GMKtec Gaming Mini PC AMD Ryzen 7 H 255 (Upgraded 8745HS) 32GB DDR5 1TB SSD, Desktop Computer 3XM.2 2280 Expansion, Oculink, Dual NIC 2.5G, HDMI 2.1, USB4 K12
$78.99
Price: $78.99
(as of Dec 08, 2025 11:46:08 UTC – Details)
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Purpose: GMKtec aims to provide customers with reliable high-quality products, professional after-sales service, and become a leading brand in the Mini PC industry.
About: GMKtec is a company established in 2019, focusing on the research, design, and production sales of computer hardware. We have our own R&D & manufacturing team. Our Mini PCs deliver the best powerful performance in an ultra-compact form for everyday computing tasks.
RYZEN 7 H 255 CPU – The Ryzen 7 H 255 is a chip from the Hawk Point family and is an upgraded version of the older Ryzen 7 8745H and has 8 cores (16 threads thanks to SMT support) that run at up to 4.9 GHz, together with the powerful Radeon 780M iGPU. Unlike Zen 3, Zen 4 offers AVX512 support along with other improvements such as larger caches/registers/buffers across the board.
GAMING PC – The Radeon 780M (12 CUs / 768 shaders, up to 2,600 MHz) can drive multiple displays simultaneously with a resolution of up to 8K. Hardware encoding and hardware decoding of the most common video codecs (AV1, AVC, HEVC) is also no problem; playing the latest games on FSR settings without issues.
32GB DDR5 RAM + 1TB SSD – The K12 mini computer is equipped with Dual 16GB (Total 32GB) SO-DIMM DDR5 5600MHz memory sticks. 1TB PCIE 4.0 SSD Drive with 3x M.2 2280 Expansion slots. Each slot capable of reading up to 8TB. (24TB MAX)
QUAD SCREEN 4K DISPLAY SUPPORT – K12 Mini PC support 4-screen 4K/8K output via HDMI 2.1 (8K@60Hz), DisplayPort 1.4 (4K@60Hz), and USB Type-C Transfer speed (supporting PD3.0/DP1.4/DATA). Ideal for gaming, video editing, and multitasking, it provides expansive and crisp multi-display support.
OCULINK PORT – The Oculink port on the rear interface enables higher bandwidth capabilities, better frame rates and lower lag. The standard also operates at PCIe x4 speeds, compared to Thunderbolt’s x3. Gamers and content creators can benefit from Oculink’s higher bandwidth, resulting in better performance and lower lag for eGPU setups
FAST 2.5GBE + WIFI 6E + BT 5.2 – Ethernet 2.5GbE LAN port design provides more applications, such as firewall, multichannel aggregation, soft routing, file storage server. Built-in WIFI 6E / Bluetooth 5.2 is more stable and efficient to connect multiple wireless devices such as projector, printer, monitor, speakers and etc.
DUAL COOLING FANS WITH LIGHTING – Turbo CPU fan + a massive DDR5/SSD cooling fan deliver silent, ultra-efficient cooling (just 35dB in Quiet Mode!), while the advanced heatpipes and 360° airflow keeps your Ryzen Mini PC frosty under heavy loads. Plus, 13 dazzling RGB lighting modes let you personalize your rig’s vibe.
GMKtec Service- GMKtec offers a 1-year limited for each mini PC, starting from the date of the purchase. All defects due to design and workmanship are covered. With a professional after sales team always ready to attend to your needs, you can simply relax and enjoy your mini PC
Customers say
Customers find the mini PC performs well, working perfectly in home computer labs and running Windows 11 smoothly. They appreciate its speed, with one customer noting the 1TB NVME drive is blazing fast, and its compact size while being powerful. Customers find it easy to set up and appreciate its quiet operation even under load. While customers consider it good value for money, some wish it had more USB ports.
4 reviews for GMKtec Gaming Mini PC AMD Ryzen 7 H 255 (Upgraded 8745HS) 32GB DDR5 1TB SSD, Desktop Computer 3XM.2 2280 Expansion, Oculink, Dual NIC 2.5G, HDMI 2.1, USB4 K12
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$78.99
Critic at large –
Excellent small capable device
Purchased as a Linux media PC and NAS.Running Debian. I have not been able to get WiFi 6E to work with 6ghz signal. On 5ghz, wifi works pretty well with good speed. However the WiFi card’s temperature can quickly skyrocket to absurdly high destructive temperatures. If you max out the WiFi link such as during a local speed test, I’ve seen the temperature quickly climb above 105 C before I chickened out and stopped the speed test.Otherwise the system is most impressive in that it can run cool especially in its low power mode set via EUFI.There’s a secondary fan on top. It’s quite noisy. Runs all the time and does very little to cool the device. Monitoring temperatures, the fan does not significantly help cool the WiFi adapter. SSD doesn’t seem to heat up much even without the fan. This MiniPC had been sold earlier without the top fan. Not sure why they felt the need to add one. I had earlier tried the GMKTec G3 minipc. Its SSD did get extremely hot and it doesn’t have a fan, no heatsink, and the SSD is in a sealed top area without ventilation. Maybe they’re overcompensating in this minipc or maybe it depends on the specific brand SSD included.As a media PC, the GPU is plenty fast to play 4k60 video stream even on low power mode. Meets my use case.It’s also ideal for my use case as a NAS to have the two 2.5gbs ethernet ports. Pretty easy to set up bridging in Debian between the two ports. Can get amazing speeds to/from the NAS over 2.5gb ethernet.Overall, good system, good value when promotion or coupon is in place.
Joshua Hinton –
Exceeds Expectations
The 780m iGPU in this system performs far better than I expected. iGPUs have come a very long way in the last five years, and this is a good example of how far they have come. I was able to play some fairly heavy games (Palworld, Claire Obscure: Expedition 33) at 1080p getting over 30 FPS in most instances at reasonable settings.I performed a little bit of benchmarking on Windows, but considering it is one of my least preferred OS to use, I didnât do a lot. Performance was good, games ran well enough, etc. This is a pretty beefy systems with 8 cores and 32GB of DDR5 5600. One thing I really noticed about Windows is the power consumption was odd; the system would idle down to about 10-11 watts, but because Windows probably had random background processes going, it would frequently spike to around 40 watts and idle back down again. If you plan to have this PC as an always on system, maybe avoid using Windows.The real testing happened after I installed Bazzite (my favorite OS, right alongside Aurora Linux), which was a perfectly smooth install. As a side note to anyone who hasnât used Bazzite lately, it feels great as a day to day main driver OS these days; it has come a long way.While in gamescope the system idles around 12-13 watts (not bad at all) without the pesky spikes Windows was experiencing. When at max load, I was hitting around 85 watts. For gaming itself, I initially tried out Palworld, Claire Obscure: Expedition 33, and ReCore.- Palword 1080p, medium settings, 35-50 FPS in the open world. 60 FPS in dungeons.- Expedition 33 1080p, medium settings, 28-40 FPS in Lumiere (one of the more difficult places for the game to run. So many particles and people itâs really taxing).- ReCore 1080p, 60 FPS, high settings. Itâs an older game, so it locks 60 FPS pretty easy.I took some video of recordings of all three games (steam game recording doesnât catch the FPS counter of MangoHud, so youâll just have to trust your eyes and the stats Iâve given).I am more than impressed with the performance this Mini-PC has for gaming. I didnât expect it to be able to run Expedition 33 at 1080, let alone at a playable FPS. Just about anything pre-2025 should run pretty darn well on this system.For day to day tasks this system should very easily handle just about anything you throw at it. I didnât test video editing or any of the artistic pursuits, but those should be good enough on this system. Donât expect much out of it for AI; this chip isnât built for that. It could run a very small language model (7b?) and maybe do some slow image renders, but really look elsewhere if that is your goal.As a server, this system is very well suited as well. Memory is 2 SODIMM slots, so you could max out to 128GB RAM. 8 Cores/16 Threads would run quite a few services. There are 3 2280 NVMe slots in this system, so you have room to add plenty of storage. The idle wattage is quite low making it a good choice as well. Finally, this system has 2 2.5GB/s LAN ports.Overall, I am impressed. My bar was pretty high, but my expectations have been exceeded.
Rob Bryant –
A Powerhouse of Performance and Efficiency
The GMKTEC AMD Ryzen 7 5700U 16GB+512GB is an impressive piece of technology that delivers on all fronts. Itâs powered by the AMD Ryzen 7 5700U processor, which is renowned for its superior performance and energy efficiency. This makes it an excellent choice for both heavy-duty tasks and everyday computing needs.The 16GB RAM ensures smooth multitasking, allowing you to run multiple applications simultaneously without any lag. Whether youâre editing videos, playing games, or running complex simulations, this machine can handle it all with ease.The 512GB storage is ample for storing all your files, documents, and multimedia content. It also contributes to the overall speed and performance of the system, ensuring quick boot times and fast data retrieval.One of the standout features of this model is its robust build quality. It feels sturdy and durable, promising a long lifespan. The design is sleek and modern, making it a stylish addition to any workspace.Another major plus is the ease of setup. The process is straightforward and user-friendly, making it a breeze even for those who arenât tech-savvy.In conclusion, the GMKTEC AMD Ryzen 7 5700U 16GB+512GB is a high-performance machine that offers great value for its price. Itâs a reliable choice for both professionals and casual users who demand speed, power, and efficiency from their computing devices.Easy setup for the folks that are not computer savvy.
Amazon Customer –
Good pc
So far, so good. Fully functional little pc.It has Window you’ll have to figure out Office.