Mini PCs · Head to head

GMKtec NucBox G3 Pro (16GB + 512GB) vs GMKtec NucBox M2 Pro S (16GB + 1TB)

Full Mini PCs comparison in 2026

Updated October 2026
Data from Amazon and official GMKtec site.
2026 verdict
Set the GMKtec NucBox G3 Pro (16GB + 512GB) against its stablemate and the GMKtec NucBox M2 Pro S (16GB + 1TB) pulls ahead on the specs that decide everyday speed, a newer four-core processor, faster memory and double the storage.
GMKtec NucBox M2 Pro S (16GB + 1TB)
Winner
GMKtec NucBox M2 Pro S (16GB + 1TB)
$649.99

Last recorded price

Buy on Amazon USA
The G3 Pro's Core i3-10110U and HDMI 1.4-only outputs cap a dual-screen desktop at a slow refresh, where the M2 Pro S drives three 4K screens at 60Hz. The G3 Pro claws back ground on price and matches the M2 Pro S's dual-bay storage design, a free M.2 2242 SATA slot alongside its main drive. Buyers who want a faster processor, more storage from the start and a third display should pick the GMKtec NucBox M2 Pro S; anyone chasing the lowest entry price for a simple desktop should go with the GMKtec NucBox G3 Pro.
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FeatureGMKtec NucBox G3 Pro (16GB + 512GB)GMKtec NucBox M2 Pro S (16GB + 1TB)Winner
Price$309.99$649.99GMKtec NucBox G3 Pro (16GB + 512GB)
Memory Speed2666 MHz3200 MT/sGMKtec NucBox M2 Pro S (16GB + 1TB)
Storage Capacity512 GB1 TBGMKtec NucBox M2 Pro S (16GB + 1TB)
CPU ModelIntel Core i3-10110UIntel Core i7-1185G7Different strengths
GPU ModelIntel UHD Graphics (up to 1000 MHz)Intel Iris Xe Graphics G7 (96 EUs, 1.35 GHz)Different strengths
Rating4.44.4Tie
Warranty1 year1 yearTie
Memory ConfigurationDual-channelDual-channelTie
Memory TypeDDR4DDR4Tie
Memory Capacity16 GB16 GBTie

What the differences mean

Processor generation

The G3 Pro runs a 10th Gen Intel Core i3-10110U (dual-core, four threads), while the M2 Pro S runs an 11th Gen Core i7-1185G7 (four cores, eight threads), a real gap for anything beyond a single task at a time.

Display refresh at dual 4K

The G3 Pro's two HDMI 1.4 ports manage dual 4K only at 24Hz, a refresh rate that shows in scrolling and cursor movement. The M2 Pro S's HDMI 2.0 ports run dual 4K at 60Hz and add a USB-C DisplayPort output for a third screen.

Storage capacity

512GB on the G3 Pro against 1TB on the M2 Pro S, both spread across a similar main NVMe bay plus a free M.2 2242 SATA slot for a second drive.

USB-C

The M2 Pro S has a USB-C port carrying DisplayPort video. The G3 Pro has no USB-C at all, so every accessory that expects it needs an adapter.

Which one to buy if

What owners say

GMKtec NucBox G3 Pro (16GB + 512GB) owners consistently praise how quickly it goes from box to working desktop, with Windows 11 Pro ready in minutes and no trial software to remove. Several who opened the case are pleasantly surprised the 16GB ships as two real SO-DIMM modules in dual channel rather than the single stick some budget boxes use, and the free second M.2 slot for extra storage gets specific mentions. The complaints run the other way: every port is USB Type-A with no USB-C at all, the fan becomes audible under sustained load despite the spec sheet's quiet rating, and a small number of owners report early faults, from a dead display output to a faulty internal Bluetooth radio.

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 M2 Pro S (16GB + 1TB)

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Frequently Asked Questions

Which is better overall: GMKtec NucBox G3 Pro (16GB + 512GB) or GMKtec NucBox M2 Pro S (16GB + 1TB)?

The GMKtec NucBox M2 Pro S (16GB + 1TB), with a newer four-core processor, faster memory and double the storage of the GMKtec NucBox G3 Pro (16GB + 512GB). The G3 Pro's only advantage is a lower price.

What is the biggest difference between the GMKtec NucBox G3 Pro and the GMKtec NucBox M2 Pro S?

CPU generation and display output. The G3 Pro's 10th Gen Core i3 is limited to dual HDMI 1.4 at 24Hz, while the M2 Pro S's 11th Gen Core i7 drives three 4K 60Hz displays through dual HDMI 2.0 plus USB-C.

Can either mini PC's storage be expanded?

Yes, both the same way. Each uses a main M.2 2280 slot plus a free M.2 2242 SATA slot, so a second drive can be added to either without removing the first.

Do both mini PCs support the same number of monitors?

No. The G3 Pro's two HDMI 1.4 ports only manage dual 4K at 24Hz, with no DisplayPort output. The M2 Pro S adds a USB-C port carrying DisplayPort video, so it drives three 4K 60Hz displays.

Who should buy the GMKtec NucBox G3 Pro?

Budget-focused buyers who want the cheapest complete Windows 11 Pro desktop in the GMKtec range and do not need a third monitor or the fastest processor.

Who should buy the GMKtec NucBox M2 Pro S?

Buyers who want a noticeably faster processor, more storage from the start, and the ability to run three displays at once without adding a dock.

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