GMKtec NucBox G3 Plus vs GMKtec NucBox K15
Check current prices
As an Amazon Associate I earn from qualifying purchases.
GMKtec NucBox G3 Plus
Intel N150 / 16GB DDR4 / 512GB SSD / Windows 11 Pro / US plug
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?
GMKtec NucBox G3 Plus
Not available
GMKtec NucBox K15
Not available
2Can it handle sustained work?
GMKtec NucBox G3 Plus
Not available
GMKtec NucBox K15
Not available
3Can it game?
GMKtec NucBox G3 Plus
Not available
GMKtec NucBox K15
Not available
4Is it loud or hot?
GMKtec NucBox G3 Plus
-
Memory-heavy stress exposed a cooling limit
Jeff Geerling reported overheating and inconsistent results in a 7-Zip benchmark on his review unit. Repasting did not fully resolve his concern; removing the cover and adding airflow let him complete consistent comparisons. His later benchmark results use that modified cooling setup.
Jeff Geerling · 7:31
GMKtec NucBox K15
-
Memory-heavy stress exposed a cooling limit Not available
5How much electricity does it use?
GMKtec NucBox G3 Plus
Not available
GMKtec NucBox K15
Not available
6Can I upgrade and connect everything?
GMKtec NucBox G3 Plus
-
Memory is upgradeable Yes
-
Storage is upgradeable Yes
-
Opening the case requires care around the fan cable Not available
GMKtec NucBox K15
-
Memory is upgradeable Yes
-
Storage is upgradeable Yes
-
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?
GMKtec NucBox G3 Plus
Not available
GMKtec NucBox K15
Not available
8Will it be dependable?
GMKtec NucBox G3 Plus
-
Ubuntu detected the main devices
Lon.TV reported working display, audio, Wi-Fi, Ethernet and Bluetooth after installing Ubuntu on his 16GB/512GB G3 Plus. The Ubuntu version was not specified, so this is limited to his tested setup.
Lon.TV · 10:32 -
A newer Linux kernel enabled graphics benchmarks
Jeff Geerling could not run some GPU benchmarks with his initial Ubuntu setup. Updating to Linux 6.12 enabled GLMark2 and GravityMark. His published system record identifies Ubuntu 24.04 with kernel 6.12.3 and a replacement SSD.
Jeff Geerling · 6:01 -
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 -
A newer Linux kernel enabled graphics benchmarks Not available
-
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
-
GMKtec. NucBox G3 Plus specifications and US configuration. Product page. Accessed .
Configuration: Intel N150 / 16GB DDR4 / 512GB SSD / Windows 11 Pro / US plug
Disclosure: Manufacturer specifications; no MiniPCBench measurements.
-
Lon.TV. My Favorite Cheap Mini PC Gets an N150 Upgrade! GMKTec G3 Plus Review. Video review. . Accessed .
Configuration: Intel N150 / 16GB DDR4-3200 / 512GB NVMe SSD / Windows 11 Pro. Ubuntu tested; version and firmware unconfirmed. Green review unit.
Disclosure: Reviewer purchased the G3 Plus; no payment for the review. Compensated affiliate links disclosed.
-
Jeff Geerling. When did Raspberry Pis get so expensive?. Video review. . Accessed .
Configuration: Intel N150 / 16GB DDR4 / original 512GB AirDisk SSD replaced by a 1TB TeamGroup TM8FP4001T for Ubuntu 24.04 testing, Linux 6.12.3. Balanced and High Performance modes; firmware version unconfirmed.
Disclosure: GMKtec supplied the review unit but did not pay for the video. Reviewer states no GMKtec affiliate participation; Amazon affiliate links disclosed. Supporting system configuration record: https://github.com/geerlingguy/sbc-reviews/issues/64
-
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 GMKtec NucBox G3 Plus
Higher listed specifications for GMKtec NucBox K15
- Supports 64 GB more memory
- Provides 3 storage slots versus 2
Verified specifications
Manufacturer-sourced specifications and current testing status
Processor
| Specification | NucBox G3 Plus | NucBox K15 |
|---|---|---|
| CPU | Intel N150 | Intel Core Ultra 5 125U |
| Cores / threads | 4 / 4 | 12 / 14 |
| Processor default TDP | Not disclosed | Not disclosed |
| Integrated graphics | Intel UHD Graphics | Intel Graphics |
Memory and storage
| Specification | NucBox G3 Plus | NucBox K15 |
|---|---|---|
| Memory type | DDR4-3200 SO-DIMM | DDR5 SO-DIMM; up to 5600 MT/s supported |
| Maximum memory | 32 GB | 96 GB |
| Upgradeable memory | Yes | Yes |
| Storage slots | 2 | 3 |
Connectivity
| Specification | NucBox G3 Plus | NucBox K15 |
|---|---|---|
| Ethernet | 1 x 2.5GbE, Intel i226-V | 2 x 2.5GbE, Realtek RTL8125BG |
| Wireless | Realtek 8852BE Wi-Fi 6 and Bluetooth 5.2 | MediaTek RZ616 / MT7922 Wi-Fi 6E and Bluetooth 5.2 |
| USB4 | No | Yes |
| Thunderbolt | No | Not published |
Size and price
| Specification | NucBox G3 Plus | NucBox K15 |
|---|---|---|
| Enclosure volume | Not published | Not published |
| List price | Not published | Not published |
| Product class | Not assigned | Not assigned |