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

Updated September 2026

Data from Amazon and official GMKtec site.

2026 verdict

Stacked against another GMKtec mini PC, the GMKtec NucBox M2 Pro S (16GB + 1TB) comes out on top on the specs that matter for everyday speed, faster memory and double the storage of the GMKtec NucBox G3 Pro (16GB + 512GB).

Winner

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

$499.98

Buy on Amazon USA

The M2 Pro S runs an 11th Gen Core i7-1185G7 with Iris Xe graphics strong enough for three simultaneous 4K displays, while the G3 Pro's Core i3-10110U and HDMI 1.4-only outputs cap a dual-screen setup at a low refresh rate. The G3 Pro claws back ground on price and keeps a genuinely useful trick of its own, a second M.2 SATA bay alongside its main drive, matching the M2 Pro S's own dual-bay design. Both ship with 16GB of dual-channel DDR4 in upgradeable SO-DIMM slots, a metal-adjacent chassis, Windows 11 Pro and a VESA mount, so the gap is really about CPU generation and screen count rather than expandability. Buyers who want a faster processor, more storage out of the box and triple-monitor support should pick the GMKtec NucBox M2 Pro S, while anyone chasing the lowest entry price for a simple desktop should go with the GMKtec NucBox G3 Pro.

GMKtec

GMKtec NucBox G3 Pro (16GB + 512GB)

30% OFF

$319.98

$459.99

Buy on Amazon USA

Winner

GMKtec

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

$499.98

Buy on Amazon USA

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Feature	GMKtec NucBox G3 Pro (16GB + 512GB)	GMKtec NucBox M2 Pro S (16GB + 1TB)	Winner
Price	$319.98	$499.98	GMKtec NucBox G3 Pro (16GB + 512GB)
Memory Speed	2666 MHz	3200 MT/s	GMKtec NucBox M2 Pro S (16GB + 1TB)
Storage Capacity	512 GB	1 TB	GMKtec NucBox M2 Pro S (16GB + 1TB)
CPU Model	Intel Core i3-10110U	Intel Core i7-1185G7	Different strengths
GPU Model	Intel UHD Graphics (up to 1000 MHz)	Intel Iris Xe Graphics G7 (96 EUs, 1.35 GHz)	Different strengths
Rating	4.4	4.4	Tie
Warranty	1 year	1 year	Tie
Memory Configuration	Dual-channel	Dual-channel	Tie
Memory Type	DDR4	DDR4	Tie
Memory Capacity	16 GB	16 GB	Tie

GMKtec

GMKtec NucBox G3 Pro (16GB + 512GB)

30% OFF

$319.98

$459.99

Buy on Amazon USA

+ Price: $319.98
- Memory Speed: 2666 MHz vs 3200 MT/s
- Storage Capacity: 512 GB vs 1 TB

Winner

GMKtec

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

$499.98

Buy on Amazon USA

+ Memory Speed: 3200 MT/s
+ Storage Capacity: 1 TB
- Price: $499.98 vs $319.98

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) is the stronger buy, with faster memory speed and double the storage capacity of the GMKtec NucBox G3 Pro (16GB + 512GB). The G3 Pro's only advantage in the comparison 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 uses a 10th Gen Intel Core i3-10110U limited to dual HDMI 1.4 outputs, while the M2 Pro S uses an 11th Gen Core i7-1185G7 with Iris Xe graphics that drives three 4K displays through dual HDMI 2.0 plus a USB-C DisplayPort output.

How much storage does each one ship with?

The GMKtec NucBox M2 Pro S ships with 1TB, twice the 512GB in the GMKtec NucBox G3 Pro. Both use a similar dual-bay layout, one faster M.2 2280 slot plus a smaller M.2 2242 SATA slot, so either can be expanded later.

Do both mini PCs support the same number of monitors?

No. The G3 Pro's two HDMI 1.4 ports only manage a dual 4K setup at 24Hz, with no DisplayPort output at all. 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 CPU.

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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