GMKtec
GMKtec M6 Ultra Gaming Mini PC Ryzen 7640HS
Bottom line: The GMKtec M6 Ultra Gaming Mini PC Ryzen 7640HS ($629.99 on Amazon as of 2026-10-08): 6-core/12-thread Ryzen 7640HS, 5.0GHz boost, ~30% faster than the 6800H; main trade-off: radeon 760M iGPU (8 CUs) handles only moderate gaming, not AAA titles.
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*Price sourced from Amazon.com. Last updated 2026-10-08. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 6-core/12-thread Ryzen 7640HS, 5.0GHz boost, ~30% faster than the 6800H
- ✓ 32GB dual-channel DDR5 out of the box, expandable to 128GB
- ✓ 1TB M.2 PCIe SSD with a second slot for up to 8TB PCIe 4.0
- ✓ Dual 2.5GbE LAN suits pfSense, Untangle, or a home server
- ✓ Triple display: 8K@60Hz USB4 plus 4K@60Hz HDMI 2.0 and DisplayPort
Cons
- ✗ Radeon 760M iGPU (8 CUs) handles only moderate gaming, not AAA titles
- ✗ HDMI is 2.0, so external 4K output caps at 60Hz
- ✗ Bundled 1TB SSD is PCIe 3.0, not the Gen4 the second slot supports
- ✗ Only a 1-year limited warranty from GMKtec
SpecPicks Verdict
SpecPicks scored GMKtec M6 Ultra Gaming Mini PC Ryzen 7640HS using a rating × review-volume × price-fit model applied to published specs and reviews across the home ai / computer lab category. GMKtec's home ai / computer lab lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for home ai / computer lab of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- VALUE & PERFORMANCE MINI PC - GMKtec Nucbox M6 Ultra Series is equipped with the powerful AMD Ryzen 5 7640HS processor. This CPU is an upper mid-range processor (APU) of the Phoenix product family. It has 6 SMT-enabled Zen 4 cores (12 threads) running at 4.3 GHz base speed to turbo boost 5.0 GHz.With a TDP Boost of 45W-60W, the Ryzen 7640HS CPU is more energy efficient and delivers a 30% Performance increase over previous AMD Ryzen 7 6800H, 6600U.
- 32GB DDR5 RAM & 1TB PCIe SSD - Installed with DDR5 32GB RAM SO-DIMM Dual Channel (2x16GB), the Nucbox M6 Ultra mini pc support expansion to 128GB RAM. Featured with 1TB M.2 2280 PCIe 3.0 SSD, support dual slot expansion to PCIe 4.0 8TB SSD. (Upgrades not included)
- GAMING PC - The Radeon 760M iGPU has 8 CUs (512 shaders) running at up to 2,600 MHz. This desktop computer can play moderate gaming at a steady FPS, it also HW-encodes and HW-decodes the most widely used video codecs such as AV1, HEVC and AVC.
- DUAL NIC LAN 2.5G RJ45 - Fast Network Speeds: Enjoy up to 2500Mbps data transmission speed without worrying about lagging. Ideal for working, gaming, and surfing the internet. Great for Untangle, Pfsense or as a server office PC.
- TRIPLE 4K DISPLAY - Unlock unparalleled productivity with support for three simultaneous displays, including a stunning 8K@60Hz via USB4, plus 4K@60Hz through both HDMI 2.0 and DisplayPort, transforming your workspace into a command center for multitasking and immersive entertainment.
- FAST INTERNET WiFi 6 + BT5.2 CONNECTION - Experience next-generation WiFi 6 for ultra-fast, low-latency internet on 2.5G/5G bands, paired with Bluetooth 5.2 for instant peripheral connections. BT5.2 allowing you more quickly to connect other wireless devices (headset, mouse, keyboard, etc.) Interface features 3*USB3.2 (Gen2) ports, 1*USB2.0 ports, 1*HDMI 2.0 port(4K@60Hz), 1*USB 4.0 port(PD/DP/DATA), 1*DP Port, 1*Audio 3.5mm (HP&MIC), 1*DC Power Port.
Full Specifications
| Brand | GMKtec |
|---|---|
| Color | M6 Ultra-32+1TB-Black |
| Turbo | Yes |
| Weight | 2.5g |
| RAM Type | DDR5 RAM |
| CPU Model | Ryzen 5 |
| CPU Speed | 5 GHz |
| Cache Size | 16 MB |
| Model Name | M6 Ultra |
| Model Year | 2025 |
| Resolution | 7680 x 4320 |
| Style Name | Minimalist |
| Unit Count | 1.0 Count |
| Screen Size | 75 |
| Aspect Ratio | 16:9 |
| Connectivity | Bluetooth, USB, WiFi |
| Display Type | LED |
| Memory Speed | 4800 MT/s |
| Model Number | M6 Ultra |
| Video Output | DisplayPort, HDMI 2.0 |
| Full listing title | GMKtec M6 Ultra Gaming Mini PC Ryzen 7640HS (Upgraded 6600H/ 6800U), 32GB RAM DDR5 1TB SSD Dual NIC LAN 2.5GbE Desktop Computers Office Home, Triple 4K Display, WiFi 6, USB4, BT 5.2, DP, HDMI 2.0 |
Ready to buy?
GMKtec M6 Ultra Gaming Mini PC Ryzen 7640HS (Upgraded 6600H/ 6800U), 32GB RAM DDR5 1TB SSD Dual NIC LAN 2.5GbE Desktop Computers Office Home, Triple 4K Display, WiFi 6, USB4, BT 5.2, DP, HDMI 2.0 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-08. Price and availability subject to change.
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