Mini PCs · Head to head

Geekom IT15 (32GB + 1TB) vs GMKtec NucBox G3 Pro (16GB + 512GB)

Full Mini PCs comparison in 2026

Updated October 2026
Data from Amazon and official Geekom and GMKtec sites.
2026 verdict
As a storage-heavy home-lab build, the Geekom IT15 (32GB + 1TB) is the far more capable mini PC of this pair, with three internal drive bays and dual USB4 ports well beyond what the GMKtec NucBox G3 Pro (16GB + 512GB) offers at its price.
Geekom IT15 (32GB + 1TB)
Winner
Geekom IT15 (32GB + 1TB)

Last recorded priceOct 8, 2026$1199.00

Currently unavailable on Amazon USA
See on Amazon USA
The IT15's 16-core Core Ultra 9 285H, Arc 140T graphics and 32GB of DDR5 outrun the G3 Pro's Core i3-10110U and 16GB of DDR4 by a wide margin, and its Wi-Fi 7 leaves the G3 Pro's Wi-Fi 6 behind. The G3 Pro answers with a much lower price and genuinely dual-channel, upgradeable memory of its own. Choose the Geekom IT15 (32GB + 1TB) for a NAS-style build with real storage headroom, and the GMKtec NucBox G3 Pro (16GB + 512GB) for the cheapest complete office desktop.
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FeatureGeekom IT15 (32GB + 1TB)GMKtec NucBox G3 Pro (16GB + 512GB)Winner
Warranty3 years1 yearGeekom IT15 (32GB + 1TB)
Memory TypeDDR5DDR4Geekom IT15 (32GB + 1TB)
Memory Capacity32 GB16 GBGeekom IT15 (32GB + 1TB)
Storage Capacity1 TB512 GBGeekom IT15 (32GB + 1TB)
CPU ModelIntel Core Ultra 9 285HIntel Core i3-10110UDifferent strengths
GPU ModelIntel Arc 140T GPUIntel UHD Graphics (up to 1000 MHz)Different strengths
Rating4.44.4Tie
Memory ConfigurationDual-channelDual-channelTie

What the differences mean

Storage bays

The IT15 packs three separate bays, an NVMe slot, an M.2 SATA slot and a 2.5-inch SATA bay. The G3 Pro has two smaller M.2 bays, one fewer place to add a drive.

CPU and graphics

The IT15's 16-core Core Ultra 9 285H with Arc 140T graphics handles 1080p gaming and 4K encoding. The G3 Pro's older two-core Core i3-10110U with UHD Graphics is built for office work rather than any of that.

Memory headroom

32GB of DDR5 on the IT15 scales to 128GB, double the G3 Pro's 16GB of DDR4 capped at 64GB.

USB4 and USB-C

Two USB4 ports on the IT15 carry DisplayPort and drive external GPUs at 40Gbps. The G3 Pro has no USB-C at all, only USB-A and two HDMI 1.4 outputs.

Which one to buy if

What owners say

GMKtec NucBox G3 Pro (16GB + 512GB) owners buy it for Word and Excel, browsing and school work, and say it opens programs quickly and stays stable across months of daily use. They are also pleased the memory is genuine dual-channel DDR4 rather than a single soldered module, which many budget mini PCs skip. Their most repeated complaint is the total absence of USB-C on the machine, with every port being USB-A, and a fan that several call louder than expected once the CPU is under sustained load.

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.

  • Geekom IT15 (32GB + 1TB)
  • GMKtec NucBox G3 Pro (16GB + 512GB)

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Frequently Asked Questions

Which is better overall: Geekom IT15 (32GB + 1TB) or GMKtec NucBox G3 Pro (16GB + 512GB)?

The Geekom IT15 (32GB + 1TB) is ahead across the board, with a 16-core CPU, more memory, a third storage bay and USB4. The GMKtec NucBox G3 Pro (16GB + 512GB) wins only on price.

What is the biggest difference between the Geekom IT15 and the GMKtec NucBox G3 Pro?

Storage flexibility and CPU class. The IT15 has three internal storage bays alongside a 16-core Core Ultra 9 285H, while the G3 Pro has two smaller M.2 bays and a two-core Core i3-10110U.

Does the GMKtec NucBox G3 Pro have an NPU like the IT15?

No. The G3 Pro has no NPU at all, so it cannot accelerate on-device AI tasks in hardware. The Geekom IT15 includes an Intel AI Boost NPU, though it is modest next to AMD's Ryzen AI chips.

Who should buy the GMKtec NucBox G3 Pro?

Budget shoppers who want the cheapest usable Windows desktop and do not need extra storage bays, DDR5 memory or USB4 connectivity.

Who should buy the Geekom IT15?

Buyers building a home server or NAS-style setup who want multiple internal drive bays, four-display output and a modern Core Ultra platform.

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