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GMKtec M8

GMKtecMini PC reference

GMKtec M8

GMKtec M8 combines AMD Ryzen 5 PRO 6650H with integrated Radeon 660M for office multitasking, development and media work. Gaming and GPU-accelerated applications depend on their settings and driver support; the graphics specification alone is not a measured performance result. Memory is fixed at purchase, so choose RAM capacity for the full intended lifespan. OCuLink allows a separate compatible external GPU dock; connect or disconnect it only with the PC powered off.

Processor
AMD Ryzen 5 PRO 6650H
Graphics
Radeon 660M
Memory
16 GB
Storage
512 GB
Configuration being compared16 GB RAM · 512 GB SSDNew
US stores · USD

Prices across stores

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View price history

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RetailerAvailabilityListed priceLast checkedRetailer website
Sold by GMKtec-OfficialAffiliate link
In stock$388.99Lowest checkedView at Newegg
In stock$389.99View at GMKtec
Not confirmedSee at storeCheck expiredView at Amazon

Availability reflects the latest store check. Shipping, tax, coupons and checkout totals are not included; confirm them at the store.

Specifications

Processor, graphics and installed memory/storage describe the selected configuration. Expansion limits and connectivity describe the model; optional hardware is identified separately. References are collected in About this data below.

Processor
AMD Ryzen 5 PRO 6650H
Graphics
Radeon 660M
Memory
16 GB
Storage
512 GB
Ports & displays
USB-A: 3 × USB 3.2 Gen2 (10Gbps) + 1 × USB 2.0; USB4: 1 × USB4 Full-Function Port (40Gbps / PD 100W / DisplayPort 1.4); HDMI: 1 × HDMI 2.0; DisplayPort: 1 × DisplayPort 1.4; OCulink: 1 × OCulink PCIe Gen4 ×4; Audio: 1 × 3.5mm CTIA Audio Jack; LAN: 2 × RJ45 2.5G Ethernet; Power: 1 × DC IN (5.5 / 2.5mm)
Ethernet, Wi-Fi & Bluetooth
Wi-Fi 6E (RZ616, up to 2.4Gbps); Bluetooth 5.2; Dual 2.5G Ethernet LAN (RTL8125BG) Link rates are theoretical, not measured throughput.
RAM & storage upgrades
On-board LPDDR5-6400 Memory; 16GB standard configuration; Non-upgradable design. 2 × M.2 2280 PCIe 4.0 ×4 SSD Slots; Supports up to 8TB per slot (Max 16TB); SATA SSD not supported
Power supply & power limits
Power supply / DC input rating: DC Power Adapter 20V / 5A, 100W. This is a supply rating, not measured wall-power consumption.
Dimensions & weight
107 × 111 × 63 mm; Approx. 590 g. Dimensions follow the manufacturer order; axes are not labeled.

What owners say

Three reviewers had the 16 GB / 512 GB version of this Ryzen 5 PRO 6650H box, and the lab that measured it found a cool machine with a restless fan. Under Prime95 the chip holds 3.4 GHz at 35 W and 69 °C, and the shell barely warms because it hardly touches the internals. But the fans pulse often, up to 38 dB(A) at light load in Balanced mode and 47 dB(A) at peak, although another reviewer calls it very quiet. Idle draw is 6.6 to 14.5 W and full load a steady 53 W, which the lab rates average performance per watt at best. The memory is 16 GB of soldered LPDDR5-6400, and every reviewer flags that it cannot be upgraded. The front USB4 port is sold with DisplayPort 1.4, but the lab could not get a picture from it even after driver updates, and 4K60 playback dropped frames. Four thumbscrews release the shell, then a screwdriver reaches two PCIe 4.0 M.2 slots without heat spreaders. There is no NPU; multi-core speed matches Intel's Core Ultra 7 258V while graphics trail it. It edits HD phone footage comfortably but struggled with 4K Premiere projects, and games need low settings. Reviewers disagree on whether it can be VESA-mounted.

For whom
A small, cool-running office PC on a budget, with room for two SSDs.
Not for
Anyone who will want more than 16 GB later, video from the front USB-C port, or quiet at light loads; and gaming.

Our own summary of 4 published sources, reviewed Sep 23, 2026. We have not tested this Mini PC ourselves; the sources are listed under About this data.

Performance

3 sourced resultsseconds

Same application version, scene, samples, resolution and CPU or GPU render backend.

Externally reported measurements. MiniPC.guru has not independently reproduced these tests.

326 secondsIndependent review

GMK NucBox M8 mini PC review: Small, professional, and affordable

By Allen Ngo · Notebookcheck

Source published
Dec 28, 2025
Test performed
Not reported by source
Added to MiniPC.guru
Sep 23, 2026
Source reviewed
Sep 23, 2026
Tested hardware
AMD Ryzen 5 PRO 6650H, 6 cores / 12 threads, 3.3-4.5 GHz, Rembrandt-H PRO (Zen 3+), 35 W PL2 and 35 W PL1 as printed in the specification table · AMD Radeon 660M, 1900 MHz, driver 32.0.21037.1004 (not used: this row renders on the processor) · 16 GB LPDDR5 at 6400 MT/s, soldered, dual-channel · not applicable: a CPU render does not read from disk while the measurement runs; the unit carried a 512 GB AirDisk APF 10-512G
Software / version / OS
Blender · 2.79 · Microsoft Windows 11 Pro
Power profile
Windows set to Performance mode by the reviewer; the system ships in the BIOS Balanced mode; 35 W PL1/PL2 per the specification table
Test conditions
BMW27 standard demo scene, CPU render backend as the table labels it (v2.79 BMW27 CPU). Samples and output resolution are those stored in the standard scene file

Editorial review checks the source and documentation; it does not certify the measurement or mean we tested the device ourselves.

560 secondsIndependent review

GMK NucBox M8 mini PC review: Small, professional, and affordable

By Allen Ngo · Notebookcheck

Source published
Dec 28, 2025
Test performed
Not reported by source
Added to MiniPC.guru
Sep 23, 2026
Source reviewed
Sep 23, 2026
Tested hardware
AMD Ryzen 5 PRO 6650H, 6 cores / 12 threads, 3.3-4.5 GHz, Rembrandt-H PRO (Zen 3+), 35 W PL2 and 35 W PL1 as printed in the specification table · AMD Radeon 660M, 1900 MHz, driver 32.0.21037.1004 (not used: this row renders on the processor) · 16 GB LPDDR5 at 6400 MT/s, soldered, dual-channel · not applicable: a CPU render does not read from disk while the measurement runs; the unit carried a 512 GB AirDisk APF 10-512G
Software / version / OS
Blender · 3.3 · Microsoft Windows 11 Pro
Power profile
The review says Windows was set to Performance mode before its benchmarks; the system ships in the BIOS Balanced mode; 35 W PL1/PL2 per the specification table
Test conditions
Classroom standard demo scene, CPU render backend as the table labels it (v3.3 Classroom CPU). Samples and output resolution are those stored in the standard scene file

Editorial review checks the source and documentation; it does not certify the measurement or mean we tested the device ourselves.

2,828 secondsIndependent review

GMK NucBox M8 mini PC review: Small, professional, and affordable

By Allen Ngo · Notebookcheck

Source published
Dec 28, 2025
Test performed
Not reported by source
Added to MiniPC.guru
Sep 23, 2026
Source reviewed
Sep 23, 2026
Tested hardware
AMD Ryzen 5 PRO 6650H, 6 cores / 12 threads, 3.3-4.5 GHz, Rembrandt-H PRO (Zen 3+), 35 W PL2 and 35 W PL1 as printed in the specification table · AMD Radeon 660M, 1900 MHz, driver 32.0.21037.1004 (not used: this row renders on the processor) · 16 GB LPDDR5 at 6400 MT/s, soldered, dual-channel · not applicable: a CPU render does not read from disk while the measurement runs; the unit carried a 512 GB AirDisk APF 10-512G
Software / version / OS
Blender · 4.3 · Microsoft Windows 11 Pro
Power profile
The review says Windows was set to Performance mode before its benchmarks; the system ships in the BIOS Balanced mode; 35 W PL1/PL2 per the specification table
Test conditions
Barbershop standard demo scene, CPU render backend as the table labels it (v4.3 Barbershop CPU). Samples and output resolution are those stored in the standard scene file

Editorial review checks the source and documentation; it does not certify the measurement or mean we tested the device ourselves.

Price history

GMKtec M8 · 16 GB RAM · 512 GB SSD

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New condition · US stores · USD · Selected configuration only. Prices exclude shipping and tax. Each price stays on the chart until that listing's next check, for at most 36 hours, the same window the store prices use. Out-of-stock, failed and missing checks leave gaps.

About this data5 references

Specs and any benchmark results come from the sources below. We haven't tested this Mini PC ourselves.

Sources

  1. GMKtec M8 — manufacturer specifications ↗
    • Manufacturer / specification source
    • Ports & displays · Reviewed Sep 12, 2026
    • Ethernet, Wi-Fi & Bluetooth · Reviewed Sep 12, 2026
    • RAM & storage upgrades · Reviewed Sep 12, 2026
    • Power supply & power limits · Reviewed Sep 12, 2026
    • Dimensions & weight · Reviewed Sep 12, 2026
    • Owner review source · Reviewed Sep 23, 2026
  2. Selected configuration ↗
    • Selected configuration
  3. GMK NucBox M8 mini PC review: Small, professional, and affordable ↗
    • External benchmark · Reviewed Sep 23, 2026
    • Owner review source · Reviewed Sep 23, 2026
  4. GMKtec NucBox M8 mini PC review ↗
    • Owner review source · Reviewed Sep 23, 2026
  5. GMKtec M8 "AMD Ryzen 5 PRO 6650H" Mini PC Review - Tiny Box For Entry-Level Users ↗
    • Owner review source · Reviewed Sep 23, 2026

Related models

Models with related processors, graphics or use cases. Check each model’s specifications and configurations before comparing.

ASUS ExpertCenter PN53 (6600H)AMD Ryzen 5 6600HGEEKOM A7 (7535HS)AMD Ryzen 5 7535HSGMKtec NucBox M6AMD Ryzen 5 6600HASUS ExpertCenter PN42 (N100)Intel N100