GEEKOM Air12 2026 Edition vs GMKtec NucBox K15
Check current prices
As an Amazon Associate I earn from qualifying purchases.
GEEKOM Air12 2026 Edition
Pentium Gold 7505 / 16GB DDR4 / 512GB SSD / Windows 11 Pro / black and gray chassis / US market
GMKtec NucBox K15
Core Ultra 5 125U / 32GB DDR5 / 1TB SSD / Windows 11 Pro / metallic gray and black / US plug
Amazon results may include other models. Verify the processor, memory, storage, and seller before buying.
| Memory | ||
|---|---|---|
| Storage |
1Is it fast for normal work?
GEEKOM Air12 2026 Edition
-
Multitasking slowed the reviewed base model
Albert Unbox reported slowdown while playing YouTube, recording the screen and downloading software together. He also demonstrated lag in Photoshop. His unit had 8GB RAM and 256GB storage, so this is not a measured result for the 16GB/512GB configuration.
Albert Unbox · 1:58
GMKtec NucBox K15
-
Multitasking slowed the reviewed base model Not available
2Can it handle sustained work?
GEEKOM Air12 2026 Edition
-
Short CPU stress test did not report thermal throttling
Britec09 shows CPU-Z stressing the processor and HWiNFO reporting no thermal throttling on the 8GB/256GB review unit. Test duration, ambient temperature and firmware were not fully documented, so this does not establish sustained behavior for every workload.
Britec09 · 7:48
GMKtec NucBox K15
-
Short CPU stress test did not report thermal throttling Not available
3Can it game?
GEEKOM Air12 2026 Edition
Not available
GMKtec NucBox K15
Not available
4Is it loud or hot?
GEEKOM Air12 2026 Edition
Not available
GMKtec NucBox K15
Not available
5How much electricity does it use?
GEEKOM Air12 2026 Edition
Not available
GMKtec NucBox K15
Not available
6Can I upgrade and connect everything?
GEEKOM Air12 2026 Edition
-
Memory is upgradeable Yes
-
Storage is upgradeable Yes
-
Access to memory and storage
FunkyScott47 opened his 8GB/256GB Air12 by removing four base screws and showed the memory and M.2 storage inside. The installed memory layout of this 16GB configuration remains unconfirmed.
FunkyScott47 · 3:58 -
Opening the case requires care around the fan cable Not available
GMKtec NucBox K15
-
Memory is upgradeable Yes
-
Storage is upgradeable Yes
-
Access to memory and storage Not available
-
Opening the case requires care around the fan cable
Team Pandory demonstrated removing the feet, metal cover and case screws to reach the replaceable memory and SSDs. The upper fan remains connected to the mainboard as the case opens, so the cable needs care during access.
Team Pandory · 12:02
7Is it good value?
GEEKOM Air12 2026 Edition
Not available
GMKtec NucBox K15
Not available
8Will it be dependable?
GEEKOM Air12 2026 Edition
-
Ubuntu detected the main devices Not available
-
Batocera 42 connected to Wi-Fi and a controller Not available
GMKtec NucBox K15
-
Ubuntu detected the main devices
Lon.TV reported working video, audio, Bluetooth, networking and Wi-Fi during an Ubuntu test on his 32GB/1TB K15. The distribution version was not specified, so this does not establish compatibility with every Linux release.
Lon.TV · 9:02 -
Batocera 42 connected to Wi-Fi and a controller
Team Pandory reported that Batocera 42 booted and connected to Wi-Fi and a Bluetooth controller on his 48GB/1TB K15. This is a basic compatibility check on that configuration.
Team Pandory · 9:44
References
-
GEEKOM. Air12 2026 Edition specifications and US retail options. Product page. Accessed .
Configuration: Pentium Gold 7505 / 16GB DDR4 / 512GB SSD / Windows 11 Pro / black and gray chassis / US market
Disclosure: Manufacturer specifications; no MiniPCBench measurements.
-
FunkyScott47. What can the THINNEST Mini-PC handle? | Testing the GEEKOM Air12 2026 Edition. Video review. . Accessed .
Configuration: Pentium Gold 7505 / 8GB DDR4 / 256GB SSD; installed OS edition and firmware unconfirmed.
Disclosure: Includes paid promotion label, coupon and Amazon affiliate disclosure; acquisition unconfirmed.
-
Albert Unbox. GEEKOM Air12 2026 Edition – Can this super thin and tiny little mini PC handle real work?. Video review. . Accessed .
Configuration: Pentium Gold 7505 / 8GB RAM / 256GB storage / Intel UHD Graphics; OS edition and firmware unconfirmed. Product tags link other CPU editions, but footage and spoken configuration identify the 7505.
Disclosure: Reviewer states GEEKOM sponsored the video and that opinions reflect his own tests; commission-earning product tags.
-
Britec09. The Perfect Linux Mini PC. Video review. . Accessed .
Configuration: Pentium Gold 7505 / 8GB DDR4 / 256GB SSD. Windows 11 shown; edition, build and firmware unconfirmed.
Disclosure: GEEKOM supplied the review unit; retention terms unconfirmed. Amazon affiliate links disclosed.
-
GMKtec. NucBox K15 specifications and US configuration. Product page. Accessed .
Configuration: Core Ultra 5 125U / 32GB DDR5 / 1TB SSD / Windows 11 Pro / metallic gray and black / US plug
Disclosure: Manufacturer specifications; no MiniPCBench measurements.
-
Lon.TV. GMKTec K15 Mini PC Review - The "Toyota Camry" Mini PC With Plenty of Upgrade Options. Video review. . Accessed .
Configuration: Core Ultra 5 125U / 32GB DDR5-4800 / 1TB NVMe SSD. Windows edition and firmware version unconfirmed; Ubuntu version unspecified. Performance mode used.
Disclosure: Free review unit and affiliate links disclosed; no other payment for coverage.
-
Team Pandory. This Mini PC Runs Shockingly Cool and Quiet [GMKTEC K15 Review]. Video review. . Accessed .
Configuration: Core Ultra 5 125U / 48GB DDR5-4800 / 1TB NVMe SSD / Windows 11 Pro; Batocera 42 also tested. Firmware version unconfirmed.
Disclosure: Free review unit and affiliate links disclosed; no other payment for coverage.
Value for money
No value comparison is available. It requires eligible test scores and at least four current price observations in seven days.
Specification differences
Differences supported by the listed manufacturer specifications
Higher listed specifications for GEEKOM Air12 2026 Edition
Higher listed specifications for GMKtec NucBox K15
- Supports 64 GB more memory
- Provides 3 storage slots versus 1
Verified specifications
Manufacturer-sourced specifications and current testing status
Processor
| Specification | Air12 2026 Edition | NucBox K15 |
|---|---|---|
| CPU | Intel Pentium Gold 7505 | Intel Core Ultra 5 125U |
| Cores / threads | 2 / 4 | 12 / 14 |
| Processor default TDP | 15 W | Not disclosed |
| Integrated graphics | Intel UHD Graphics | Intel Graphics |
Memory and storage
| Specification | Air12 2026 Edition | NucBox K15 |
|---|---|---|
| Memory type | DDR4 SO-DIMM | DDR5 SO-DIMM; up to 5600 MT/s supported |
| Maximum memory | 32 GB | 96 GB |
| Upgradeable memory | Yes | Yes |
| Storage slots | 1 | 3 |
Connectivity
| Specification | Air12 2026 Edition | NucBox K15 |
|---|---|---|
| Ethernet | 1 × Gigabit Ethernet | 2 x 2.5GbE, Realtek RTL8125BG |
| Wireless | Wi-Fi 6 and Bluetooth 5.2 | MediaTek RZ616 / MT7922 Wi-Fi 6E and Bluetooth 5.2 |
| USB4 | No | Yes |
| Thunderbolt | Not published | Not published |
Size and price
| Specification | Air12 2026 Edition | NucBox K15 |
|---|---|---|
| Enclosure volume | Not published | Not published |
| List price | Not published | Not published |
| Product class | Not assigned | Not assigned |