Head to head
GMKtec NucBox K8 Plus vs Minisforum UM790 Pro (2026)
K8 Plus vs UM790 Pro: OCuLink expansion and dual networks against a quieter metal case and dual USB4, compared for power users.
#8 in our rankings · Best for gaming and expansion
GMKtec NucBox K8 Plus, Ryzen 7 8845HS, 32GB, 1TB
Best for: Gamers, emulation fans, and homelab builders who want OCuLink expansion and dual wired networks.
#7 in our rankings · Best for creators
MINISFORUM Venus UM790 Pro, Ryzen 9 7940HS, 32GB, 1TB
Best for: Creators, developers, and power users who want desktop-class speed, strong integrated graphics, and serious expansion.
Our recommendation
Buy the GMKtec K8 Plus if you want an external GPU path or dual wired networks for a homelab. Buy the Minisforum UM790 Pro if you want a quieter, more refined case with dual USB4 and a faster processor for creative work. Both carry Radeon 780M graphics and 32GB of memory; the choice is about expansion style, not speed class.
Expansion philosophy
The K8 Plus bets on OCuLink, letting owners add a discrete GPU or fast external storage later, plus dual 2.5G ports for network builds. The UM790 Pro bets on USB4, with two full-speed ports for docks, monitors, and fast drives, plus dual M.2 slots with RAID support for storage-heavy users.
Processor and AI features
The UM790 Pro's Ryzen 9 7940HS is the faster chip of the pair and includes a neural processor for on-device AI features. The K8 Plus's 8845HS also includes a neural processor and matches it closely in everyday work, so the gap shows mainly in sustained creative workloads rather than office tasks.
Case, cooling, and noise
The UM790 Pro's metal case and liquid-metal cooling design run quieter under load and feel more premium on a desk. The K8 Plus's dual-fan design and larger case trade some quiet for expansion room, and its performance mode is audible where the UM790 Pro stays composed.
Choose GMKtec NucBox K8 Plus, Ryzen 7 8845HS, 32GB, 1TB if…
- You want an external GPU path through OCuLink
- You run a homelab and need dual 2.5G networks
- You want four-screen output with DisplayPort 2.1
Choose MINISFORUM Venus UM790 Pro, Ryzen 9 7940HS, 32GB, 1TB if…
- You want the quieter, more refined machine
- You need dual USB4 for docks and fast drives
- You want the faster Ryzen 9 for creative work
Spec-by-spec comparison
| Spec | GMKtec NucBox K8 Plus, Ryzen 7 8845HS, 32GB, 1TB | MINISFORUM Venus UM790 Pro, Ryzen 9 7940HS, 32GB, 1TB |
|---|---|---|
| Price tier | Premium | Premium |
| Processor | AMD Ryzen 7 8845HS, 8 cores, up to 5.1GHz | AMD Ryzen 9 7940HS, 8 cores, up to 5.2GHz |
| Graphics | AMD Radeon 780M integrated | AMD Radeon 780M integrated |
| Memory | 32GB DDR5-5600, upgradeable | 32GB DDR5-5600, upgradeable to 64GB |
| Storage | 1TB PCIe 4.0 SSD, expandable | 1TB PCIe 4.0 SSD, dual M.2 slots with RAID support |
| Connectivity | Dual 2.5G Ethernet, dual USB4, OCuLink, Wi-Fi 6, Bluetooth 5.2 | Dual USB4, Wi-Fi 6E, Bluetooth 5.3, 2.5G Ethernet |
| Best for | Gamers, emulation fans, and homelab builders who want OCuLink expansion and dual wired networks. | Creators, developers, and power users who want desktop-class speed, strong integrated graphics, and serious expansion. |
| Skip if | You want silent running at full speed, or you will never use an external GPU or a second network port. | Your workload is browsing and office apps, or you need a discrete graphics card for heavy rendering. |
Strengths and limitations
GMKtec NucBox K8 Plus, Ryzen 7 8845HS, 32GB, 1TB
Strengths
- The OCuLink port opens a path to an external graphics card later, which no other box here offers, extending the machine's gaming life.
- Dual 2.5G Ethernet ports suit homelab and firewall builds, letting one box serve two networks without extra adapters.
- Four-screen output through USB4, HDMI 2.1, and DisplayPort 2.1 covers demanding multi-monitor desks and sim setups.
Limitations
- The performance mode that unlocks full speed also raises fan noise, so silent-mode users give up some graphics headroom.
- Demanding modern games still need low settings, since even the strong 780M is integrated graphics, not a discrete card.
- The dual-fan design and larger case make it less discreet than the smaller budget boxes on a tidy desk.
MINISFORUM Venus UM790 Pro, Ryzen 9 7940HS, 32GB, 1TB
Strengths
- The Ryzen 9 7940HS with Radeon 780M graphics handles photo editing, light video work, and casual gaming far beyond budget boxes.
- Dual USB4 ports, dual HDMI 2.1, and dual M.2 slots give four-screen output and storage expansion that rivals small towers.
- The metal case and liquid-metal cooling design keep the machine composed under sustained work, with memory and SSD cooling included.
Limitations
- USB4 power delivery output is limited, so powering a monitor from the port needs care with the power budget.
- The fan is audible under sustained heavy load, which is the price of packing this much performance into a small case.
- Integrated graphics still cap serious gaming and heavy 3D rendering, where a discrete GPU machine remains the right buy.
How they fit the wider field
- GMKtec NucBox K8 Plus, Ryzen 7 8845HS, 32GB, 1TB: ranked #8 (Best for gaming and expansion) in The Best Mini PCs. Read the full GMKtec NucBox K8 Plus, Ryzen 7 8845HS, 32GB, 1TB review.
- MINISFORUM Venus UM790 Pro, Ryzen 9 7940HS, 32GB, 1TB: ranked #7 (Best for creators) in The Best Mini PCs. Read the full MINISFORUM Venus UM790 Pro, Ryzen 9 7940HS, 32GB, 1TB review.
Neither one quite right? The full rankings cover 10 picks matched to different buyers.
Made your call?
Questions, answered
Which has better graphics?
Both use the Radeon 780M, so integrated graphics performance is very close. The K8 Plus wins on future graphics through OCuLink, while the UM790 Pro wins on cooling, which helps sustained performance stay steadier.
Which is better for a home server?
The K8 Plus, slightly, because dual 2.5G ports suit firewall and router builds with separate networks. The UM790 Pro is also capable, with dual storage slots and strong processing, but it has a single wired port.
Can either replace a gaming PC?
Neither replaces a discrete GPU gaming PC for demanding titles at high settings. The K8 Plus comes closest over time, since OCuLink allows a discrete card later, while the UM790 Pro remains an integrated-graphics machine for its whole life.