GMKtec

NucBox M3 Plus

CPU i9 12900HK

GPU Iris Xe 96EU

Max RAM 64GB

Drives 2

From $130

Seller Amazon

The GMKtec NucBox M3 Plus is a mini PC powered by the Intel i9 12900HK (12th gen). It features 6 performance cores and 20 threads and a soldered CPU. Graphics are handled by the integrated Intel Iris Xe 96EU. Supports up to 64GB of RAM across 2 slots at 3200 MT/s. Storage capacity of up to 2 drives including 2 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

CPUi9 12900HK

Generation12th

P-Cores6

Threads20

Single-core77

Multi-core41

Socket0

GPU

GPUIris Xe 96EU

Discrete GPUNo

Integrated GPUYes

eGPU supportNo

RAM

Max RAM64GB

RAM slots2

Max speed3200 MT/s

ECC supportNo

Storage

Max drives2

NVMe slots2

Gen4 x41

Gen3 x41

SD cardNo

Ports & Connectivity

Max displays3

Network

Max Ethernet1G

2.5G ports1

vProN

Physical

Dimensions114 × 106 × 42 mm

Volume0.51L

Fan size80mm

Warranty1 yr

Power

TDP45W

PSU typeBrick

PSU120W

Pricing

Minimum$440

Barebone est.$130

32GB / 1TB$440

Additional

Recommended for productivity, software development, multitasking, media use, light gaming, larger multitasking workloads, and very small desk setups. Consider GMKtec NucBox M3 Plus if you want a ultra-compact mini PC built around its listed Intel i9 12900HK processor and Intel Iris Xe 96EU 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 Plus features Intel i9 12900HK with Intel Iris Xe 96EU integrated GPU, offering 1× 2.5G Ethernet. CPU details include 12th CPU generation, 6 performance cores, and 20 threads. Memory support includes up to 64GB RAM across 2 slots at 3200 MT/s. Storage support includes up to 2 storage drives including 2 NVMe SSD slots and 1× PCIe Gen4 x4 NVMe and 1× PCIe Gen3 x4 NVMe. 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 80 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 20-Nov-2024.

Based on its overall score of 270.1, GMKtec NucBox M3 Plus is positioned as a solid midrange mini PC entry in this dataset; compare it against alternatives by CPU class, GPU type, memory ceiling, storage expansion, LAN, and port selection.

Verdict

Best for

office productivity, software development, 4K media playback, multitasking, developer workloads.

Avoid if

you need modern AAA gaming or sustained GPU rendering; you need a high-speed external-GPU or advanced docking path; you need multiple high-speed LAN ports for router or NAS duty.

Alternatives

Geekom A6 — better value at comparable performance
GMKtec/Morefine Nucbox K11 4090M — higher performance ceiling
CWWK/Topton 1245U 8x2.5G — stronger wired networking for homelab use

Review

The GMKtec NucBox M3 Plus is a ultra-compact mini PC built around Intel i9 12900HK and Intel Iris Xe 96EU integrated graphics. With a listed price around $130, it is aimed at buyers looking for office productivity, software development, 4K media playback, multitasking, developer workloads. The core spec sheet is solid for its class: up to 64GB RAM across 2 slots at 3200 MT/s, up to 2 drives, including 2 NVMe slots (1 PCIe 4.0 x4 NVMe, 1 PCIe 3.0 x4 NVMe), 1×2.5GbE, and basic display and USB connectivity. The 270.1 overall score positions it as a practical midrange choice, so the appeal depends heavily on street price and the exact configuration. The listed release date is 20-Nov-2024. The main reason to pause is fit: avoid it if you need modern AAA gaming or sustained GPU rendering; you need a high-speed external-GPU or advanced docking path; you need multiple high-speed LAN ports for router or NAS duty. Overall, the GMKtec NucBox M3 Plus makes the most sense when its CPU/GPU balance, port selection, and expansion profile match your workload; otherwise, compare it against similarly priced mini PCs with better networking, quieter cooling, or stronger upgrade paths.