Mini PCs · Head to head

Geekom A9 Mega (128GB + 2TB) vs GMKtec NucBox M5 Ultra (32GB + 512GB)

Full Mini PCs comparison in 2026

Updated October 2026
Data from the official Geekom and GMKtec sites.
2026 verdict
Put the two side by side and the Geekom A9 Mega (128GB + 2TB) takes this matchup, above all on the silicon that drives graphics and AI.
Geekom A9 Mega (128GB + 2TB)
Winner
Geekom A9 Mega (128GB + 2TB)
$3799.00$3999.005% OFF
Buy on Amazon USA
Its Radeon 8060S draws on 128 GB of LPDDR5X at 8000 MT/s, it ships 2 TB across two PCIe Gen4x4 slots, and it is covered for three years. The GMKtec NucBox M5 Ultra (32GB + 512GB) is built to a different brief: a quiet Ryzen 7 7730U with dual 2.5 Gb Ethernet that makes a cheap pfSense, Proxmox or Linux desktop node, with 32 GB of upgradeable DDR4 and a 512 GB PCIe 3.0 drive. Choose the Geekom A9 Mega (128GB + 2TB) when local AI, rendering or a long-lived workstation is the point, and the GMKtec NucBox M5 Ultra (32GB + 512GB) when the budget and the dual network ports come first.
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FeatureGeekom A9 Mega (128GB + 2TB)GMKtec NucBox M5 Ultra (32GB + 512GB)Winner
Price$3799.00$419.99GMKtec NucBox M5 Ultra (32GB + 512GB)
Rating4.64.3Geekom A9 Mega (128GB + 2TB)
Warranty3 years1 yearGeekom A9 Mega (128GB + 2TB)
Memory TypeLPDDR5XDDR4Geekom A9 Mega (128GB + 2TB)
Memory Speed8000 MT/s3200 MT/sGeekom A9 Mega (128GB + 2TB)
Memory Capacity128 GB32 GBGeekom A9 Mega (128GB + 2TB)
Storage Capacity2 TB512 GBGeekom A9 Mega (128GB + 2TB)
CPU ModelAMD Ryzen AI Max+ 395AMD Ryzen 7 7730UDifferent strengths
Memory ConfigurationSoldered (non-upgradeable)Dual-channelDifferent strengths
GPU ModelAMD Radeon 8060S GraphicsAMD Radeon Graphics (8 cores, up to 2000 MHz)Different strengths

What the differences mean

Graphics and memory class

The Geekom A9 Mega (128GB + 2TB) pairs a Radeon 8060S with 128 GB of LPDDR5X, a pool shared with the GPU. The GMKtec NucBox M5 Ultra (32GB + 512GB) runs an eight-core Radeon integrated GPU on 32 GB of DDR4, so the gap is one of class, not degree.

Memory upgrade path

The GMKtec NucBox M5 Ultra (32GB + 512GB) uses two SODIMM slots and can be taken to 64 GB later. The Geekom A9 Mega (128GB + 2TB) starts at 128 GB but the LPDDR5X is soldered, so that figure is the ceiling for the life of the machine.

Storage

The Geekom A9 Mega (128GB + 2TB) arrives with 2 TB across two M.2 2280 PCIe Gen4x4 slots and supports RAID. The GMKtec NucBox M5 Ultra (32GB + 512GB) ships a single 512 GB PCIe 3.0 SSD, so a larger library means adding or replacing a drive.

Warranty

The Geekom A9 Mega (128GB + 2TB) is backed for three years. The GMKtec NucBox M5 Ultra (32GB + 512GB) carries one year, which owners themselves flag as short for the category.

Networking and platform

Both have dual 2.5 Gb Ethernet, but the Geekom A9 Mega (128GB + 2TB) adds Wi-Fi 7, Bluetooth 5.4 and two USB4 ports. The GMKtec NucBox M5 Ultra (32GB + 512GB) has Wi-Fi 6E and no USB4, so its wired side matches while its expansion does not.

Which one to buy if

What owners say

GMKtec NucBox M5 Ultra (32GB + 512GB) owners keep coming back to performance per watt: the 7730U does more than they expected for the power it draws, and several benchmark it against older desktop i7 machines. The dual 2.5 Gb Ethernet ports are the other draw, with owners running pfSense, Proxmox and Kubernetes on it, and Linux support earns specific praise for clean installs of Fedora and Mint. Silence and size follow, and GMKtec support is described as unusually responsive for the price. Their complaints are the deliberate compromises: DDR4 and PCIe 3.0 storage, integrated graphics that run hot under sustained gaming, no USB4 or SD slot, a one-year warranty, and one report of a sleep-wake bug that forced a hard reset.

Frequently Asked Questions

Which is better overall: Geekom A9 Mega (128GB + 2TB) or GMKtec NucBox M5 Ultra (32GB + 512GB)?

The Geekom A9 Mega (128GB + 2TB) is the more capable machine, with a Radeon 8060S, 128 GB of shared memory, 2 TB of Gen4 storage and a three-year warranty. The GMKtec NucBox M5 Ultra (32GB + 512GB) is the better value for home-lab and light desktop duty.

What is the biggest difference between the Geekom A9 Mega (128GB + 2TB) and the GMKtec NucBox M5 Ultra (32GB + 512GB)?

Graphics and memory. The Geekom A9 Mega (128GB + 2TB) pairs a Radeon 8060S with 128 GB of LPDDR5X, while the GMKtec NucBox M5 Ultra (32GB + 512GB) uses integrated Radeon graphics on 32 GB of DDR4.

Can you upgrade the memory in either machine?

Only in the GMKtec NucBox M5 Ultra (32GB + 512GB), which has two SODIMM slots and takes up to 64 GB of DDR4. The Geekom A9 Mega (128GB + 2TB) has soldered LPDDR5X, so its 128 GB is permanent.

Does the GMKtec NucBox M5 Ultra (32GB + 512GB) have USB4 or Thunderbolt?

No. It offers USB 3.2 ports only, including a Gen 2 Type-C, and no USB4 or Thunderbolt. The Geekom A9 Mega (128GB + 2TB) has two USB4 Type-C ports at 40Gbps with DisplayPort 2.1.

Who should buy the Geekom A9 Mega (128GB + 2TB)?

Buyers who need a large unified memory pool feeding capable graphics for local AI, 3D rendering or video work, and who want a small, quiet alternative to a tower with a discrete card.

Who should buy the GMKtec NucBox M5 Ultra (32GB + 512GB)?

Home-lab builders running Proxmox, pfSense or Kubernetes, Linux users who want a quiet always-on node, and budget buyers who value dual 2.5 Gb Ethernet and upgradeable memory over top-tier graphics.

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