prices: Loading prices...	List Price: $797.99 Amazon Prices: Loading prices...
Version	32GB/2TB/AMD Ryzen 9 7940HS	32GB/1TB/AMD Ryzen 9 7940HS
Perfomance Rating	9.3	9.3
Operating System	Windows 11 Pro	Windows 11 Pro
Processor	Octa-core 4.00 Ghz (max 5.20 Ghz) AMD Ryzen 9 7940HS	Octa-core 4.00 Ghz (max 5.20 Ghz) AMD Ryzen 9 7940HS
GPU	Integrated AMD Radeon 780M	Integrated AMD Radeon 780M
RAM	32 GB	32 GB
Internal Storage	2 TB	1 TB
Dimensions width x length x thickness	4.84 x 4.4 x 1.7 inches (122.94 x 111.76 x 43.18 mm)	4.84 x 4.4 x 1.7 inches (122.94 x 111.76 x 43.18 mm)
Weight	0.93 lbs (0.42 kg)	0.93 lbs (0.42 kg)
WiFi	Wi-Fi 6 (802.11ax)	Wi-Fi 6 (802.11ax)
Bluetooth	Bluetooth 5.2	Bluetooth 5.2
Ethernet	1 Ethernet port at 2.5 Gbps	1 Ethernet port at 2.5 Gbps
HDMI	2 Full-Size HDMI Ports	2 Full-Size HDMI Ports
DisplayPort	DisplayPort 1.4 over USB-C	DisplayPort 1.4 over USB-C
VGA	No VGA Ports	No VGA Ports
USB Ports	1 USB 2.0, 3 USB 3, 1 USB 4, 1 USB-C	1 USB 2.0, 3 USB 3, 1 USB 4, 1 USB-C
Thunderbolt Ports	1	1
Internal SATA Ports	No SATA ports	No SATA ports
Card Reader	No Card Reader	No Card Reader
Headphone Jack	combo	combo
Fanless	No	No
VESA Mount	Yes	Yes
In the Box	GMKtec Nucbox K4, Power Adapter, VESA Mount with Screws, HDMI Cable, User Manual	GMKtec Nucbox K4, Power Adapter, VESA Mount with Screws, HDMI Cable, User Manual
Expandability	Memory and NVMe are user accessible and replaceable	Memory and NVMe are user accessible and replaceable

In-Depth Look at the GMKtec NucBox K4

The GMKtec NucBox K4 is a mini PC that defies expectations with its size-to-performance ratio. Measuring just 4.84 x 4.40 x 1.7 inches and weighing a mere 0.93 lbs, it epitomizes portability without sacrificing capability. The ability to upgrade to 64GB of DDR5 RAM and 2TB of storage ensures that the NucBox K4 remains relevant as your computing needs evolve.

Adept at maintaining a balance between power and efficiency, the NucBox K4’s cooling system is engineered to dissipate heat effectively, keeping the performance steady. The array of ports, including USB-C with DisplayPort 1.4 and 2.5G Ethernet, caters to diverse connectivity needs, while the VESA mount inclusion is a nod to space-saving ergonomics.

Energy-conscious users will appreciate the NucBox K4’s idle power draw of around 11 watts. Its prowess extends to high-demand applications such as 3D gaming and content creation, supported by Windows 11 Pro’s modern features and Linux compatibility for those who prefer an alternative OS.

Expert Reviews of the GMKtec NucBox K4 Mini PC

Insights from ETA PRIME

ETA PRIME’s review of the GMKtec NucBox K4 highlights its powerful hardware and performance. The Ryzen 9 7940HS APU and Radeon 780M iGPU are praised as “the most powerful APU on the market.” The flexibility to choose between a fully configured system or a bare-bones kit is appreciated, as is the ease of upgrading the device’s components.

The Mini PC’s gaming performance is notable, with the ability to run demanding games at respectable frame rates. Power efficiency is also a strong suit, with a maximum consumption of 79 watts under heavy load. The reviewer concludes that the GMKtec NucBox K4 offers high performance in a small package, making it suitable for various applications, from casual computing to gaming. The potential to increase the TDP for enhanced performance is also mentioned as an option for power users.

Team Pandory’s Perspective

Team Pandory’s review emphasizes the NucBox K4’s compact size and premium feel. The device’s hardware specifications, including the 8-core Ryzen CPU, 32GB of DDR5 RAM, and 1TB PCIe 4 NVMe SSD, are lauded for their ability to easily handle diverse tasks such as 4K video streaming and music production.

The review highlights the Mini PC’s strong multi-core processing capabilities and its prowess in emulation. The possibility of adjusting the TDP in the BIOS is discussed, with a cautionary note about potential overheating. Despite concerns about cooling and early-stage drivers, the NucBox K4 is recommended for productivity and emulation enthusiasts.

TechTablets’ Technical Deep Dive

TechTablets provides a comprehensive technical review with detailed thermal testing that reveals critical information for potential buyers. Chris praises the toolless design, noting that internal access is achieved by simply removing the pop-off lid, making RAM and SSD upgrades straightforward. The benchmarks show strong performance, with Cinebench R23 scores of 13,037 multi-core and 1,680 single-core.

However, the thermal testing uncovered significant concerns. Under sustained load, the CPU reached a dangerous 102.5°C, causing severe throttling and even forcing the system into sleep mode. The exterior case temperature reached 56°C, prompting the reviewer to comment, “I was very surprised to almost burn myself touching it.” For users planning extended workloads, this thermal behavior is an important consideration. The review concludes that while the K4 performs exceptionally for short bursts and gaming sessions, the cooling system struggles with sustained heavy loads.

TechRadar’s Professional Assessment

TechRadar’s review offers extensive benchmark data and real-world testing. Their evaluation highlighted the K4’s ability to handle demanding tasks like 4K video editing in Premiere Pro, with GeekBench multi-core scores reaching 12,584 and PCMark hitting 7,532. The reviewer appreciated the professional design, calling it “a refreshing departure from typical gamer-centric aesthetics” that suits creative workspaces.

Power efficiency testing showed idle consumption of just 11 watts, with gaming averaging 67 watts and peak consumption reaching 79 watts. While praising the performance-to-size ratio, the review echoes thermal concerns and notes that the standard 1TB storage “feels limited for video and creative work.” Overall, TechRadar describes it as “an excellent choice if you’re seeking a balance of power, portability, and design.”

All reviews consistently praise the NucBox K4’s exceptional performance from its AMD Ryzen 9 7940HS and Radeon 780M combination, along with its compact form factor and upgradeability. The recurring theme across reviewers is the thermal management challenge, which potential buyers should consider based on their intended workloads.

Customer Reviews on the GMKtec NucBox K4 Mini PC

Customers have expressed satisfaction with the GMKtec NucBox K4, citing its compact design and powerful performance that adeptly manages tasks like 3D gaming, image editing, and video processing. The Mini PC’s 4K display capabilities and robust GPU are highlighted for their contribution to an enhanced gaming experience.

While the thermal management system is generally praised, some users have reported overheating issues leading to performance throttling. DIY modifications, such as external cooling enhancements, have addressed this. GMKtec’s customer service is commended for their prompt and supportive responses to issues.

The NucBox K4’s quick operation, energy efficiency, and silent performance are additional praise points. The VESA mount and Linux compatibility are thoughtful inclusions that add to the device’s appeal. Overall, the GMKtec NucBox K4 is viewed as a competitive option for those seeking a minimalist yet powerful desktop setup.

Conclusion and Recommendations

The GMKtec NucBox K4 is tailored for users seeking a high-performance Mini PC that doesn’t compromise portability. Its AMD Ryzen 9 7940HS processor and Radeon 780M graphics make it a formidable choice for gaming, content creation, and multitasking. The upgradeability of RAM and SSD storage positions it as a future-proof investment.

However, alternative Mini PCs with more robust cooling or external graphics capabilities may be more suitable for users desiring the latest in display connectivity or who may face thermal challenges. The NucBox K4 strikes a balance between performance and form factor, appealing to those who desire a desktop replacement or portable workstation. Users can utilize Starry Hope’s Mini PC Comparison Chart for a broader comparison.