Mini PCs · Head to head

Beelink SEi14 (32GB + 1TB) vs GMKtec NucBox M6 Ultra (32GB + 1TB)

Full Mini PCs comparison in 2026

Updated October 2026
Data from the official Beelink and GMKtec sites.
2026 verdict
Same 32 GB and same 1 TB, different silicon, and the Beelink SEi14 (32GB + 1TB) is the stronger machine of the two.
Beelink SEi14 (32GB + 1TB)
Winner
Beelink SEi14 (32GB + 1TB)
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Its Core Ultra 9 185H brings Intel Arc graphics, an Intel AI Boost NPU and Thunderbolt 4, and its DDR5-5600 is faster than the DDR5-4800 in the GMKtec NucBox M6 Ultra (32GB + 1TB), which pairs a six-core Ryzen 5 7640HS with Radeon 760M graphics and has no Thunderbolt. The GMKtec NucBox M6 Ultra (32GB + 1TB) answers with dual 2.5G Ethernet ports, Wi-Fi 6E and room to reach 128 GB of memory, which suits a firewall, NAS or dual-network lab. Pick the Beelink SEi14 (32GB + 1TB) for the faster platform, Thunderbolt 4 and the better owner rating, and the GMKtec NucBox M6 Ultra (32GB + 1TB) for a network-dense home lab.
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FeatureBeelink SEi14 (32GB + 1TB)GMKtec NucBox M6 Ultra (32GB + 1TB)Winner
Rating4.44.2Beelink SEi14 (32GB + 1TB)
Memory Speed5600 MT/s4800 MT/sBeelink SEi14 (32GB + 1TB)
CPU ModelIntel Core Ultra 9 185HAMD Ryzen 5 7640HSDifferent strengths
GPU ModelIntel Arc GraphicsAMD Radeon 760MDifferent strengths
Warranty1 year1 yearTie
Memory ConfigurationDual-channelDual-channelTie
Memory TypeDDR5DDR5Tie
Memory Capacity32 GB32 GBTie
Storage Capacity1 TB1 TBTie

What the differences mean

Platform

The Beelink SEi14 (32GB + 1TB) uses a Core Ultra 9 185H with Intel Arc graphics and an Intel AI Boost NPU, while the GMKtec NucBox M6 Ultra (32GB + 1TB) runs a six-core Ryzen 5 7640HS with Radeon 760M graphics. The Beelink has the newer, faster silicon and a documented NPU.

Memory speed and ceiling

The Beelink SEi14 (32GB + 1TB) runs DDR5-5600 and the GMKtec NucBox M6 Ultra (32GB + 1TB) DDR5-4800, though the GMKtec accepts up to 128 GB where the Beelink tops out at 96 GB. The Beelink is quicker today; the GMKtec can hold more later.

Connectivity

The GMKtec NucBox M6 Ultra (32GB + 1TB) pairs two 2.5G Ethernet ports with Wi-Fi 6E, ideal for a firewall or dual-network lab. The Beelink SEi14 (32GB + 1TB) has one 2.5G port and Wi-Fi 6, but adds Thunderbolt 4, which the GMKtec lacks.

Displays and expansion

The Beelink SEi14 (32GB + 1TB) drives monitors over HDMI 2.1, DisplayPort 1.4 and Thunderbolt 4; the GMKtec NucBox M6 Ultra (32GB + 1TB) uses HDMI 2.0, DisplayPort 1.4 and a USB4 port. Both leave a free M.2 bay, though the GMKtec's two slots are PCIe 3.0.

Noise

Both can get loud under sustained load, a complaint owners raise for each. The Beelink SEi14 (32GB + 1TB) draws it with a vapor chamber, and the GMKtec NucBox M6 Ultra (32GB + 1TB) with selectable 35W, 45W and 50W power modes that let you trade performance for quiet.

Which one to buy if

  • you want Thunderbolt 4 and the newest Intel platform
    Beelink SEi14 (32GB + 1TB)

    An Intel AI Boost NPU, Arc graphics and a Thunderbolt 4 port are things the GMKtec cannot offer.

  • you run a firewall, NAS or dual-network setup
    GMKtec NucBox M6 Ultra (32GB + 1TB)

    Two 2.5G Ethernet ports plus Wi-Fi 6E are the M6 Ultra's specialty.

  • you want the fastest memory and better graphics for light work
    Beelink SEi14 (32GB + 1TB)

    DDR5-5600 and Arc graphics sit above DDR5-4800 and Radeon 760M.

  • you may need more than 96 GB of memory one day
    GMKtec NucBox M6 Ultra (32GB + 1TB)

    The M6 Ultra takes up to 128 GB, where the SEi14 stops at 96 GB.

  • noise under load is a concern
    GMKtec NucBox M6 Ultra (32GB + 1TB)

    Its selectable power modes let you dial the fan down, something the SEi14 leaves to its vapor chamber alone.

What owners say

Owners of both machines reach for the same words first: fast enough for virtualisation and daily work, compact enough to tuck away, and set up with a clean Windows 11 Pro. Beelink SEi14 (32GB + 1TB) owners stress raw performance and the 32 GB of RAM as headroom for Proxmox, Plex and creative software, with fan noise under load and an odd Bluetooth complaint as their caveats. GMKtec NucBox M6 Ultra (32GB + 1TB) owners talk more about value and the dual 2.5G ports for firewalls and NAS duty, but report a run of early failures and support that blames other hardware, alongside a fan that divides opinion.

Frequently Asked Questions

Which is better overall: Beelink SEi14 (32GB + 1TB) or GMKtec NucBox M6 Ultra (32GB + 1TB)?

The Beelink SEi14 (32GB + 1TB) is the stronger, better-rounded machine: a newer Intel platform, an NPU, Thunderbolt 4, faster memory and the higher owner rating. The GMKtec NucBox M6 Ultra (32GB + 1TB) is the one to pick for a firewall or dual-network home lab.

What is the biggest difference between the Beelink SEi14 (32GB + 1TB) and the GMKtec NucBox M6 Ultra (32GB + 1TB)?

The platform and its ports. The Beelink SEi14 (32GB + 1TB) brings a Core Ultra 9 with an NPU and Thunderbolt 4, while the GMKtec NucBox M6 Ultra (32GB + 1TB) counters with a Ryzen 5, dual 2.5G Ethernet and Wi-Fi 6E.

Which is better for a home server?

For a firewall or dual-network server the GMKtec NucBox M6 Ultra (32GB + 1TB) has the edge with two 2.5G Ethernet ports. For a general virtualisation host the Beelink SEi14 (32GB + 1TB) is stronger, with a newer Intel platform, an NPU and Thunderbolt 4.

Which one has Thunderbolt?

The Beelink SEi14 (32GB + 1TB) has Thunderbolt 4. The GMKtec NucBox M6 Ultra (32GB + 1TB) does not, offering a USB4 port instead.

Who should buy the Beelink SEi14 (32GB + 1TB)?

Buyers who want the faster, better-rounded mini PC with an NPU, Thunderbolt 4 and the higher owner rating, for productivity and virtualisation.

Who should buy the GMKtec NucBox M6 Ultra (32GB + 1TB)?

Anyone building a firewall, NAS or dual-network home lab who values two 2.5G ports and a larger memory ceiling, and prefers the lower asking price.

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