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GMKtec

GMKtec M8 Gaming Mini PC Ryzen 5 PRO 6650H

  • AMD Ryzen 5 PRO 6650H, 6 cores, up to 4.5GHz
  • 16GB LPDDR5-6400 onboard, not replaceable
  • 1TB SSD, two M.2 PCIe 4.0 slots up to 16TB
  • USB4 40Gbps and **OCuLink PCIe 4.0 x4**
  • Dual 2.5GbE, WiFi 6E, Bluetooth 5.2
  • Three displays: HDMI 2.0, DisplayPort 1.4, USB4

Updated 25 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A compact, well-connected mini PC with a six-core Ryzen chip, dual fast Ethernet and OCuLink expansion for work, home labs and light gaming. Memory is soldered and cannot be upgraded.

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ASIN: B0GWTQR2KMModel: M8Category: Mini Desktop Computers

Sizes Available

M6U R5 7640HS 16GB+1TBM7U R7 Pro 6850U 16GB+512GBM8 R5 PRO 6650H 16GB+1TBK11 R9 8945HS 32GB+512GBK11 R9 8945HS 16GB+1TBK12 R7 H 255 32GB+1TB

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Overview

A six-core Ryzen PRO chip cooled by dual fans powers this GMKtec mini PC, with three BIOS power modes to trade noise for speed. Fast USB, OCuLink and two quick Ethernet ports open it up to external GPUs, fast storage and network projects.

Unusual expansion for its size, including OCuLink and dual fast Ethernet, suits tinkerers and small servers as well as desks. Memory is fixed, so the configuration you buy is the one you keep.

Who it's for

Home offices, NAS and router projects, multi-monitor desks and light gaming. Heavy gamers will outgrow integrated graphics.

Pros and cons

Pros
  • Dual 2.5GbE networking
  • USB4 and OCuLink expansion
  • Three display outputs
  • Room for two more SSDs
Cons
  • Memory not user-replaceable
  • OCuLink not hot-swappable
  • Integrated graphics only

Performance notes

BIOS power modes cap the processor's wattage, which sets how loud the fans run versus how fast it works. Integrated graphics run mainstream games at modest settings, while OCuLink opens a path to external PCIe hardware.

Specifications

BrandGMKtec
ModelM8
Dimensions & fit
Item weight1.08 lb
Item dimensions4.21 x 4.37 x 2.48 inches
Capacity & performance
Memory Storage Capacity1TB M.2 2280 PCIe 3.0 SSD
CPU Model Speed Maximum4.5 GHz
Video OutputHDMI 2.0, DisplayPort 1.4, USB4
Power & efficiency
Power modesSilent 28W, Balanced 35W, Performance 40W
Compatibility & installation
RAM Memory Installed16GB LPDDR5-6400, onboard
WirelessWiFi 6E, Bluetooth 5.2
Warranty & support
Warranty Description1-year limited warranty
Other details
Graphics CoprocessorAMD Radeon 660M, up to 1,900MHz
Processor Count6 cores, 12 threads
Cache3MB L2, 16MB L3
Storage expansionTwo M.2 2280 PCIe 4.0 x4 slots, up to 16TB total
PortsUSB4 (40Gbps, 100W PD in), OCuLink PCIe 4.0 x4, 2 front + 1 rear USB 3.2 Gen 2, 1 rear USB 2.0, 3.5mm audio
CPU Model NumberAMD Ryzen 5 PRO 6650H
BuiltIn MediaMini PC, 100W DC adapter, HDMI cable, documentation, warranty card
EthernetDual 2.5GbE

Frequently asked questions

How big is the GMKtec M8?

It measures 4.21 x 4.37 x 2.48 inches and weighs about 1.08 lb.

Can I upgrade the RAM in the GMKtec M8?

No. The 16GB LPDDR5 is onboard and not user-replaceable. Storage can be expanded through two M.2 slots.

Can I plug in an OCuLink device while the GMKtec M8 is on?

No. OCuLink is not hot-swappable; shut down the M8 before connecting or removing a device.

How many monitors can the GMKtec M8 run?

Up to three, through HDMI 2.0, DisplayPort 1.4 and USB4.