Apple Mac mini M6 vs GMKtec NucBox G3 Plus
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Apple Mac mini M6
12-core CPU and GPU, 16GB memory, 256GB SSD
GMKtec NucBox G3 Plus
Intel N150 / 16GB DDR4 / 512GB SSD / Windows 11 Pro / US plug
Amazon results may include other models. Verify the processor, memory, storage, and seller before buying.
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1Is it fast for normal work?
Apple Mac mini M6
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Manufacturer productivity claim Up to 1.5x vs. M4
Apple reports up to 1.5 times faster Microsoft Excel spreadsheet calculations than its M4 comparison system. This is a manufacturer result, not an independent measurement of the base configuration.
Microsoft Excel spreadsheet calculations · Apple preproduction testing; exact M6 test configuration not published
Apple
GMKtec NucBox G3 Plus
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Manufacturer productivity claim Not available
2Can it handle sustained work?
Apple Mac mini M6
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Dedicated media engines H.264, HEVC, and ProRes
The M6 includes dedicated H.264, HEVC, ProRes, and ProRes RAW encode and decode hardware. This confirms workload support but is not a sustained-performance test.
Video encode and decode capability · M6 media engine
Apple
GMKtec NucBox G3 Plus
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Dedicated media engines Not available
3Can it game?
Apple Mac mini M6
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Manufacturer ray-tracing claim Up to 2x vs. M4
Apple reports up to twice the ray-traced gaming performance of its M4 comparison system in Cyberpunk 2077: Ultimate Edition. Apple did not publish an FPS result or an exact M6 test configuration.
Cyberpunk 2077: Ultimate Edition · Apple preproduction testing; ray tracing; exact M6 test configuration not published
Apple
GMKtec NucBox G3 Plus
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Manufacturer ray-tracing claim Not available
4Is it loud or hot?
Apple Mac mini M6
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Manufacturer idle noise 5 dBA
Apple lists a typical operator-position sound pressure level of 5 dBA at idle.
System idle · Operator position; manufacturer acoustical test
Apple -
Memory-heavy stress exposed a cooling limit Not available
GMKtec NucBox G3 Plus
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Manufacturer idle noise Not available
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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
5How much electricity does it use?
Apple Mac mini M6
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Maximum continuous power 155 W maximum
Apple specifies a 155 W maximum continuous power rating for the current Mac mini chassis. This is a design limit, not typical wall-power consumption.
Manufacturer electrical rating · 100-240 V AC input
Apple
GMKtec NucBox G3 Plus
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Maximum continuous power Not available
6Can I upgrade and connect everything?
Apple Mac mini M6
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Memory is upgradeable No
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Storage is upgradeable No
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Thunderbolt is present Yes
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Display support Up to 3 displays
The M6 model supports up to three external displays through its Thunderbolt 4 and HDMI ports.
Manufacturer display-support check · M6 Mac mini
Apple
GMKtec NucBox G3 Plus
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Memory is upgradeable Yes
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Storage is upgradeable Yes
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Thunderbolt is present Not available
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Display support Not available
7Is it good value?
Apple Mac mini M6
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Launch price $899
Apple launched the base M6 Mac mini with 16GB of memory and a 256GB SSD at $899 in the United States.
Manufacturer launch-price check · M6, 16GB unified memory, 256GB SSD
Apple
GMKtec NucBox G3 Plus
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Launch price Not available
8Will it be dependable?
Apple Mac mini M6
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Hardware warranty 1 year
Apple's U.S. limited warranty covers Mac hardware against defects in materials and workmanship for one year from the original retail purchase date.
Manufacturer warranty-policy check
Apple -
Ubuntu detected the main devices Not available
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A newer Linux kernel enabled graphics benchmarks Not available
GMKtec NucBox G3 Plus
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Hardware warranty Not available
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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
References
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Apple. Apple technical specifications. Product page. Accessed .
Configuration: 12-core CPU and GPU, 16GB memory, 256GB SSD
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Apple. Apple unveils a more powerful Mac mini featuring the all-new M6 and M5 Pro. Product page. . Accessed .
Configuration: M6 Mac mini; Apple performance claims use preproduction systems whose exact M6 configuration is not published
Disclosure: Manufacturer launch announcement and manufacturer-conducted testing.
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Apple. Apple One (1) Year Limited Warranty – Mac. Product page. Accessed .
Configuration: Apple-branded Mac hardware sold in the United States
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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.
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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.
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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
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 Apple Mac mini M6
Higher listed specifications for GMKtec NucBox G3 Plus
- Provides 2 storage slots versus 0
Verified specifications
Manufacturer-sourced specifications and current testing status
Processor
| Specification | Mac mini M6 | NucBox G3 Plus |
|---|---|---|
| CPU | Apple M6 | Intel N150 |
| Cores / threads | 12 / 12 | 4 / 4 |
| Processor default TDP | Not disclosed | Not disclosed |
| Integrated graphics | 12-core Apple GPU | Intel UHD Graphics |
Memory and storage
| Specification | Mac mini M6 | NucBox G3 Plus |
|---|---|---|
| Memory type | Unified memory onboard | DDR4-3200 SO-DIMM |
| Maximum memory | 32 GB | 32 GB |
| Upgradeable memory | No | Yes |
| Storage slots | 0 | 2 |
Connectivity
| Specification | Mac mini M6 | NucBox G3 Plus |
|---|---|---|
| Ethernet | 2.5GbE; configurable to 10GbE | 1 x 2.5GbE, Intel i226-V |
| Wireless | Wi-Fi 7 + Bluetooth 6 | Realtek 8852BE Wi-Fi 6 and Bluetooth 5.2 |
| USB4 | Yes | No |
| Thunderbolt | Yes | No |
Size and price
| Specification | Mac mini M6 | NucBox G3 Plus |
|---|---|---|
| Enclosure volume | 0.81 liters | Not published |
| List price | $899 | Not published |
| Product class | macOS mini desktop | Not assigned |