General info:
| SSD storage capacity |
2000GB |
| form factor |
Mini-ITX |
| Is an NVMe SSD |
✓ |
| thickness |
129 mm |
| height |
48 mm |
| width |
127 mm |
| volume |
786.384 cm³ |
The GMKtec NucBox K9 uses a Mini-ITX form factor, measuring 129 mm in thickness, 127 mm in width, and 48 mm in height, which adds up to a total volume of just 786.384 cm³ — a notably compact chassis for a desktop unit. Storage comes in the form of a 2TB NVMe SSD, providing fast flash-based access within that small enclosure.
CPU:
| Thermal Design Power (TDP) |
28W |
| CPU speed |
4 x 1.2 & 8 x 0.7 GHz |
| turbo clock speed |
4.5GHz |
| CPU threads |
18 threads |
| Has integrated graphics |
✓ |
| uses multithreading |
✓ |
| L3 cache |
18 MB |
| clock multiplier |
36 |
| Has an unlocked multiplier |
✕ |
| Supports 64-bit |
✓ |
| CPU temperature |
110 °C |
The processor uses a hybrid layout with four cores running at 1.2 GHz and eight cores at 0.7 GHz, capable of reaching a turbo clock speed of 4.5 GHz across its 18 threads via multithreading. It operates within a 28W TDP envelope and is rated to a maximum temperature of 110 °C, with a fixed clock multiplier of 36 that leaves no headroom for manual frequency adjustments. The chip carries 18 MB of L3 cache, supports 64-bit processing, and integrates graphics on-die, covering all basic graphics needs without a separate card.
Graphics card:
| GPU clock speed |
300 MHz |
| GPU turbo |
2200 MHz |
| PCI Express (PCIe) version |
5 |
| texture mapping units (TMUs) |
48 |
| shading units |
768 |
| render output units (ROPs) |
24 |
| DirectX version |
DirectX 12 |
| OpenGL version |
4.6 |
| OpenCL version |
3 |
| semiconductor size |
7 nm |
| supported displays |
4 |
The integrated GPU has a base clock of 300 MHz and scales up to a turbo of 2200 MHz over PCIe 5, fabricated on a 7 nm process. Its rendering pipeline consists of 768 shading units, 48 texture mapping units, and 24 render output units, and it supports up to four simultaneous display outputs. API coverage includes DirectX 12, OpenGL 4.6, and OpenCL 3, making it capable of handling general-purpose graphics and compute tasks within an integrated solution.
Memory:
| RAM |
32GB |
| RAM speed |
5600 MHz |
| DDR memory version |
5 |
The GMKtec NucBox K9 ships with 32GB of DDR5 RAM running at 5600 MHz, delivering a current-generation memory configuration that supports smooth multitasking and responsive performance across everyday and moderately demanding workloads.
Connectivity:
| Wi-Fi version |
Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n) |
| supports Wi-Fi |
✓ |
| Bluetooth version |
5.2 |
| USB 2.0 ports |
0 |
| USB 3.2 Gen 2 ports (USB-A) |
4 |
| USB 3.2 Gen 1 ports (USB-A) |
0 |
| USB 3.2 Gen 2 ports (USB-C) |
0 |
| USB 4 40Gbps ports |
1 |
| USB 4 20Gbps ports |
0 |
| USB 3.2 Gen 2x2 ports |
0 |
| USB 3.2 Gen 1 ports (USB-C) |
0 |
| Thunderbolt 4 ports |
0 |
| Thunderbolt 3 ports |
0 |
| DisplayPort outputs |
1 |
| HDMI version |
HDMI 2.0 |
| HDMI ports |
1 |
| RJ45 ports |
2 |
| has a socket for a 3.5 mm audio jack |
✓ |
| has a VGA connector |
✕ |
| Has S/PDIF Out port |
✕ |
Wireless connectivity covers Wi-Fi 6, Wi-Fi 5, and Wi-Fi 4, paired with Bluetooth 5.2. The wired port selection includes dual RJ45 Ethernet jacks, one HDMI 2.0 output, one DisplayPort, and a 3.5 mm headset jack, with no VGA or S/PDIF connections present. On the USB side, there are four USB 3.2 Gen 2 Type-A ports and one USB 4 40Gbps port, while USB 2.0, USB-C in any form, Thunderbolt 3, and Thunderbolt 4 are all absent.
Benchmarks:
| PassMark result |
21104 |
| PassMark result (single) |
3400 |
| Geekbench 6 result (multi) |
10239 |
| Geekbench 6 result (single) |
2256 |
| PassMark result (overclocked) |
22756 |
In PassMark testing, the GMKtec NucBox K9 achieves a multi-threaded score of 21,104 under standard conditions, rising to 22,756 when overclocked, indicating a modest but measurable gain from increased clock speeds. The single-threaded PassMark result sits at 3,400, while Geekbench 6 records a multi-core score of 10,239 and a single-core score of 2,256, providing a consistent cross-suite picture of the processor's output across both parallel and sequential workloads.
Miscellaneous:
| maximum memory amount |
96GB |
| has an external memory slot |
✕ |
| GPU execution units |
7 |
| Type |
Laptop |
| instruction sets |
MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2 |
| Has NX bit |
✓ |
| Supports ECC memory |
✕ |
| memory channels |
2 |
| RAM speed (max) |
5600 MHz |
| Uses big.LITTLE technology |
✓ |
| Uses flash storage |
✓ |
The laptop-class processor uses big.LITTLE technology for its hybrid core arrangement and includes NX bit support alongside instruction set coverage spanning MMX, AES, AVX, AVX2, FMA3, F16C, SSE 4.1, and SSE 4.2. The integrated GPU carries 7 execution units, and system memory can be expanded up to 96GB across two channels, with a maximum supported RAM speed of 5600 MHz. ECC memory is not supported, and there is no external memory card slot available, though the system does use flash-based storage for its primary drive.
