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GMKTech K4 Review – Ryzen 9 7940HS Radeon 780 Mini PC

GMKTech K4 Review - Ryzen 9 7940HS Radeon 780 Mini PC

Design and Build Quality

The {{YOUTUBE_VIDEO_TITLE}} is a small form factor PC that is constructed with a combination of metal and plastic. The exterior is made of an alloy with a matte finish, while the top and bottom are plastic. The main intake for fresh air is located at the front, while the left and right sides feature additional vents. Additionally, the device has a Visa mounting point for attaching it to the back of a monitor.

Hardware Specifications

The {{YOUTUBE_VIDEO_TITLE}} is equipped with a 2GHz processor and Radeon 780m graphics. It has a maximum power consumption of 45 Watts, which is relatively low for a device of this size. It also comes with 32GB of RAM at 5600MHz, a terabyte SSD, and Wi-Fi 6E. The box includes a 120W power supply, a warranty card, and an HDMI cable.

Performance

The {{YOUTUBE_VIDEO_TITLE}} is capable of 8K 30Hz, 4K 120Hz, and 40Gbps transfers. Tests have confirmed that the video output is working as expected. The device is also equipped with two USB 3.2 Gen 2 Type C ports, although it does not support power delivery.

Overview of {{YOUTUBE_VIDEO_TITLE}}

The {{YOUTUBE_VIDEO_TITLE}} is a Mini PC that comes with a 3.5 millimeter port with mic support and a status LED along the back. It also has a gigabit land, exit van tsets, and two HDMI 2.0 ports. Additionally, it has a USB 3.2 Gen 2 port and a USB 2.0 port. The power button is located on the front.

Upgradability

The {{YOUTUBE_VIDEO_TITLE}} is designed with upgradability in mind. To upgrade, one simply needs to lift off the top cover, which provides access to the SSD, RAM, and Wi-Fi card. The RAM is 5600 megahertz and the Wi-Fi card is Wi-Fi 6E from Mediatek. The Graphics configuration is limited to the frame buffer size, while the CPU configuration has no useful options.

Noise and Thermals

The {{YOUTUBE_VIDEO_TITLE}} produces fan noise, which can be sampled later on. It also has good thermals, which are important for the overall performance of the Mini PC.

Ryzen 9 7940HS

The Ryzen 9 7940HS is a powerful processor that offers four integrated Graphics and 28.7GB of usable RAM. This processor is capable of boosting performance and is suitable for running on a switch or as a server. It also has the Auto Power On feature, allowing users to set the power mode to either balance or performance.

2.5 Gigabit LAN Adapter

The device manager under the network adapters reveals that the Ryzen 9 7940HS has a 2.5 Gigabit LAN adapter, which is much faster than the traditional one Gigabit LAN adapter. This allows for faster transfer speeds and better performance. Additionally, the Mediatek Wi-Fi 6E signal strength is also strong, as the laptop is positioned on the lid and the plastic does not interfere with the signal.

Windows 11 Pro

The Ryzen 9 7940HS is compatible with Windows 11 Pro, allowing users to take advantage of the latest features and updates. This operating system also provides improved security and performance, allowing users to get the most out of their laptop. Additionally, the Windows 11 Pro also offers a range of tools and applications that can help users to be more productive.

Ryzen 9 16-Threads

The Ryzen 9 processor is a powerful processor with 16 threads and 8 cores, with a maximum turbo speed of 5.2. It is capable of delivering good performance in synthetic benchmarks, with a multi-core score of 13,000. However, it is possible to achieve better results with the addition of a Samsung 980 Pro PCIe 4.0, which can almost double the read and write sequential speeds.

Thermal Throttling

Unfortunately, the Ryzen 9 processor is prone to thermal throttling, which can significantly reduce its performance. This is due to the processor reaching temperatures of up to 102.5 degrees Celsius, which triggers a T-junction Max event and puts the processor into sleep mode. This is a clear indication that the processor is overheating and needs to be cooled down in order to prevent further thermal throttling.

Preventing Thermal Throttling

In order to prevent thermal throttling, it is important to ensure that the processor is adequately cooled. This can be done by using a high-quality CPU cooler, such as an AIO liquid cooler or a tower cooler. Additionally, it is important to ensure that the case has adequate airflow, as this will help to keep the processor cool. , it is important to ensure that the processor is not overclocked, as this will increase the temperature and cause further thermal throttling.

Thermal Throttling

The {{YOUTUBE_VIDEO_TITLE}} claims thermal throttling is occurring due to the device’s inability to adequately cool itself. Upon physical inspection, it was observed that the outer case of the device was reaching temperatures of up to 56 degrees Celsius, which is quite hot to the touch. This indicates that the thermal cooling system is not up to the task of keeping the device at a reasonable temperature.

Synthetic Benchmarking

Synthetic benchmarking was conducted on the device to assess its performance. The results of the benchmarking showed that the device had a good graphics score of 31,000, which is one of the best integrated graphics scores seen. The Geekbench 6 score was also good, with a single core score of 16,000 and a multi-core score of 13,900. These results indicate that the device has good performance, especially in short bursts.

Stress Testing

To further assess the device’s performance, stress testing was conducted using Cinebench R23. The results of the stress test showed that the device was able to maintain its performance over the 10 minute test period, indicating that it is capable of handling long-term workloads.

Ryzen 9 7940hs Mini PC Performance

The Ryzen 9 7940hs Mini PC is a powerful machine that is capable of delivering excellent performance. It is equipped with the latest Intel Iris XE Graphics and the Radeon 780m, which makes it capable of handling demanding tasks such as 4K video decoding and editing. The start menu, multitasking, and other functions load up quickly, making it a great choice for those who need a powerful machine for their work.

4K Video Decoding

The Ryzen 9 7940hs Mini PC is capable of handling 4K video decoding with ease. It can handle 10-bit HEVC files without any stutter or issues. Even with the 13th gen, it can handle 4K 60 frames per second files without any drop frames. The Radeon 780m handles it flawlessly, making it a great choice for those who need to work with 4K videos.

Video Editing Performance

The Ryzen 9 7940hs Mini PC is also capable of handling video editing tasks with ease. It can handle 4K files with no problems, even with large video files with multiple layers and color grading. It can also handle 100 megabit files with no drop frames, even at quarter playback. This makes it a great choice for those who need to edit videos with demanding specs.

Fan Noise

The fan noise of the Ryzen 9 7940hs Mini PC can get a bit loud, but it is still manageable. It is not too loud and does not interfere with the performance of the machine. This is a great feature for those who need a powerful machine but do not want to deal with too much noise.

The Benefits of a Dedicated GPU

A dedicated GPU is a must-have for any serious video editor or gamer. It can drastically reduce the time it takes to render footage, as well as provide a smoother gaming experience. In the case of the Radeon 780m, it was able to render a one-minute video in just 26 seconds. This is much faster than what the CPU alone could do.

Adobe Premiere Pro Performance

The Radeon 780m may not be able to beat the Intel 13th gen when it comes to Adobe Premiere Pro performance, but it still offers a good experience. It is able to handle the program’s various features with ease.

Cyberpunk 2077 Performance

The Radeon 780m is also able to handle Cyberpunk 2077 with ease. When set to HD and the lowest preset, it was able to run the game at around 50 frames per second, with some dips into the late 40s. During firefights, the frame rate may drop off a little bit, but overall, the performance is excellent for integrated graphics.

Integrated Graphics

The integrated graphics on this mini PC is top-notch. The GPU is able to fluctuate between 2.5 gigahertz and is able to handle 1080p resolution with normal settings. When playing GTA 5, it is able to reach up to 85 frames per second, and when out of the car, it is able to reach 80 frames per second. This is a great performance for light gaming and older titles at 1080p.

Linux Support

The mini PC is also able to run Linux. Manjaro was tested and it worked. The wireless was also able to work with open source drivers.

Thermal Issues

Unfortunately, this mini PC is plagued with thermal issues. With the Ryzen 9 7000 series, it is too hot. The cooling is not up to the job and if the user intends to push it hard, then they will eventually run into problems. The CPU cores have reached 200.

5 inch drive.

Overview of {{YOUTUBE_VIDEO_TITLE}}

The {{YOUTUBE_VIDEO_TITLE}} is a mini PC that is capable of providing a good gaming performance. It features two HDMI 2.0 ports, a USB4 port, and Wi-Fi 6E. The RAM speeds are good and the SSD speeds are decent, but there is no room for an extra SSD or 2.5-inch drive.

Temperature Issues

The {{YOUTUBE_VIDEO_TITLE}} has the potential to reach temperatures of up to 102 degrees Celsius, which can be dangerous. The SSD can reach temperatures of up to 90 degrees Celsius, and the RAM temperatures can also rise quickly. The metal frame helps to dissipate some of the heat, but it is still possible to burn oneself if the device is used for a few hours and pushed hard.

Gaming Performance

The {{YOUTUBE_VIDEO_TITLE}} provides good gaming performance, with temperatures remaining in the late 90s. However, the fan can struggle to keep up with the heat, resulting in a noticeable noise. The HDMI ports are limited to 4K 60, but the USB4 port can support 4K 120 hertz, 4K 60, and 8K 30.

Power Delivery

The {{YOUTUBE_VIDEO_TITLE}} does not support power delivery, so users should be wary of plugging any power into the Type-C port. Doing so could result in damage to the device, as evidenced by the narrator’s previous experience.

Overview of {{YOUTUBE_VIDEO_TITLE}}

The {{YOUTUBE_VIDEO_TITLE}} is a Mini PC that offers a 5 inch drive, making upgrades easy. It has a 45 watt power limit and runs on 35 Watts. The main attraction of the device is its performance. However, there are some issues with the thermals that need to be addressed.

Features of {{YOUTUBE_VIDEO_TITLE}}

The {{YOUTUBE_VIDEO_TITLE}} is a Mini PC that offers a 5 inch drive, making upgrades easy. It has a 45 watt power limit and runs on 35 Watts. The device has access to RAM, Wi-Fi card and SSD, making it a great choice for those looking for a powerful and efficient device.

Pros and Cons of {{YOUTUBE_VIDEO_TITLE}}

The {{YOUTUBE_VIDEO_TITLE}} has many advantages. It is easy to upgrade, has access to RAM, Wi-Fi card and SSD, and runs on a 45 watt power limit. However, the device has some issues with thermals that need to be addressed.

Performance of {{YOUTUBE_VIDEO_TITLE}}

The {{YOUTUBE_VIDEO_TITLE}} offers great performance, thanks to its 45 watt power limit and access to RAM, Wi-Fi card and SSD. However, the device has some issues with thermals that need to be addressed in order to get the best performance out of the device.

The {{YOUTUBE_VIDEO_TITLE}} is a small form factor PC that is designed to provide powerful performance in a compact package. It is equipped with a 2GHz processor, Radeon 780m graphics, 32GB of RAM, and a terabyte SSD. The device is capable of 8K 30Hz, 4K 120Hz, and 40Gbps transfers, and tests have confirmed that the video output is working as expected.

The {{YOUTUBE_VIDEO_TITLE}} is a Mini PC with good upgradability, fan noise, and thermals. It has a 3.5 millimeter port with mic support, a status LED along the back, a gigabit land, exit van tsets, two HDMI 2.0 ports, a USB 3.2 Gen 2 port, and a USB 2.0 port. The RAM is 5600 megahertz and the Wi-Fi card is Wi-Fi 6E from Mediatek. The Graphics configuration is limited to the frame buffer size, while the CPU configuration has no useful options.

The Ryzen 9 7940HS is a powerful processor that offers four integrated Graphics and 28.7GB of usable RAM. Additionally, it has a 2.5 Gigabit LAN adapter, which is much faster than the traditional one Gigabit LAN adapter. It is also compatible with Windows 11 Pro, allowing users to take advantage of the latest features and updates. Overall, the Ryzen 9 7940HS is a great processor for those looking for a powerful and reliable laptop.

Overall, the {{YOUTUBE_VIDEO_TITLE}} is a capable device with good performance. Its thermal cooling system is not up to the task of keeping the device at a reasonable temperature, but it is able to maintain its performance over long periods of time.

The {{YOUTUBE_VIDEO_TITLE}} is a great Mini PC that offers a 5 inch drive, making upgrades easy. It has a 45 watt power limit and runs on 35 Watts. The device has access to RAM, Wi-Fi card and SSD, making it a great choice for those looking for a powerful and efficient device. However, the device has some issues with thermals that need to be addressed in order to get the best performance out of the device.

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