GMKtec NucBox K3 Pro

The GMKtec NucBox K3 Pro is a 2022 mini PC built around the 10-core Intel Core i7-12650H, with 24GB of soldered LPDDR5, a 1TB NVMe SSD, and a USB4 port that can drive an external GPU. Robtech ran the i7-12650H model through a benchmark roundup and an eGPU test, and Team Pandory used it as an unboxing-to-music-production walkthrough. Both called it a strong little Intel box for editing and emulation, but not a gaming machine on its integrated graphics.

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GMKtec NucBox K3 Pro Comparison Chart

	GMKtec NucBox K3 Pro
Price	List Price: $609.99 Amazon Prices: Check Price on Amazon
Version	24GB/1TB/Intel Core i7-12650H
Performance Rating	5.1
Operating System	Windows 11 Pro
Processor	Deca-core 3.50 Ghz (max 4.70 Ghz) Intel Core i7-12650H
GPU	Integrated Intel UHD Graphics
RAM	24 GB
Internal Storage	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)
Weight	0.93 lbs (0.42 kg)
WiFi	Wi-Fi 6 (802.11ax)
Bluetooth	Bluetooth 5.2
Ethernet	1 Ethernet port at 1 Gbps
HDMI	2 Full-Size HDMI Ports
DisplayPort	No DisplayPort
VGA	No VGA Ports
USB Ports	2 USB 2.0, 2 USB 3, 1 USB-C (1 USB4) The USB-C port supports USB4, Power, and DisplayPort
Thunderbolt Ports	No
OCuLink	No
Internal SATA Ports	No SATA ports
Card Reader	No Card Reader
Headphone Jack	combo
Fanless	No
VESA Mount	Yes
In the Box	GMKtec Nucbox K3 pro Intel core i7-12650H Mini PC, Power Adapter, VESA Mount with Screws, HDMI Cable, User Manual
Expandability	Supports up to 2TB M.2 2280 SSD, memory and WiFi chip are soldered on, no further storage expansion

A Metal Box With USB4 Up Front and One M.2 Slot Inside

The K3 Pro is a small metal-bodied box (4.84 x 4.40 x 1.7 inches, under a pound) with a textured plastic top and bottom. Robtech notes that the exterior is identical to the AMD Ryzen-based NucBox K2, and Team Pandory’s unboxing shows GMKtec bundles a Hunt Key 120W power adapter (19V, 6.32A), a VESA mount, an HDMI cable, and a manual.

The front has a headphone jack, a USB4 Type-C port, and two 5Gbps USB-A ports; the back adds a DC barrel jack, two HDMI 2.0 outputs, two USB 2.0 ports, a Gigabit Ethernet jack, and a Kensington lock, plus a pinhole BIOS reset. Both reviewers identified the wired network port as Gigabit (1GbE), not 2.5GbE. Wireless is Wi-Fi 6 (Team Pandory’s teardown shows an Intel AX201 module) with Bluetooth 5.2.

Inside, there is a single M.2 slot that the spec sheet lists as Gen 4 capable, though GMKtec shipped a Gen 3 drive (a 1TB Lexar 610 Pro in both review units). There is no room for a second NVMe and no 2.5-inch bay; Team Pandory said they “would have loved another” M.2 slot. The RAM and Wi-Fi card are soldered, so storage is the only upgrade you can make.

Benchmarks Put It Close to a Core i5-12500H

Robtech ran the i7-12650H at its 45W power limit and it landed near the top of his single-core Cinebench chart. In multi-core it trailed AMD parts and sat behind the same 12500H by roughly 11 percent at default settings. Enabling the BIOS “game mode,” which raises the power and fan speed, recovered some of that, around a 16 percent multi-core improvement, at the cost of noise. He also noted that Intel’s QuickSync hardware encoder made the machine “pretty responsive when scrubbing across the timeline” in a 4K editing project at half resolution. Team Pandory reached the same practical verdict, finding Office, Photoshop, and a digital audio workstation (recording vocals and guitar in Reaper, then editing the video in DaVinci Resolve on the same box) all ran comfortably.

The integrated graphics are the limit. Team Pandory said “it’s going to be interesting to see if 64 EUs is going to be enough to run the latest games.” Robtech found that “it’s not powerful enough to handle the latest game title releases, even at the lowest settings.” Esports titles are fine (League of Legends ran at a high frame rate), but newer games need an external GPU.

Emulation Holds Up and USB4 Opens the eGPU Path

Team Pandory found Doom and Doom Eternal playable, dropped CS:GO to 720p for smoothness, and “jump straight into the deep end with PlayStation 2,” which ran fine before upscaling. PS2, GameCube (F-Zero GX), and Wii U emulation held up; PlayStation 3 was mixed and slow depending on the game. Robtech’s comparison data showed integrated graphics trailing Ryzen mini PCs in modern titles, though the K3 Pro matched the AMD K2 in some emulation tests.

The USB4 port covers the cases integrated graphics cannot. Robtech ran Forza Horizon at 4K with an external RTX 3070 attached, noting that “the USB 4 port supports a Thunderbolt eGPU with 40 gigabits per second bandwidth.”

The CPU Peaks at 93C and Game Mode Throttles

Balance mode ships as the default because game mode brought thermal throttling and a fan Robtech called “a bit too loud”; he measured the CPU peaking at 93C under load in both modes. The M.2 slot has no dedicated cooling, so the drive runs warm, though Robtech’s Lexar unit did not thermal throttle in his tests. At idle the machine pulled about 12W, with game mode adding roughly 4W at the top end. Team Pandory described the result as “a nice and snappy Mini PC” that stays quiet in normal use thanks to a fan that is large for the case.

A Quiet Intel Box for Editing and Music Work

Team Pandory said “we wouldn’t say it’s one for the gamers; it’s definitely a candidate for someone who wants to make a bit of music,” and called it a tidy machine for an office. Robtech called it a good Intel mini PC option, especially for video editing, while pointing buyers who care about gaming toward the AMD-based K2 instead. The K3 Pro makes most sense for someone who wants a quiet, compact Intel box for productivity, QuickSync-accelerated editing, and emulation, with USB4 as the upgrade path when integrated graphics fall short. Skip it if you need a second drive or upgradeable memory. For a side-by-side with other models, use the Mini PC Comparison Chart.