Updated October 2026
Data from Amazon and official Geekom and GMKtec sites.
2026 verdict
RAM already fitted is the difference a homelab notices, and the GMKtec NucBox M5 Ultra (32GB + 512GB) is the mini PC that ships with 32 GB.
It is the more affordable of the two, with an eight-core Ryzen 7 7730U, two 2.5G Ethernet ports and Wi-Fi 6E. The Geekom A5 Pro 2026 Edition (16GB + 1TB) counters with a 1 TB SSD, a three-year warranty, an SD reader and four display outputs from two HDMI 2.0 ports and two USB-C ports. Both use DDR4 and Windows 11 Pro, and neither has USB4 or Thunderbolt. The Geekom starts at 16 GB. The GMKtec does not ask you to add RAM first.
vs
Winner
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| Feature | Geekom A5 Pro 2026 Edition (16GB + 1TB) | GMKtec NucBox M5 Ultra (32GB + 512GB) | Winner |
|---|---|---|---|
| Price | $569.00 | $559.99 | GMKtec NucBox M5 Ultra (32GB + 512GB) |
| Warranty | 3 years | 1 year | Geekom A5 Pro 2026 Edition (16GB + 1TB) |
| Memory Capacity | 16 GB | 32 GB | GMKtec NucBox M5 Ultra (32GB + 512GB) |
| Storage Capacity | 1 TB | 512 GB | Geekom A5 Pro 2026 Edition (16GB + 1TB) |
| CPU Model | AMD Ryzen 5 7530U | AMD Ryzen 7 7730U | Different strengths |
| GPU Model | AMD Radeon Vega 7 | AMD Radeon Graphics (8 cores, up to 2000 MHz) | Different strengths |
| Rating | 4.3 | 4.3 | Tie |
| Memory Configuration | Dual-channel | Dual-channel | Tie |
| Memory Type | DDR4 | DDR4 | Tie |
What the differences mean
Memory fitted today
The GMKtec NucBox M5 Ultra (32GB + 512GB) has 32 GB of dual-channel DDR4-3200. The Geekom A5 Pro 2026 Edition (16GB + 1TB) has 16 GB of dual-channel DDR4. Both can reach 64 GB. For a Proxmox node or a pile of browser tabs, the GMKtec is ready. The Geekom's memory speed is not published, so the fitted amount is the comparison, not a clock.
Storage and warranty
The Geekom A5 Pro 2026 Edition (16GB + 1TB) ships a 1 TB PCIe 3.0 SSD, lists two M.2 slots and is covered for three years. The GMKtec NucBox M5 Ultra (32GB + 512GB) ships 512 GB on PCIe 3.0, with two M.2 2280 bays, and is covered for one year. If the library is large, the Geekom wins before you buy another drive. If you were going to add a drive anyway, the warranty is the longer gap.
Ethernet
The GMKtec NucBox M5 Ultra (32GB + 512GB) has two 2.5G Ethernet ports. The Geekom A5 Pro 2026 Edition (16GB + 1TB) has one 2.5G port. A desktop does not need the second port. A firewall, a router or a virtualisation host often does, which is the job owners give the GMKtec.
Displays and extras
The Geekom A5 Pro 2026 Edition (16GB + 1TB) drives four displays from two HDMI 2.0 ports and two USB-C ports, and it has an SD reader and a Kensington lock. The GMKtec NucBox M5 Ultra (32GB + 512GB) lists HDMI, DisplayPort and USB-C for three displays, and it has no SD reader. Its Kensington lock is not documented. Neither machine has USB4. The Geekom also includes a VESA mount, and so does the GMKtec.
Which one to buy if
- you want 32 GB fitted and two 2.5G ports
The GMKtec NucBox M5 Ultra (32GB + 512GB) has both, on an eight-core Ryzen 7 7730U, which is the homelab layout.
- you want a 1 TB drive and a three-year warranty
The Geekom A5 Pro 2026 Edition (16GB + 1TB) ships 1 TB and is covered for three years. The M5 Ultra ships 512 GB and one year.
- you are building a quiet firewall or Proxmox node
Owners use the GMKtec NucBox M5 Ultra (32GB + 512GB) that way because of the dual 2.5G ports and the 32 GB already installed.
- you want four displays and an SD card reader
The Geekom A5 Pro 2026 Edition (16GB + 1TB) has two HDMI 2.0 ports, two USB-C outputs and an SD reader. The M5 Ultra does not list an SD slot.
$569.00
- + Warranty: 3 years
- + Storage Capacity: 1 TB
- - Price: $569.00 vs $559.99
- - Memory Capacity: 16 GB vs 32 GB
Winner
$559.99
- + Price: $559.99
- + Memory Capacity: 32 GB
- - Warranty: 1 year vs 3 years
- - Storage Capacity: 512 GB vs 1 TB
What owners say
What GMKtec NucBox M5 Ultra (32GB + 512GB) owners single out is a small computer they are happy to leave on. They talk about the Ryzen 7 7730U doing more than the power draw suggests, and about the dual-fan cooler staying quiet in ordinary use. Homelab owners get specific: two 2.5G ports, two M.2 slots and room to reach 64 GB are why they run virtual machines, a firewall or a Linux desktop, and support is described as quick to replace a unit. The other side of those reviews is the platform age. DDR4-3200 and PCIe 3.0 storage are named as the compromise, integrated graphics heat up in a sustained game, one sleep-wake fault was fixed by disabling sleep, and the one-year warranty is called short.
Price history compared
Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.
- Geekom A5 Pro 2026 Edition (16GB + 1TB)
- GMKtec NucBox M5 Ultra (32GB + 512GB)
Loading price history...
Frequently Asked Questions
Which is better overall: Geekom A5 Pro 2026 Edition (16GB + 1TB) or GMKtec NucBox M5 Ultra (32GB + 512GB)?
The GMKtec NucBox M5 Ultra (32GB + 512GB). It is the more affordable mini PC and it has 32 GB fitted, two 2.5G ports and an eight-core Ryzen. The Geekom A5 Pro 2026 Edition (16GB + 1TB) has the larger SSD, a three-year warranty and four display outputs.
What is the biggest difference between the A5 Pro 2026 Edition and the M5 Ultra?
32 GB and two Ethernet ports against a 1 TB drive and a longer warranty. The GMKtec NucBox M5 Ultra (32GB + 512GB) is the homelab box. The Geekom A5 Pro 2026 Edition (16GB + 1TB) is the better stocked desktop drive. Both are DDR4 Windows 11 Pro machines without USB4.
Which one has dual Ethernet, the A5 Pro 2026 or the M5 Ultra?
The GMKtec NucBox M5 Ultra (32GB + 512GB), with two 2.5G ports. The Geekom A5 Pro 2026 Edition (16GB + 1TB) has a single 2.5G port, plus Wi-Fi 6. The M5 Ultra has Wi-Fi 6E.
Do either of these mini PCs have USB4 or Thunderbolt?
No. The Geekom A5 Pro 2026 Edition (16GB + 1TB) and the GMKtec NucBox M5 Ultra (32GB + 512GB) both lack USB4 and Thunderbolt. The Geekom still has two USB-C ports that can drive displays. The M5 Ultra has a USB 3.2 Type-C port.
Who should buy the Geekom A5 Pro 2026 Edition (16GB + 1TB)?
Someone who wants a 1 TB SSD, a three-year warranty, an SD reader, a Kensington lock and four displays, and who can start at 16 GB of DDR4.
Who should buy the GMKtec NucBox M5 Ultra (32GB + 512GB)?
Someone building a firewall, a Proxmox node or a quiet desktop who wants 32 GB and two 2.5G ports now, and who will add storage if 512 GB is tight.
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