Minisforum UM480XT vs. UM690S vs. UM790 Pro: How to Choose Between AMD Ryzen™ Powered Mini PCs


In the realm of ultra-small PC categories, the integration of AMD Ryzen™ mobile processors has proven to be a game-changer, particularly in the Mini PC segment. Offering a blend of entry-level independent graphics and unparalleled performance, these processors have effectively bridged the gap between productivity and gaming capabilities within a compact form factor. Standing out among Mini PC brands, MINISFORUM has emerged as a vanguard in championing the use of the AMD Ryzen™ platform.

Presently, MINISFORUM has unveiled a formidable lineup of Ryzen Powered Mini PCs, namely the UM480XT, UM690S, and UM790 Pro, each equipped with the powerful AMD Ryzen™ 7 4800H, AMD Ryzen™ 9 6900HX, and AMD Ryzen™ 9 7940HS processors, respectively. These processors represent the pinnacle of technological innovation in their respective eras. Notably, the barebone versions of these Mini PCs are priced at $299.99, $459, and $609, catering to the diverse budgetary requirements of users.

Before delving into the detailed exploration of these three Mini PCs, it is imperative to first examine the fundamental specifications and performance benchmarks of the three generations of AMD Ryzen™ processors, including the Ryzen™ 7 4800H, Ryzen™ 9 6900HX, and 7940HS Processors. By establishing a comprehensive understanding of the processor capabilities, this review aims to provide a holistic assessment of MINISFORUM's latest offerings in the Mini PCs Series.

Processors Comparison

In 2020, AMD unveiled the Ryzen 7 4800H, showcasing its prowess in high-end processors. Constructed on TSMC's 7nm process technology, this powerhouse combined Zen2 and Vega microarchitecture, boasting a maximum main frequency of 4.2GHz. It also sported an integrated Vega 7 core display and a substantial built-in 12MB cache (L2+L3), cementing its position as a top-tier choice for performance-oriented users.

The subsequent year saw the introduction of the Ryzen 9 6900HX, an upgraded flagship processor that embraced the 6nm process technology. This iteration incorporated a fusion of Zen3+ and RDNA2 micro-architecture, delivering a notable boost with a maximum main frequency of 4.9GHz. The integrated Radeon 680M core display and a generously sized 20MB cache underscored AMD's commitment to providing cutting-edge solutions for demanding computing tasks.

Moving into the current year, AMD's Ryzen 9 7940HS from the 7840 series took the spotlight, asserting itself as the chip king of the moment. Boasting the latest 4nm process technology, this powerhouse was crafted with a blend of Zen4 and RDNA3 micro-architecture, enabling an impressive maximum main frequency of 5.2GHz. Its integrated Radeon 780M core display, 24MB cache, and the introduction of an AI engine marked a significant leap forward in AMD's pursuit of computational excellence.

When examining the realm of CPU single-core performance, the 7940HS stands prominently as the second-best contender, trailing solely behind the 13th generation Core i7-13700H. Similarly, the 6900HX holds its ground, aligning with the 12th generation Core i5-12450H, showcasing commendable parity. On a slightly less elevated tier, the 4800H, while marginally less powerful than the i5-1240P, still boasts the capacity to outshine its contemporaries, including the likes of the i3-N305, an entry-level processor.

In terms of CPU multi-core performance, the 7940HS with a 65W power consumption outperformed the i7-13700H, which also consumed 65W. The performance comparison revealed that the 6900HX fell in between the i7-12650H and the i5-13500H. Moreover, the 4800H showcased superior performance when compared to the i5-12450H and demonstrated a performance level similar to that of the i5-1240P.

In the 3DMark benchmark, the performance of the Radeon 780M, which is integrated in the 7940HS, stands out as the most superior, rivaling the independent GTX1650 graphics. Furthermore, the Radeon 680M integrated within the 6900HX surpasses the capabilities of the Iris Xe 96 core display by a significant margin. Meanwhile, the Vega 7 integrated in the 4800H demonstrates a commendable performance range, scoring between UHD 48 and UHD 64, showcasing its impressive capabilities.

The comparsion of various processors in terms of their performance levels reveals intriguing insights. According to the data, 7940HS and i7-13700H appear to be situated at a similar performance tier, suggesting comparable processing capabilities. In a separate context, the 6900HX processor falls within the performance spectrum, landing itself between the i7-12650H and the i5-13500H models. This positioning implies a moderate performance level, not reaching the heights of the former but surpassing the capabilities of the latter. Moreover, the 4800H and i5-12450H processors are found to operate at almost equivalent levels, showcasing a close parity in their processing prowess.

MINISFORUM's three core models, in contrast to the Intel platform and other AMD Ryzen™ Mini PCs, boast an innovative liquid gold heat dissipation system, setting them apart from the competition. This unique feature ensures efficient cooling and optimal performance, making them a top choice for users seeking reliable and high-performing Mini PCs. Moreover, these models offer an attractive price point without compromising on quality or functionality,


The MINISFORUM UM480 XT, featuring the 2020 Core King, boasts an impressively low barebone price of $299.99, rivaling that of PCs equipped with the Intel i3-N305. Despite its affordability, this Mini PC delivers superior performance and an unmatched competitive edge within its price range. Its sleek design, characterized by a composite material body with a distinctive wavy texture, is accentuated by the subtle yet alluring embedded MINISFORUM logo on the top cover. Offering multiple placement options, including flat, wall-mounted, and vertical positioning with the included desktop stand, it optimizes desktop space without compromising on style.

Measuring a compact 0.8L, the UM480 XT is equipped with a range of essential ports on both its front and rear panels, including 2 USB-A3.2 Gen2, 2 USB2.0, USB-C3.2 Gen2, USB-C (video output), 2 HDMI, RJ45, audio interfaces, and a power jack, ensuring seamless connectivity for various peripherals. In a rigorous 30-minute FPU baking test conducted by AIDA64, the UM480 XT exhibited consistent performance, maintaining a steady processor power consumption of 35W and a CPU frequency of 3.4GHz. Impressively, it effectively managed its temperature, with a controlled range of 77 degrees, and overall power consumption of 63W.

Notably, the operating noise level remains at around 43 decibels next to the PC, which drops to less than 39 decibels in the vicinity of the user.

For those seeking a cost-effective computing solution centered on productivity, the MINISFORUM UM480 XT presents an unmatched proposition, particularly in its price bracket. With its robust performance capabilities and thoughtful design elements, it stands as a formidable contender in the market, especially for users not specifically requiring AV1-encoded 8K video playback.

MINISFORUM UM690S (Barebone)

The MINISFORUM UM690S, featuring last year's Core King, is competitively priced at $459, aligning itself with certain PCs upgraded to the AMD Ryzen™ 7 7735HS platform. Despite sharing the same price point, the UM690S boasts notably stronger performance, ensuring its position as a formidable contender in the market.

Distinguishing itself from its siblings such as the UM480XT and UM773, the UM690S sports a composite material body with a textured surface. Notable modifications include the incorporation of a built-in dual fan and an expanded heat dissipation grille, leading to an increased thickness of 56.7mm from the predecessor's 48mm. The device's reduced volume, approximately 0.88L, limits its compatibility with the original desktop stand, restricting placement options to flat laying or wall mounting.

While maintaining the same interface layout as the UM480XT, the UM690S sees a notable enhancement in its connectivity capabilities. The front-facing USB-Cs have been upgraded to USB4 and USB-C3.2 Gen2, providing improved video output without PD power supply support. Additionally, it can facilitate the operation of a 15W portable display.

A performance analysis conducted through the FPU baking machine test using AIDA64 revealed that the UM690S's processor can maintain stability at around 45W, with temperature control within 78 degrees. Operating at a primary frequency of approximately 3.8GHz, the PC emits a noise level of about 45 decibels.

With the entire machine consuming approximately 64W of power, the noise emission at the user's location is reduced to less than 39 decibels. Despite its impressive features, the UM690S falls slightly short when compared to the superior hardware specifications and measured performance of AMD's previous flagship, the Ryzen™ 9 6900HX. Nonetheless, its competitive pricing at par with the Ryzen™ 7 7735HS is likely to garner significant market attention and consumer interest.



MINISFORUM UM790 Pro (Barebone)

MINISFORUM UM790 Pro distinguishes itself from its competitors primarily due to its robust AMD Ryzen™ 9 7940HS processor, known for being the powerhouse of the 7040 series. Notably, the current price of the barebone system has plummeted to an impressive $609, further enhancing its appeal. The product has undergone a significant overhaul, including a revamped top cover design, contributing to its heightened competitiveness in the market.

An evident departure from its predecessors, the UM790 Pro now sports a sleek metal body, exuding a sophisticated aura through a refined frosting process that grants it an exceptionally strong metallic texture. Not only does it exhibit an enhanced visual appeal, but its tactile experience is also notably improved. Furthermore, the device's interface has undergone a comprehensive upgrade, featuring 2 full-featured USB4 ports, 4 USB-A3.2 Gen2 ports, 2 HDMI2.1 ports, RJ45, audio interface, and a power jack, thus ensuring seamless connectivity and adaptability.

During the AIDA64 FPU baking test, the UM790 Pro demonstrated remarkable stability, maintaining a consistent power consumption of 65W, with the CPU temperature well-contained at approximately 83 degrees. Impressively, the main frequency reached an impressive 4.6GHz, with the overall power consumption of the entire machine recorded at around 90W. The noise emitted by the device hovered at a moderate 50 decibels when situated next to the PC and dropped to approximately 40 decibels in closer proximity to the user, offering a relatively subdued acoustic experience.

Moreover, the UM790 Pro surpasses its predecessors, the UM480 and UM690, with its enhanced design that accommodates dual M.2 hard drives, a standard inclusion of a killer wireless network card (Intel AX1675), and an upgraded graphics-oriented BIOS interface. This amalgamation of features positions the MINISFORUM UM790 Pro as an optimal choice for individuals seeking a compact yet highly expandable Mini PC that delivers unparalleled performance within its product category.


In conclusion, the choice between the MINISFORUM UM480XT, UM690S, and UM790 Pro ultimately depends on the specific requirements and preferences of the user. The UM480XT, with its budget-friendly price and impressive performance, is a solid option for those seeking an entry-level Mini PC with reliable productivity capabilities. On the other hand, the UM690S, though slightly pricier, offers a substantial performance boost, making it an attractive choice for users looking for a more powerful computing experience within a mid-range budget. Finally, the UM790 Pro stands out as a top-tier option, delivering exceptional performance and advanced features that cater to the needs of demanding users who require high processing power and expanded connectivity options.

Regardless of the model chosen, each MINISFORUM Mini PC benefits from the innovative liquid gold heat dissipation system, ensuring efficient cooling and optimal performance even during intensive usage. Additionally, their compact designs and comprehensive connectivity options make them ideal solutions for users with limited desk space. The UM480XT, UM690S, and UM790 Pro showcase MINISFORUM's commitment to delivering cutting-edge technology at various price points without compromising on quality or functionality, thereby solidifying their position as leaders in the AMD Ryzen™ powered Mini PC market.

Overall, the UM480XT, UM690S, and UM790 Pro represent a testament to MINISFORUM's dedication to pushing the boundaries of what is possible in the realm of compact computing, catering to a diverse range of user needs and preferences with their well-rounded offerings. As technology continues to advance, MINISFORUM remains at the forefront, consistently delivering Mini PCs that combine power, efficiency, and innovative design, promising a seamless computing experience for users across various usage scenarios.

At MinixPC, you have the opportunity to purchase high-quality products at the most competitive prices in the market. For instance, the MINISFORUM UM480XT, an excellent option for those seeking a reliable and efficient PC, is available for just $299.99. If you require a more powerful system, the MINISFORUM UM690S might be the ideal fit for you, priced at $459. For those with more advanced computing needs, the MINISFORUM UM790 Pro, boasting cutting-edge features and impressive performance, can be yours for only $609. With these exceptional offerings, MinixPC stands out as a top destination for those in search of affordable yet top-notch computing solutions.


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