GMKtec NucBox M3
GMKtec

NucBox M3

CPU i5 12450H
GPU Intel UHD Xe 48EU
Max RAM 64GB
Drives 2
From $265
Seller Amazon

The GMKtec NucBox M3 is a mini PC powered by the Intel i5 12450H (12th gen). It features 4 performance cores and 12 threads and a soldered CPU. Graphics are handled by the integrated Intel Intel UHD Xe 48EU. Supports up to 64GB of RAM across 2 slots at 3200 MT/s. Storage capacity of up to 2 drives including 1 NVMe. Networking features 1 Ethernet port (up to 2.5G). Dimensions: 114 × 106 × 42mm (0.51L). Uses a Brick PSU (120W), 45W TDP.

CPU & Performance

CPUi5 12450H
Generation12th
P-Cores4
Threads12
Single-core67
Multi-core25
Socket0

GPU

GPUIntel UHD Xe 48EU
Discrete GPUNo
Integrated GPUYes
eGPU supportNo

RAM

Max RAM64GB
RAM slots2
Max speed3200 MT/s
ECC supportNo

Storage

Max drives2
NVMe slots1
SD cardNo

Ports & Connectivity

Max displays3

Network

Max Ethernet1G
2.5G ports1
vProN

Physical

Dimensions114 × 106 × 42 mm
Volume0.51L
Fan size60mm
Warranty1 yr

Power

TDP45W
PSU typeBrick
PSU120W

Pricing

Minimum$400
Barebone est.$265
16GB / 512GB$400

Additional

Recommended for office work, web browsing, media playback, light home or business use, larger multitasking workloads, and very small desk setups. Consider GMKtec NucBox M3 if you want a ultra-compact mini PC built around its listed Intel i5 12450H processor and Intel Intel UHD Xe 48EU integrated GPU. It is less suitable for heavy gaming or GPU-accelerated workloads because no discrete or high-speed external GPU path is listed.

GMKtec NucBox M3 features Intel i5 12450H with Intel Intel UHD Xe 48EU integrated GPU, offering 1× 2.5G Ethernet. CPU details include 12th CPU generation, 4 performance cores, and 12 threads. Memory support includes up to 64GB RAM across 2 slots at 3200 MT/s. Storage support includes up to 2 storage drives including 1 NVMe SSD slot, 1× PCIe Gen3 x2 NVMe, and 1× M.2 SATA slot. Display support includes support for up to 3 displays. Networking includes 1× 2.5G Ethernet. Physical design includes a 114 × 106 × 42 mm chassis (0.51L). Cooling information lists 60 mm main fan. Power information lists Brick power supply rated at 120W and 45W TDP. Lifecycle information lists 1-year warranty and release date listed as 8-Oct-2023.

Based on its overall score of 204.9, GMKtec NucBox M3 is positioned as a mainstream mini PC entry in this dataset; compare it against alternatives by CPU class, GPU type, memory ceiling, storage expansion, LAN, and port selection.

Notes

Mar 23 2025: $270 to $236. Oct 28: NVMe port is PCIe x2 instead of x4

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