The GMKtec NucBox K16 follows a Micro-ATX form factor and occupies a total volume of 665.112 cm³, with dimensions measuring 111 mm wide, 107 mm thick, and 56 mm tall. Storage is handled by a 512GB NVMe SSD, offering faster data access compared to traditional SATA-based drives thanks to its NVMe interface.
The processor runs 8 cores at a base speed of 3.2 GHz, boosting up to a turbo clock speed of 4.75 GHz, and supports multithreading for a total of 16 threads. It carries a TDP of 50W and includes integrated graphics, with a maximum operating temperature of 95 °C. Cache is distributed across three levels — 512 KB of L1, 4 MB of L2 (at 0.5 MB per core), and 16 MB of L3 (at 2 MB per core) — while the chip supports 64-bit computing and uses a clock multiplier of 32, though the multiplier is locked and cannot be adjusted for overclocking.
The integrated GPU runs at a base clock of 2000 MHz with a turbo of 2200 MHz, delivering 3.379 TFLOPS of floating-point performance from its 768 shading units, 48 texture mapping units, and 32 render output units — producing a texture rate of 105.6 GTexels/s and a pixel rate of 70.4 GPixel/s. Built on a 6 nm process with 13,100 million transistors, it supports ray tracing, DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 2, while also offering double precision floating point capability; DLSS, however, is not supported. The GPU connects via PCIe 4, supports up to 4 displays simultaneously through its multi-display technology, and does not include LHR restrictions.
The GMKtec NucBox K16 is equipped with 32GB of DDR5 RAM running at a speed of 6400 MHz, providing a solid memory configuration for handling demanding workloads and multitasking within its compact form factor.
Wireless connectivity is covered by Wi-Fi 6E (802.11ax) — with backward compatibility down to Wi-Fi 4 — alongside Bluetooth 5.2. On the wired side, the device includes four USB 3.2 Gen 2 Type-A ports, one USB 4 40Gbps port, and one Thunderbolt 4 port, while USB 2.0, USB 3.2 Gen 1, and other USB-C variants are absent. Display output is handled through one HDMI 2.1 port and one DisplayPort, and network connectivity is supported by dual RJ45 ports. A 3.5 mm headset jack is present, though there is no VGA connector or S/PDIF output.
In benchmark testing, the processor achieves a PassMark multi-threaded score of 22,707 and a single-threaded score of 3,268, climbing slightly to 23,708 under overclocked conditions. Geekbench 6 results come in at 8,779 for multi-core and 1,904 for single-core performance. Cinebench R20 records a multi-threaded result of 5,420 alongside a single-threaded score of 604.
The Radeon 680M GPU, based on the RDNA 2.0 architecture, features 12 execution units and supports stereoscopic 3D, though XeSS (XMX) is not available. Memory can be configured up to a maximum of 64GB across 2 channels, with a top RAM speed of 6400 MHz, and the system supports ECC memory; there is no external memory slot, and flash storage is not used. The CPU is classified as a laptop-type processor and supports a range of instruction sets including MMX, AES, AVX, AVX2, FMA3, F16C, SSE 4.1, and SSE 4.2, along with an NX bit for hardware-level security. The unit does not use big.LITTLE technology or air-water cooling, and comes with a 1-year warranty.
