The GMKtec NucBox K12 includes a 1TB NVMe SSD, offering fast flash-based storage through the NVMe interface for quicker data access compared to traditional SATA drives.
The processor runs 8 cores at a base clock of 3.8 GHz, with a turbo frequency reaching 4.9 GHz, and handles 16 threads through multithreading support. It carries a 45W TDP and a maximum rated temperature of 100 °C, with a fixed clock multiplier of 38 that cannot be unlocked. Cache is distributed across 8 MB of L2 (1 MB per core) and 16 MB of L3 (2 MB per core), and the CPU fully supports 64-bit computing. Integrated graphics are also included on-die, rounding out the processor's feature set.
The integrated GPU operates at a base clock of 800 MHz, boosting up to 2600 MHz under load, and is built on a 4 nm process node. It features 768 shading units, 48 texture mapping units, and 32 render output units, with PCIe 4 connectivity. API support covers DirectX 12, OpenGL 4.6, and OpenCL 2.1, making it compatible with a broad range of graphics workloads. The GPU can drive up to four displays simultaneously.
The system is equipped with 64GB of DDR5 RAM, running at a clock speed of 5600 MHz, providing a substantial amount of memory for multitasking and memory-intensive workloads.
Wireless connectivity is handled by Wi-Fi 6E (with backward compatibility down to Wi-Fi 4) and Bluetooth 5.2. The wired port selection includes three USB 3.2 Gen 2 Type-A ports, two USB 2.0 ports, one USB 3.2 Gen 2 Type-C port, one USB 4 40Gbps port, and a Thunderbolt 4 port; there are no USB 3.2 Gen 1, Gen 2x2, USB 4 20Gbps, or Thunderbolt 3 ports. Display output is provided through one HDMI 2.1 port and one DisplayPort output, while a single RJ45 jack handles wired networking. Audio connectivity includes a 3.5 mm headset jack, though there is no VGA connector or S/PDIF output.
In PassMark benchmarking, the processor scores 28,797 in the multi-threaded test and 3,556 in the single-threaded test, reflecting its multi-core throughput capacity alongside its per-core processing capability.
The system supports a maximum of 96GB of RAM across two memory channels, with a peak RAM speed of 7500 MHz, though it does not support ECC memory or external memory slots. Storage uses flash-based technology, and the integrated GPU is the Radeon 780M. The CPU is classified for both laptop and desktop form factors and does not use big.LITTLE architecture. Supported instruction sets include MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2, and the processor includes NX bit support for hardware-level memory protection. The unit ships with a one-year warranty.
