GMKtec Ryzen 5 7640HS Mini PC Review: Specs, Pros and Cons

What stands out

• AMD Ryzen 5 7640HS CPU with 6 cores and 12 threads
• 32GB DDR5 dual-channel RAM expandable to 128GB
• Radeon 760M iGPU with AV1 hardware decoding
• Dual 2.5G Ethernet ports for stable network connectivity
• Triple display support including 8K via USB4

Who it fits

Key specs explained for this mini PC

Processor: AMD Ryzen 5 7640HS

This upper mid-range APU features six Zen 4 cores with twelve threads. It boosts up to 5.0 GHz for fast task handling. The 45W-60W TDP design offers better energy efficiency than older models. You get a noticeable performance jump over previous generation chips like the Ryzen 7 6800H. This makes it suitable for heavy multitasking and demanding applications without excessive power draw.

Memory: 32GB DDR5

The system includes dual-channel DDR5 RAM with two 16GB modules. This high-speed memory type improves data transfer rates compared to older DDR4 standards. It supports expansion up to 128GB if you need more capacity later. The 32GB configuration allows you to run multiple applications smoothly. It is ideal for users who edit video or run virtual machines.

Graphics: Radeon 760M

This integrated GPU has eight compute units and 512 shaders running at 2,600 MHz. It handles moderate gaming at steady frame rates for less demanding titles. It also supports hardware encoding and decoding for popular video codecs like AV1 and HEVC. This ensures smooth playback of high-resolution content. It is a capable solution for casual gaming and media consumption.

Storage: 1TB PCIe SSD

The unit comes with a 1TB M.2 2280 PCIe 3.0 solid-state drive. This provides ample space for your operating system, applications, and large files. The PCIe interface ensures fast read and write speeds for quick boot times. You can also expand storage by adding a second drive up to 8TB via PCIe 4.0. This setup is perfect for storing extensive game libraries or project files.

Network: Dual 2.5G LAN

This feature includes two 2.5G RJ45 ports for wired connections. It supports data transmission speeds up to 2500Mbps. This reduces lag and improves stability for online gaming or large file transfers. It is also suitable for network appliance roles like running pfSense or Untangle. You benefit from consistent performance without the interference often found in wireless connections.

Design and build overview

The GMKtec Nucbox M6 Ultra is listed as a compact desktop unit. The listing identifies the specific size and color variant as M6 Ultra-32+1TB-Black. This model name indicates the included memory and storage configuration rather than a physical dimension change. You will receive a small form factor chassis designed for space efficiency. The listing does not provide exact weight or material composition details. It focuses on the internal specifications and connectivity options instead.

According to the listing, the build supports dual-channel DDR5 RAM and a 1TB PCIe 3.0 SSD. The front or rear I/O panel includes three USB 3.2 Gen 2 ports, one USB 2.0 port, and a USB 4.0 port. This USB 4.0 interface supports DisplayPort output and Power Delivery. You also get one HDMI 2.0 port, one DisplayPort, and a 3.5mm audio jack. A DC power port completes the physical connections.

The design prioritizes connectivity over flashy aesthetics. The inclusion of dual 2.5G LAN ports suggests the chassis is built for network-intensive tasks. You can use this layout for home office setups or as a small server. The compact footprint allows you to mount it behind a monitor or place it on a desk without taking up much room. The finish appears to be a standard black plastic or metal casing, typical for this class of mini PC. The listing does not mention specific cooling fan sizes or vent placements, so you should expect standard passive or active cooling solutions based on the 45W-60W TDP range.

Setup and everyday use guide

Setting up this GMKtec mini PC requires connecting the included power adapter to the DC port. You will need to attach displays via the HDMI 2.0 or DisplayPort outputs for standard 4K resolution. For higher productivity, the USB4 port supports an 8K@60Hz display. The system includes 32GB of DDR5 RAM and a 1TB PCIe 3.0 SSD, so no immediate internal upgrades are necessary for most users. However, the dual SO-DIMM slots allow expansion up to 128GB, and the M.2 slot supports further storage growth if needed.

For daily connectivity, the device features WiFi 6 and Bluetooth 5.2. This allows for fast internet access and quick pairing with wireless peripherals like mice and headsets. The dual 2.5G Ethernet ports provide stable network speeds, making it suitable for tasks requiring low latency or for use as a network server with software like Untangle or Pfsense. The Radeon 760M integrated graphics handle moderate gaming and hardware-accelerated video decoding for common codecs. The triple display support transforms the workspace into a command center for multitasking. The unit is backed by a one-year limited warranty covering design and workmanship defects.

Before you buy this mini PC

This GMKtec M6 Ultra is a capable compact desktop, but you must verify your peripheral compatibility before purchasing. It ships with a 1TB PCIe 3.0 SSD and 32GB of DDR5 RAM. While the system supports expansion to 128GB of RAM and dual storage slots, these upgrades are not included. You should confirm that your monitors support the specific output types listed, such as HDMI 2.0 or DisplayPort, to achieve the advertised triple 4K display setup. The USB4 port offers high-speed data and display connectivity, but ensure your cables and docks are compatible with USB4 standards. Network performance relies on your local infrastructure, as the dual 2.5G Ethernet ports require compatible router switches to reach full speeds. Keep the unit in a well-ventilated area to maintain the 45W-60W TDP performance. When comparing this to other 1 options on the page, consider if you need the specific Ryzen 5 7640HS processor or if a different configuration better suits your multitasking needs. Regularly check for driver updates from AMD to ensure optimal graphics performance for gaming and media encoding tasks.

Check before you buy

• Verify monitor compatibility with HDMI 2.0 or DisplayPort outputs
• Confirm USB4 cable and dock compatibility for high-speed transfers
• Check if you need additional RAM beyond the included 32GB
• Ensure your router supports dual 2.5G Ethernet connections

The product at a glance

1

GMKtec Ryzen 5 7640HS Mini PC

Best for: networking tasks and multitasking workflows

Processor

AMD Ryzen 5 7640HS

Installed RAM

32GB

Storage Capacity

1TB

Memory Type

DDR5

Graphics

Radeon 760M

Ethernet Ports

Dual 2.5GbE

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The GMKtec M6 Ultra packs an AMD Ryzen 5 7640HS processor and 32GB of DDR5 RAM into a compact chassis. It includes a 1TB PCIe SSD and Radeon 760M graphics for moderate gaming and multitasking. Dual 2.5G Ethernet ports and USB4 connectivity make it suitable for network tasks and high-speed data transfer. You get support for three simultaneous 4K displays, creating a robust workstation for productivity and media consumption.

Pros

• AMD Ryzen 5 7640HS CPU with 6 cores and 12 threads
• 32GB DDR5 RAM expandable to 128GB
• 1TB M.2 PCIe 3.0 SSD storage
• Dual 2.5G Ethernet ports for fast networking
• Supports triple 4K displays including 8K via USB4

Cons

• PCIe 3.0 SSD limits storage bandwidth compared to PCIe 4.0
• Integrated Radeon 760M graphics restrict heavy gaming performance
• 1-year limited warranty is shorter than some competitors

Good fit if

• You need dual 2.5G Ethernet for home server or firewall use
• You require high RAM capacity for multitasking or virtualization
• You want a compact PC with triple display support

Skip if

• You need dedicated graphics for high-end gaming
• You require PCIe 4.0 SSD speeds for large file transfers
• You prefer a longer warranty period than one year

Verdict: GMKtec M6 Ultra Ryzen 5 7640HS Mini PC suits users who prioritize network connectivity and high memory capacity for multitasking. It delivers solid performance for office work and moderate gaming, though the integrated graphics and PCIe 3.0 storage limit heavy creative or gaming workflows.

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See also

• best GMKtec mini PCs with 16GB RAM
• best GMKtec mini PCs with 512GB SSD
• gmktec ryzen 5 7640hs mini alternatives
• gmktec ryzen 5 3500u mini review