MINISFORUM UM790 Pro Mini PC - Compact 4K Ready Mini PC

In this review the MINISFORUM UM790 Pro Mini PC stands out as a compact, high-performance desktop replacement aimed at power users who need a small footprint machine without compromising on CPU or GPU capability. The single biggest reason to buy is its combination of an AMD Ryzen 9 7940HS processor and Radeon 780M graphics in a mini form factor, which makes it suitable for demanding multitasking, 4K media playback and light-to-moderate content creation while remaining quiet and space-efficient.

Key Features

• Processor: The Ryzen 9 7940HS 8-core, 16-thread CPU delivers fast single-core and multi-threaded performance for productivity and creative workloads.
• Graphics: Radeon 780M with RDNA 3 design provides smooth 4K video playback and respectable frame rates for less demanding games and GPU-accelerated tasks.
• Display Support: Dual HDMI and dual USB4 outputs let the unit drive up to four monitors simultaneously for expanded desktop or presentation setups.
• Cooling: Cold Wave 2.0 liquid metal plus active cooling for memory and SSD keeps sustained performance stable with relatively low noise.
• Memory & Storage: Ships with DDR5 memory and a PCIe 4.0 NVMe SSD with room to expand both RAM and storage for heavier multitasking and larger media libraries.
• Small Footprint: The compact chassis saves desk space and moves easily between offices or meeting rooms while retaining desktop-class ports.

Who It's For

The UM790 Pro is ideal for professionals who need a quiet, compact workstation that can drive multiple high-resolution displays and handle demanding office work, video playback, and some content creation. Remote workers, business users, and small studio owners will appreciate the balance of CPU power and integrated RDNA 3 graphics.

It is less suited to users who require a full-sized gaming rig with high-end discrete graphics or those who need ultra-specialized expansion cards; while the integrated Radeon 780M is capable, hardcore gamers and workstation users with discrete GPU requirements should look elsewhere.

Pros & Cons

Pros

• Excellent CPU performance from the Ryzen 9 7940HS for multitasking and productivity.
• Strong integrated graphics for a mini PC, able to play 4K video without frame drops according to users.
• Quiet operation and effective Cold Wave 2.0 cooling for sustained workloads.
• Multiple display outputs including USB4 for 8K@60Hz capability on a single cable.

Cons

• Some users report mixed results with USB port compatibility, so dongles or adapters may be needed in specific setups.
• Not a substitute for a discrete GPU solution for high-end gaming or GPU-intensive professional rendering.

Specifications

Processor	AMD Ryzen 9 7940HS (8C/16T, up to 5.2GHz)
Graphics	AMD Radeon 780M (RDNA 3 integrated)
Memory	DDR5 up to 64GB (16GBx2 shown, expandable per slots)
Storage	1TB PCIe 4.0 NVMe SSD (supports additional PCIe 4.0 slot)
Video Outputs	2x HDMI 4K@60Hz, 2x USB4 8K@60Hz
Cooling	Cold Wave 2.0 with liquid metal + active cooling for memory/SSD

Our Verdict

The MINISFORUM UM790 Pro is a strong choice for anyone wanting a compact desktop that delivers near-desktop CPU performance and capable integrated graphics in a small, quiet package. It represents good value for professionals and multimedia users who need multiple displays and fast storage, while those needing a discrete GPU for serious gaming or heavy rendering should consider a different platform.

Frequently Asked Questions

Can the UM790 Pro drive four monitors?
Yes, the unit supports four displays via 2x HDMI and 2x USB4 outputs, including 4K and up to 8K on USB4 where supported.

Is the RAM and storage user-upgradeable?
Yes, the system uses DDR5 SODIMM slots and PCIe 4.0 NVMe slots so both memory and SSD capacity can be expanded.

Is it noisy under load?
Most users report quiet operation thanks to the Cold Wave 2.0 cooling, though fan activity increases under sustained heavy loads.