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GMKtec NucBox G3 Pro (16GB + 512GB) vs GMKtec NucBox M7 Ultra (32GB + 512GB)

Full Mini PCs comparison in 2026

Updated October 2026
Data from Amazon and official GMKtec site.
2026 verdict
The GMKtec NucBox M7 Ultra (32GB + 512GB) is the faster machine of these two GMKtec mini PCs, and its Ryzen chip, DDR5 memory and USB4 ports make the difference clear.
GMKtec NucBox M7 Ultra (32GB + 512GB)
Winner
GMKtec NucBox M7 Ultra (32GB + 512GB)
$559.99$679.9918% OFFPrime exclusive deal

Last recorded price

Buy on Amazon USA
It runs an AMD Ryzen 7 PRO 6850U with Radeon 680M graphics, 32 GB of DDR5-4800 in two SO-DIMM slots and two M.2 2280 PCIe 4.0 slots, plus two USB4 Type-C ports, DisplayPort 2.0, HDMI 2.1 and dual 2.5G Ethernet. The GMKtec NucBox G3 Pro (16GB + 512GB) is the budget option: a Core i3-10110U with 16 GB of DDR4, a 512 GB drive, one 2.5G port and no USB-C at all, for less money. Buy the GMKtec NucBox G3 Pro (16GB + 512GB) for office work on a budget, and the GMKtec NucBox M7 Ultra (32GB + 512GB) for virtualization, home server duty or a quiet desktop that lasts.
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FeatureGMKtec NucBox G3 Pro (16GB + 512GB)GMKtec NucBox M7 Ultra (32GB + 512GB)Winner
Price$309.99$559.99GMKtec NucBox G3 Pro (16GB + 512GB)
Rating4.44.5GMKtec NucBox M7 Ultra (32GB + 512GB)
Memory TypeDDR4DDR5GMKtec NucBox M7 Ultra (32GB + 512GB)
Memory Speed2666 MHz4800 MT/sGMKtec NucBox M7 Ultra (32GB + 512GB)
Memory Capacity16 GB32 GBGMKtec NucBox M7 Ultra (32GB + 512GB)
GPU ModelIntel UHD Graphics (up to 1000 MHz)AMD Radeon 680M (12 cores, 2200 MHz)GMKtec NucBox M7 Ultra (32GB + 512GB)
CPU ModelIntel Core i3-10110UAMD Ryzen 7 PRO 6850UDifferent strengths
Warranty1 year1 yearTie
Memory ConfigurationDual-channelDual-channelTie
Storage Capacity512 GB512 GBTie

What the differences mean

Processor class

The GMKtec NucBox M7 Ultra (32GB + 512GB) uses an eight-core AMD Ryzen 7 PRO 6850U, and the GMKtec NucBox G3 Pro (16GB + 512GB) a two-core Intel Core i3-10110U, two different tiers of chip.

Memory

The GMKtec NucBox M7 Ultra (32GB + 512GB) runs 32 GB of DDR5-4800 and the GMKtec NucBox G3 Pro (16GB + 512GB) 16 GB of DDR4-2666, both dual-channel in two slots that take memory to 64 GB.

Graphics

The GMKtec NucBox M7 Ultra (32GB + 512GB) pairs the Ryzen with Radeon 680M graphics, and the GMKtec NucBox G3 Pro (16GB + 512GB) relies on Intel UHD Graphics, a real gap for light gaming and GPU-accelerated work.

Ports and display

The GMKtec NucBox M7 Ultra (32GB + 512GB) has two USB4 Type-C ports, DisplayPort 2.0, HDMI 2.1 and twin 2.5G Ethernet, while the GMKtec NucBox G3 Pro (16GB + 512GB) has no USB-C, HDMI 1.4 and one 2.5G port.

Build and power

The GMKtec NucBox G3 Pro (16GB + 512GB) is a 280 g plastic box on a 36 W adapter, and the GMKtec NucBox M7 Ultra (32GB + 512GB) is a 637 g aluminum chassis on a 120 W adapter.

External GPU

The GMKtec NucBox M7 Ultra (32GB + 512GB) has a front OCuLink port for an external GPU, and the GMKtec NucBox G3 Pro (16GB + 512GB) has no such option.

Which one to buy if

What owners say

Owners of both GMKtec boxes value the tiny footprint and the Windows 11 Pro licence, then they divide by budget. GMKtec NucBox G3 Pro (16GB + 512GB) owners describe a palm-sized office PC that handles Word, browsing and 4K streaming, praise the dual-channel 16 GB it can grow to 64 GB and the free M.2 slot, and complain about no USB-C, HDMI 1.4 capping dual 4K at 24 Hz and a fan that is audible under load. GMKtec NucBox M7 Ultra (32GB + 512GB) owners single out how quiet it stays while multitasking, the front OCuLink port for an external GPU and the two USB4 ports, with a rare Windows activation hiccup on first boot as the main annoyance.

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.

  • GMKtec NucBox G3 Pro (16GB + 512GB)
  • GMKtec NucBox M7 Ultra (32GB + 512GB)

Loading price history...

Frequently Asked Questions

Which is better: GMKtec NucBox G3 Pro (16GB + 512GB) or GMKtec NucBox M7 Ultra (32GB + 512GB)?

The GMKtec NucBox M7 Ultra (32GB + 512GB) is the faster, more expandable machine, with a Ryzen 7, 32 GB of DDR5, USB4 and an OCuLink port. The GMKtec NucBox G3 Pro (16GB + 512GB) is the value pick for office work and browsing.

What is the biggest difference between the GMKtec NucBox G3 Pro (16GB + 512GB) and the GMKtec NucBox M7 Ultra (32GB + 512GB)?

The platform. The GMKtec NucBox M7 Ultra (32GB + 512GB) uses a Ryzen 7 PRO with Radeon graphics, DDR5 memory and USB4 ports, while the GMKtec NucBox G3 Pro (16GB + 512GB) is a Core i3 with DDR4, HDMI 1.4 and no USB-C.

Does the GMKtec NucBox M7 Ultra (32GB + 512GB) have USB-C?

Yes. The GMKtec NucBox M7 Ultra (32GB + 512GB) has two USB4 Type-C ports that carry DisplayPort and power delivery, where the GMKtec NucBox G3 Pro (16GB + 512GB) has none.

Does the GMKtec NucBox G3 Pro (16GB + 512GB) have USB-C?

No. Every USB port on the GMKtec NucBox G3 Pro (16GB + 512GB) is Type-A, so a USB-C dock or device needs an adapter.

Which is better for gaming, the GMKtec NucBox G3 Pro (16GB + 512GB) or the GMKtec NucBox M7 Ultra (32GB + 512GB)?

The GMKtec NucBox M7 Ultra (32GB + 512GB), whose Radeon 680M graphics handle lighter games. Both are modest for serious gaming, and the M7 Ultra is the one that can add an external GPU through its OCuLink port.

Who should buy the GMKtec NucBox G3 Pro (16GB + 512GB), and who should buy the GMKtec NucBox M7 Ultra (32GB + 512GB)?

Buy the GMKtec NucBox G3 Pro (16GB + 512GB) for office work, streaming and a kids' PC on a budget. Buy the GMKtec NucBox M7 Ultra (32GB + 512GB) for virtualization, a home lab or a quiet desktop with modern ports.

Is the GMKtec NucBox M7 Ultra (32GB + 512GB) the same as the M6 Ultra?

No. This page compares the GMKtec NucBox G3 Pro (16GB + 512GB) with the GMKtec NucBox M7 Ultra (32GB + 512GB). The M6 Ultra is a different model and is not part of this comparison.

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