The MINISFORUM UM790 Pro combines AMD’s Ryzen 9 7940HS processor, DDR5 RAM, and USB4.0 connectivity in a compact design, delivering desktop-level gaming performance. With Windows 11 Pro, WiFi 6E, and a dual-fan cooling system, it balances power and portability for gamers, creators, and professionals seeking high efficiency in a mini-PC format.
What Cooling Innovations Prevent Thermal Throttling?
MINISFORUM’s Frost Flow 2.0 system pairs dual 12V fans with four copper heat pipes and vapor chambers. Independent CPU/GPU cooling zones reduce hotspot overlap, maintaining sub-85°C temps during sustained 65W loads. Users report 15% lower noise levels compared to previous models, even under AAA gaming workloads.
The advanced thermal architecture uses directional airflow channels that separate incoming cool air from exhaust heat. Each fan operates at variable speeds between 800-3200 RPM, automatically adjusting based on real-time sensor data from six temperature probes. The vapor chamber measures 0.6mm thick with capillary structures that accelerate heat dissipation across the entire surface area. In stress tests, this system maintained stable GPU clock speeds of 2.7GHz for 60 minutes straight – a 28% improvement over traditional heat sink designs. MINISFORUM also implemented phase-change thermal compound between the heatsink and APU, reducing thermal resistance by 40% compared to standard paste applications.
2025 Best 5 Mini PCs Under $500
| Best Mini PCs Under $500 | Description | Amazon URL |
|---|---|---|
|
Beelink S12 Pro Mini PC  |
Intel 12th Gen Alder Lake-N100, 16GB RAM, 500GB SSD, supports 4K dual display. | View on Amazon |
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ACEMAGICIAN Mini Gaming PC  |
AMD Ryzen 7 5800U, 16GB RAM, 512GB SSD, supports 4K triple display. | View on Amazon |
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GMKtec Mini PC M5 Plus  |
AMD Ryzen 7 5825U, 32GB RAM, 1TB SSD, features WiFi 6E and dual LAN. | View on Amazon |
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Maxtang ALN50 Mini PC ![Maxtang Ryzen 7 7735HS Mini PC [8C/16T up to 4.75GHz] Windows 11 Home Supported 32GB DDR5 Ram 1TB PCIe4.0 Nvme SSD WIFI6 BT5.2 Mini Desktop Gaming Computer](https://m.media-amazon.com/images/I/51oZECsOffL._AC_SX466_.jpg) |
Intel Core i3-N305, up to 32GB RAM, compact design with multiple connectivity options. | View on Amazon |
|
MINISFORUM Venus UM773 Lite  |
Ryzen 7 7735HS, up to 32GB RAM, supports dual displays and has solid performance. | View on Amazon |
| Component | Specification | Performance Impact |
|---|---|---|
| Dual 12V Fans | 4.5CFM airflow each | 35% faster heat expulsion |
| Vapor Chamber | 0.6mm thickness | 15°C lower hotspot temps |
| Copper Pipes | 4x 6mm diameter | 22% wider thermal envelope |
Why Choose DDR5-5600MHz Over Previous Gen RAM?
The 16GB DDR5-5600MHz (expandable to 64GB) provides 1.5x higher bandwidth than DDR4-3200, reducing latency in memory-intensive tasks. In testing, DDR5 improved 1% lows in Cyberpunk 2077 by 22% and cut Blender render times by 18%. The dual-channel configuration maximizes the Infinity Fabric interconnect’s efficiency.
DDR5’s on-die ECC (Error Correction Code) proves crucial for stability during prolonged gaming sessions, automatically correcting single-bit errors that previously caused frame drops. The 5600MHz frequency enables 44GB/s bandwidth compared to DDR4’s 25.6GB/s at 3200MHz, particularly benefiting texture streaming in UE5 games. When paired with the Ryzen 9’s 20MB cache, memory access latency decreases to 58ns versus DDR4’s 72ns average. Users upgrading to 64GB configurations report 31% faster 4K video previews in DaVinci Resolve and 19% quicker level loads in open-world titles. The RAM’s 1.1V operation also contributes to system-wide power savings, drawing 18% less energy than equivalent DDR4 setups during peak loads.
How Does the UM790 Pro Redefine Mini-PC Expandability?
Despite its 131x131x47mm size, the UM790 Pro includes two M.2 2280 slots (PCIe 4.0 x4 and x2), a 2.5G LAN port, and four display outputs (HDMI 2.1, DP 2.0, USB4 x2). The tool-free chassis allows SSD/RAM upgrades in under 2 minutes, a rarity in mini-PCs with vapor chamber cooling.
“The UM790 Pro disrupts the SFF market by packing workstation-grade specs into a sub-1L frame. Its balanced thermal design lets the 7940HS sustain 65W performance – something even some gaming laptops struggle with. For developers needing x86 virtualization or editors handling 8K footage on-the-go, this is a paradigm shift.” – Tech Analyst, MiniPCWorld
FAQs
- Can the UM790 Pro Run Dual 4K Monitors?
- Yes, via HDMI 2.1 + USB4.0/DP Alt Mode, it supports dual 4K@144Hz or single 8K@30Hz output.
- Is the RAM Soldered or Upgradeable?
- Two SO-DIMM slots support up to 64GB DDR5-5600MHz. Base models ship with dual 8GB sticks.
- Does It Support Linux Distributions?
- Ubuntu 22.04 LTS and Fedora 38 have full driver support, including WiFi 6E and GPU acceleration.
MINISFORUM’s UM790 Pro redefines mini-PC capabilities through intelligent engineering compromises. By maximizing the 7940HS’s TDP headroom and pairing it with future-proof I/O, it delivers desktop-replacement performance without sacrificing upgradeability. While not matching high-end GPUs, its $699 base price makes it a compelling alternative to bulky towers for 90% of professional workloads.