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GMKtec NucBox M8 is a newer mini PC with an older AMD Zen 3+ processor

The M8 sports GMK's newer chassis design but with an older AMD CPU to keep prices low (Image source: Notebookcheck)
The M8 sports GMK's newer chassis design but with an older AMD CPU to keep prices low (Image source: Notebookcheck)
If you don't need intensive graphics or need AI acceleration for your office or business, then the NucBox M8 can save you a lot of cash.

The GMK NucBox M8 is now shipping starting at $360 for the 16 GB RAM and 512 GB SSD configuration. Its Ryzen 5 Pro 6650H CPU keeps prices low in contrast to most other mini PCs where prices are trending toward four digits.

Despite the nearly four-year old CPU, the M8 manages to look sleek and modern by utilizing the same chassis design as the recent GMK EVO-X1 series. In essence, the manufacturer has swapped out the expensive Ryzen AI 9 Zen 5 CPU of the EVO-X1 for the more affordable Zen 3+ Ryzen 5 CPU in order to appeal to wider audiences who may not need all that horsepower in the first place. According to our review of the M8, the GMK mini PC outperforms the MSI Cubi NUC AI+ powered by the newer Lunar Lake-V CPU when it comes to raw multi-thread performance. Thus, for most basic office or retail scenarios, the M8 is "fast enough" especially for the price.

There are nonetheless drawbacks to the system due to the older CPU. Both performance-per-watt and graphics performance are behind more modern processors meaning that the M8 isn't as efficient as some mini PCs even if raw multi-thread performance can be decent. If you plan on using the system for even occasional 3D rendering or AI applications, then the M8 will be too basic for your needs.

Users can check out our full review on the GMK NucBox M8 for more benchmarks and comparisons.

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2025 12 > GMKtec NucBox M8 is a newer mini PC with an older AMD Zen 3+ processor
Allen Ngo, 2025-12-29 (Update: 2025-12-29)