New
GMKtec NucBox K12
The 8-core Ryzen 7 H 255 and Radeon 780M iGPU deliver strong AVX512-capable compute and quad 4K/8K display support in a 0.82kg chassis. An Oculink port provides PCIe 4.0 x4 bandwidth for eGPU setups, while dual 2.5GbE LAN and three M.2 slots offer unusual server-grade expandability for a mini PC. This system is best for developers and home-lab enthusiasts who need a compact, multi-display workstation with high-speed networking and storage flexibility.
CPU AMD Ryzen 7 H 255
RAM 32 GB
Storage 1 TB
GPU AMD Radeon 780M
form factor mini
psu w 120
OS OS Pro
72 Overall Score
Price £0
Snapshot
Pros & Cons
Pros
- Strong social proof (96th percentile) 96th
- Strong port (88th percentile) 88th
- Strong ram (83th percentile) 83th
- Strong storage (73th percentile) 73th
Cons
- Below average reliability (11th percentile)
What owners think
The proof
Performance
Specifications
Full Specifications
Processor
| CPU | AMD Ryzen 7 H 255 |
| Cores | 8 |
| Frequency | 4.9 GHz |
| L3 Cache | 16 MB |
Graphics
| GPU | AMD Radeon 780M |
| Type | integrated |
| VRAM Type | Shared |
Memory & Storage
| RAM | 32 GB |
| RAM Generation | DDR5 |
| Storage | 1 TB |
| Storage Type | NVMe SSD |
Build
| Form Factor | mini |
| PSU | 120 |
| Weight | 0.8 kg / 1.8 lbs |
Connectivity
| USB-C Ports | 2 |
| USB Ports | 5 |
| Thunderbolt | USB4.0 x 1 |
| HDMI | 1x HDMI 2.1 |
| DisplayPort | 1x DisplayPort 1.4 |
| Wi-Fi | Wi-Fi 6E |
| Bluetooth | Bluetooth 5.2 |
| Ethernet | 2.5GbE |
System
| OS | OS Pro |
vs Competition
| Spec | GMKtec NucBox K12 | Lenovo Legion 34IAS10 | HP Omen 45L | ASUS Republic of Gamers GM700TZ-BS978 | MSI EdgeXpert EdgeXpert-11SUS | CLX SET TGMSETRTU5204BM |
|---|---|---|---|---|---|---|
| CPU | AMD Ryzen 7 H 255 | Intel Core Ultra 9 | Intel Core Ultra 9 285K | AMD Ryzen 9 9950X | NVIDIA GB | Intel Core i9 14900KF |
| RAM (GB) | 32 | 64 | 64 | 64 | 128 | 64 |
| Storage (GB) | 1024 | 3072 | 8096 | 2048 | 4000 | 8000 |
| GPU | AMD Radeon 780M | NVIDIA GeForce RTX 5080 | NVIDIA GeForce RTX 5080 | AMD Radeon RX 9070 XT | NVIDIA Blackwell Architecture | NVIDIA GeForce RTX 5070 |
| Form Factor | mini | mid-tower | mid-tower | Desktop | mini | mid-tower |
| Psu W | 120 | 1200 | - | 850 | 240 | 850 |
| OS | OS Pro | Windows 11 Pro | Windows 11 Home | Windows 11 Home | NVIDIA DGX OS | Windows 11 Home |
| Compare | Compare | Compare | Compare | Compare |
| Product | Cpu | Gpu | Ram | Port | Storage | Reliability | Social Proof |
|---|---|---|---|---|---|---|---|
| GMKtec NucBox K12 | 66.6 | 53.2 | 82.7 | 87.6 | 72.6 | 11.3 | 96.2 |
| Lenovo Legion 34IAS10 Compare | 97.8 | 87.3 | 96.6 | 91.8 | 96.5 | 70 | 84.4 |
| HP Omen 45L Compare | 97.8 | 87.3 | 95.5 | 98.1 | 99.4 | 70 | 86.8 |
| ASUS Republic of Gamers GM700TZ-BS978 Compare | 98.8 | 77.2 | 94.3 | 97.4 | 91.4 | 37 | 74.8 |
| MSI EdgeXpert EdgeXpert-11SUS Compare | 99.7 | 94.8 | 98.8 | 87.2 | 97.9 | 37 | 83 |
| CLX SET TGMSETRTU5204BM Compare | 94.3 | 80.9 | 96.6 | 86.4 | 99.2 | 11.3 | 95.5 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
