10% OFF
$269.00
$299.00
Updated October 2026
Data from the official Geekom and GMKtec sites.
2026 verdict
Twice the RAM is the whole argument, and the GMKtec NucBox G3 Pro (16GB + 512GB) is the stronger budget mini PC.
It leads on 16GB versus 8GB and on 512GB versus 256GB of storage, which is what keeps a Windows desktop usable with a browser full of tabs. The Geekom Mini Air12 (Pentium 7505 8GB + 256GB) is cheaper, carries a three-year warranty against one year, and stays the lighter Pentium Gold 7505 option. Take the G3 Pro for everyday office work; take the Mini Air12 when the brief is kiosk, classroom or a VESA-mounted terminal that barely needs to multitask.
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The biggest differences
Where these two are furthest apart, and by how much.
- Warranty3×Geekom Mini Air12 (Pentium 7505 8GB + 256GB)3 years vs 1 year
- Memory Capacity2×GMKtec NucBox G3 Pro (16GB + 512GB)16 GB vs 8 GB
- Storage Capacity2×GMKtec NucBox G3 Pro (16GB + 512GB)512 GB vs 256 GB
| Feature | Geekom Mini Air12 (Pentium 7505 8GB + 256GB) | GMKtec NucBox G3 Pro (16GB + 512GB) | Winner |
|---|---|---|---|
| Price | $269.00 | $309.99 | Geekom Mini Air12 (Pentium 7505 8GB + 256GB) |
| Rating | 4.3 | 4.4 | GMKtec NucBox G3 Pro (16GB + 512GB) |
| Warranty | 3 years | 1 year | Geekom Mini Air12 (Pentium 7505 8GB + 256GB) |
| Memory Capacity | 8 GB | 16 GB | GMKtec NucBox G3 Pro (16GB + 512GB) |
| Storage Capacity | 256 GB | 512 GB | GMKtec NucBox G3 Pro (16GB + 512GB) |
| CPU Model | Intel Pentium Gold 7505 | Intel Core i3-10110U | Different strengths |
| GPU Model | Intel UHD Graphics (48 EUs) | Intel UHD Graphics (up to 1000 MHz) | Different strengths |
| Memory Configuration | Dual-channel | Dual-channel | Tie |
| Memory Type | DDR4 | DDR4 | Tie |
10% OFF
$269.00
$299.00
- + Price: $269.00
- + Warranty: 3 years
- - Rating: 4.3 vs 4.4
- - Memory Capacity: 8 GB vs 16 GB
Winner
33% OFF
Prime exclusive deal$309.99
$459.99
- + Rating: 4.4
- + Memory Capacity: 16 GB
- + Storage Capacity: 512 GB
- - Price: $309.99 vs $269.00
- - Warranty: 1 year vs 3 years
Frequently Asked Questions
Which is better overall: Geekom Mini Air12 (Pentium 7505 8GB + 256GB) or GMKtec NucBox G3 Pro (16GB + 512GB)?
The GMKtec NucBox G3 Pro (16GB + 512GB) is better overall on memory capacity and storage. The Geekom Mini Air12 (Pentium 7505 8GB + 256GB) wins on price and on its 3 year warranty.
What is the biggest difference between Geekom Mini Air12 (Pentium 7505 8GB + 256GB) and GMKtec NucBox G3 Pro (16GB + 512GB)?
Configured memory and storage. The GMKtec NucBox G3 Pro (16GB + 512GB) ships 16GB of DDR4 and a 512GB SSD. The Geekom Mini Air12 (Pentium 7505 8GB + 256GB) ships 8GB of DDR4 and a 256GB SSD.
Can you expand RAM on both of these mini PCs?
Yes. The GMKtec NucBox G3 Pro (16GB + 512GB) uses SODIMM slots up to 64GB. The Geekom Mini Air12 (Pentium 7505 8GB + 256GB) uses SODIMM slots up to 32GB.
Who should buy the GMKtec NucBox G3 Pro (16GB + 512GB)?
Buyers who want 16GB and 512GB in a cheap Windows 11 Pro mini PC, and who can live with a 1 year warranty, should choose the GMKtec NucBox G3 Pro (16GB + 512GB).
Who should buy the Geekom Mini Air12 (Pentium 7505 8GB + 256GB)?
Buyers who want the lowest spend, a three-year warranty and a quiet Pentium box for browsing or a kiosk should choose the Geekom Mini Air12 (Pentium 7505 8GB + 256GB).
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