GMKtec M8

AMD’s Ryzen 5 PRO 6650H gives the GMKtec M8 6 cores and 12 threads, enough for office applications, multimedia playback, and light content creation. It also carries an OCuLink port for external graphics, alongside dual 2.5GbE, USB4, and WiFi 6E. All of that sits in a case small enough to share a desk with a monitor, at around $360. That points it at a home office or a small business trading a tower for desk space.

Wide connectivity and a fixed 16GB ceiling

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GMKtec M8 Comparison Chart

	GMKtec M8	GMKtec M8
Price	List Price: $359.99 Amazon Prices: Loading prices...	List Price: $389.99 Amazon Prices: Loading prices...
Version	16GB/512GB	16GB/1TB
Performance Rating	4.3	4.3
Operating System	Windows 11 Pro	Windows 11 Pro
Processor	Hexa-core 3.30 Ghz (max 4.50 Ghz) AMD Ryzen 5 PRO 6650H	Hexa-core 3.30 Ghz (max 4.50 Ghz) AMD Ryzen 5 PRO 6650H
GPU	Integrated AMD Radeon 660M	Integrated AMD Radeon 660M
RAM	16 GB	16 GB
Internal Storage	512 GB	1 TB
Dimensions width x length x thickness	4.37 x 4.21 x 2.48 inches (111 x 106.93 x 62.99 mm)	4.37 x 4.21 x 2.48 inches (111 x 106.93 x 62.99 mm)
Weight	1.09 lbs (0.5 kg)	1.09 lbs (0.5 kg)
WiFi	Wi-Fi 6E (802.11ax)	Wi-Fi 6E (802.11ax)
Bluetooth	Bluetooth 5.2	Bluetooth 5.2
Ethernet	2 Ethernet ports at 2.5 Gbps	2 Ethernet ports at 2.5 Gbps
HDMI	1 HDMI Port	1 HDMI Port
DisplayPort	1 DisplayPort	1 DisplayPort
VGA	No VGA Ports	No VGA Ports
USB Ports	1 USB 2.0, 3 USB 3, 1 USB-C (1 USB4)	1 USB 2.0, 3 USB 3, 1 USB-C (1 USB4)
Thunderbolt Ports	No	No
OCuLink	PCIe 4.0 x4 for eGPU	PCIe 4.0 x4 for eGPU
Internal SATA Ports	No SATA ports	No SATA ports
Card Reader	No Card Reader	No Card Reader
Headphone Jack	combo	combo
Fanless	No	No
VESA Mount	Yes	Yes
In the Box	Mini PC, power adapter (100W), HDMI cable, user manual	Mini PC, power adapter (100W), HDMI cable, user manual
Expandability	RAM is soldered LPDDR5-6400 (NOT upgradeable). Storage: 2x M.2 2280 slots (1x PCIe 3.0, 1x PCIe 4.0). Removable WLAN module.	RAM is soldered LPDDR5-6400 (NOT upgradeable). Storage: 2x M.2 2280 slots (1x PCIe 3.0, 1x PCIe 4.0). Removable WLAN module.

The ports outrun the graphics

The chassis borrows design cues from GMKtec’s EVO-X1 series, with a metal shell in place of plastic. At roughly 4.4 by 4.2 by 2.5 inches and just over a pound, it takes up little desk space and keeps every port within reach. The front panel houses USB4, two USB 3.2 Gen2 ports, the OCuLink connector, and a 3.5mm audio jack; the rear carries HDMI 2.0, DisplayPort 1.4, another USB 3.2 port, a USB 2.0 port, and dual 2.5GbE LAN ports.

The Ryzen 5 PRO 6650H scores around 18,000 on PassMark’s CPU Mark, with Cinebench R23 multi-thread results around 9,500 and Geekbench 6 multi-core near 7,800. That covers Microsoft Office, web browsing, 4K video playback, and basic video editing in a tool like CapCut. The Radeon 660M integrated graphics run older titles and emulation up to PS2 and some Wii U games at playable framerates, while modern AAA titles struggle above low settings.

The OCuLink connector is a PCIe 4.0 x4 interface wired for an external GPU enclosure, so a desktop card can pick up the work the Radeon 660M cannot. The dual 2.5GbE ports delivered their rated speeds in testing, which puts NAS duty and network-heavy workflows in reach. WiFi 6E ran past gigabit speeds in range testing, Bluetooth 5.2 handles peripherals, and the USB4 port carries 40Gbps with DisplayPort alt mode and power delivery, though some reviewers noted compatibility quirks with certain USB-C monitors.

Reviewer Insights

NotebookCheck’s Perspective

NotebookCheck awarded the GMKtec M8 a 71% score, positioning it as an “average” but well-balanced option. Their review praised the relatively cool operating temperatures and easy serviceability for storage upgrades. They noted that “the NucBox M8 isn’t trying to be the fastest mini PC” but rather targets accessibility through competitive pricing while maintaining adequate capability for standard business applications. The OCuLink support was highlighted as uncommon in this price bracket. Their main criticisms focused on the fan’s pulsing behavior under load and the lack of an integrated NPU for AI workloads.

TechRadar’s Perspective

TechRadar awarded 4.5 out of 5 stars and declared themselves “really surprised by just how powerful the GMKtec NucBox M8 is.” The reviewer found it “fast and capable for all Microsoft applications, such as Word, Excel, and PowerPoint” and praised the ultra-compact form factor. For light multimedia editing, the reviewer noted it handled “mobile phone video editing in CapCut without issue,” though Premiere Pro work with mirrorless camera footage struggled due to limited GPU power. They emphasized the OCuLink option and substantial storage upgrade potential as key differentiators.

Lon Seidman’s Perspective

Lon Seidman concluded that “you give up upgradeable memory, but for a reasonable price you get unusually fast I/O for the class.” His testing confirmed smooth 4K/60 web browsing with only occasional, barely perceptible dropped frames in YouTube playback. Ubuntu detected all of its hardware. He noted the fan becomes audible in performance mode but remained “not among the loudest tested.” Gaming tests showed Cyberpunk 2077 managed around 30 fps at 1080p low settings, while PS2 emulation ran at full speed.

Customer Reviews

Across 245 ratings on Amazon, the GMKtec M8 averages 4.1 stars. About two thirds of buyers leave five stars and 13 percent leave one. David M., a verified buyer running it as his main machine for six months, wrote that it handles a 36 inch monitor “without any hiccups” and praised tech support as “super responsive,” while Julie M. (also a verified purchase) reported it arrived with an activated Windows 11 Pro and ran solid for her, with no blue screens and clean 4K OBS streaming.

Heat and reliability drive the lower ratings. Fuzzy nuts, a verified buyer who gave it three stars, noted that “if you put it into performance mode it runs uncomfortably Hot for me. 90° + c is a little too hot for my comfort and then the nvme starts throttling,” and recommended staying in balanced mode. Verified buyer Kevin Paul docked a star because the unit “became inoperable within a week” after a Windows update, though he recovered it with GMKtec’s help, and a one-star verified reviewer, selective 2011, wrote: “This piece of crap lasted six months and died with no warning.”

Read more owner reviews on Amazon.

Choose it for office work and add an eGPU for anything more

The two configurations differ only in storage, 512GB at $359.99 and 1TB at $389.99, and both ship with the same 16GB of memory. Two M.2 2280 slots sit inside either one, so the cheaper unit can reach the larger capacity later with a drive of your choosing. At around $360 for the entry build, this is a compact desktop for documents and browsers that keeps a graphics upgrade path open.

Shoppers who want memory they can swap, or more graphics power without an enclosure, will do better with the GMKtec G3 Plus or the Beelink SER5 Pro. Starry Hope’s Mini PC Comparison Chart lines up the specs across the catalog.

Frequently Asked Questions