GMKtec
M6 Ultra Gaming Mini PC Ryzen 7640HS (Upgraded 6600H/ 6800H), 32GB RAM DDR5 512GB SSD Dual NIC LAN 2.5GbE Desktop Computers Office Home, Triple 4K Display, WiFi 6, USB4, BT 5.2, DP, HDMI 2.0
*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.
Bottom line: The M6 Ultra Gaming Mini PC Ryzen 7640HS (Upgraded 6600H/ 6800H), 32GB RAM DDR5 512GB SSD Dual NIC LAN 2.5GbE Desktop Computers Office Home, Triple 4K Display, WiFi 6, USB4, BT 5.2, DP, HDMI 2.0 is a niche pick — read recent reviews before buying in the processors category, priced around $549.99. Read recent reviews carefully before committing.
SpecPicks Verdict
SpecPicks classifies GMKtec M6 Ultra Gaming Mini PC Ryzen 7640HS (Upgraded 6600H/ 6800H)… as a niche pick — read recent reviews before buying in the processors category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. GMKtec's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for processors 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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Backed by GMKtec's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
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 & 512GB 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 512GB 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 | Black(M6 Ultra) |
| Turbo | Yes |
| Weight | 2.5g |
| RAM Type | DDR5 RAM |
| CPU Model | AMD Ryzen 5 7640HS |
| CPU Speed | 4.5 GHz |
| Cache Size | 16 MB |
| Model Name | M6 Ultra |
| Model Year | 2025 |
| Resolution | 4096 × 2160 |
| Style Name | R5 7640HS |
| Unit Count | 1.0 Count |
| Screen Size | 75 Inches |
Ready to buy?
GMKtec M6 Ultra Gaming Mini PC Ryzen 7640HS (Upgraded 6600H/ 6800H), 32GB RAM DDR5 512GB SSD Dual NIC LAN 2.5GbE Desktop Computers Office Home, Triple 4K Display, WiFi 6, USB4, BT 5.2, DP, HDMI 2.0 is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.
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