Apple Mac mini M5 Pro vs GMKtec NucBox K15

Silver 2026 Apple Mac mini held in one hand and viewed from the front
GMKtec NucBox K15 in metallic gray and black, showing front and rear angles
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Apple Mac mini M5 Pro

15-core CPU, 16-core GPU, 24GB memory, 512GB SSD

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GMKtec NucBox K15

Core Ultra 5 125U / 32GB DDR5 / 1TB SSD / Windows 11 Pro / metallic gray and black / US plug

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Amazon results may include other models. Verify the processor, memory, storage, and seller before buying.

iThese are manufacturer-sourced specifications, not MiniPCBench test results. Confirm the exact processor, memory, storage, price, and availability before buying.
Memory
Storage

1Is it fast for normal work?

Apple Mac mini M5 Pro

  • Base processor configuration 15 CPU cores

2Can it handle sustained work?

Apple Mac mini M5 Pro

  • Dedicated media engines H.264, HEVC, and ProRes

3Can it game?

Apple Mac mini M5 Pro

  • Graphics hardware 16-core GPU

4Is it loud or hot?

Apple Mac mini M5 Pro

  • Manufacturer idle noise 5 dBA

5How much electricity does it use?

Apple Mac mini M5 Pro

  • Maximum continuous power 155 W maximum

6Can I upgrade and connect everything?

Apple Mac mini M5 Pro

  • Memory is upgradeable No
  • Storage is upgradeable No
  • Thunderbolt is present Yes
  • Display support Up to 3 displays
  • Opening the case requires care around the fan cable Not available

GMKtec NucBox K15

  • Memory is upgradeable Yes
  • Storage is upgradeable Yes
  • Thunderbolt is present Not available
  • Display support Not available
  • Opening the case requires care around the fan cable

7Is it good value?

Apple Mac mini M5 Pro

  • Launch price $1,699

8Will it be dependable?

Apple Mac mini M5 Pro

  • Hardware warranty 1 year
  • Ubuntu detected the main devices Not available
  • Batocera 42 connected to Wi-Fi and a controller Not available

GMKtec NucBox K15

  • Hardware warranty Not available
  • Ubuntu detected the main devices
  • Batocera 42 connected to Wi-Fi and a controller

References

  1. Apple. Apple Mac mini technical specifications. Product page. Accessed .

    Configuration: M5 Pro with 15-core CPU, 16-core GPU, 24GB unified memory, and 512GB SSD

  2. Apple. Buy Mac mini with M5 Pro. Product page. Accessed .

    Configuration: MHQN4LL/A: M5 Pro with 15-core CPU, 16-core GPU, 24GB unified memory, and 512GB SSD

    Disclosure: Manufacturer retail configuration and price.

  3. Apple. Apple One (1) Year Limited Warranty – Mac. Product page. Accessed .

    Configuration: Apple-branded Mac hardware sold in the United States

  4. 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.

  5. 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.

  6. 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 Apple Mac mini M5 Pro

Higher listed specifications for GMKtec NucBox K15

  • Supports 32 GB more memory
  • Provides 3 storage slots versus 0

Verified specifications

Manufacturer-sourced specifications and current testing status

Processor

SpecificationMac mini M5 ProNucBox K15
CPUApple M5 ProIntel Core Ultra 5 125U
Cores / threads15 / 1512 / 14
Processor default TDPNot disclosedNot disclosed
Integrated graphics16-core Apple GPUIntel Graphics

Memory and storage

SpecificationMac mini M5 ProNucBox K15
Memory typeUnified memory onboardDDR5 SO-DIMM; up to 5600 MT/s supported
Maximum memory64 GB96 GB
Upgradeable memoryNoYes
Storage slots03

Connectivity

SpecificationMac mini M5 ProNucBox K15
Ethernet2.5GbE; configurable to 10GbE2 x 2.5GbE, Realtek RTL8125BG
WirelessWi-Fi 7 + Bluetooth 6MediaTek RZ616 / MT7922 Wi-Fi 6E and Bluetooth 5.2
USB4YesYes
ThunderboltYesNot published

Size and price

SpecificationMac mini M5 ProNucBox K15
Enclosure volume0.81 litersNot published
List price$1,699Not published
Product classmacOS pro workflowsNot assigned