Review of the GEEKOM IT12 MAX with Intel Core Ultra 5 125U and 16GB DDR5

The GEEKOM IT12 MAX is a compact mini PC designed for normal users for multimedia and browsing at home, intensive office use, light virtualization, and home networking labs.

It stands out for its dual 2.5G Ethernet ports, next-generation Wi-Fi 7 connectivity, and two high-speed USB4 ports at 40 Gbps with a 100W power input for charging. However, some advertisements exaggerate its graphics performance, and the inability to expand its RAM detracts from the overall power of this mini PC compared to rival options.

• Pros:

  • Outstanding connectivity with Dual LAN 2.5G, Wi-Fi 7 and 2 USB4 ports.

  • Very low power consumption at idle thanks to the Intel Core Ultra "U" series processor.

  • It can be powered by a 100W USB-C charger without using the serial adapter.

  • High-speed DDR5 memory.

  • Three-year direct manufacturer's warranty.

• Cons:

  • LPDDR5 RAM soldered onto a motherboard without expansion slots.

  • Graphics performance limited to 4 Xe cores, well below what was advertised.

  • Only one storage slot with a maximum capacity of up to 2TB.

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Unboxing and box contents

The device arrives in the brand's characteristic rigid packaging. Upon opening it, we find:

• GEEKOM IT12 MAX Mini PC

• Metal VESA mounting plate with its screw set.

• 19V external power adapter with European plug cable.

• HDMI 2.0 cable.

• User manual and thank you card.

Key technical specifications

Design and construction quality

The IT12 MAX features a cube-shaped chassis in a dark metallic blue. The outer casing is made of reinforced PC+ABS plastic with UV treatment, while the lower base and internal frame use sheet metal for structural rigidity and VESA mount compatibility.

It feels solid and dense in the hand, with no creaking when you squeeze the sides. The top grille and side vents allow fresh air to flow to the internal fan. The front panel features no fewer than four full-size USB ports along with the audio jack, a convenient layout so you don't have to search for rear ports every time you plug in a flash drive or other peripheral.

Screen and multimedia

The device supports up to four monitors at once: two via HDMI 2.0 connectors (4K at 60 Hz) and two more using the rear USB4 ports via adapters or native DisplayPort monitors (with support up to 8K at 60 Hz).

Multimedia video playback is flawless. Thanks to the Meteor Lake processor's multimedia engine, it features native hardware decompression for modern formats like AV1, HEVC, and VP9. Streaming 4K video or playing high-bitrate local files requires minimal effort from the chip, keeping the CPU practically idle. The front-facing 3.5mm headphone jack delivers clean sound, free from static electrical interference from the motherboard.

Performance and software

Under the hood we find the Intel Core Ultra 5 125U, a processor configured with 2 high-performance cores (P-Cores), 8 efficiency cores (E-Cores) and 2 additional very low-power cores integrated into the input/output chiplet.

The system boots with a clean installation of Windows 11 Pro, without any added adware or annoying bloatware. For office tasks, heavy browsing with dozens of tabs open, and playback of high-definition content, the machine responds instantly. The included NVMe PCIe 4.0 SSD delivers sequential read speeds of around 4,800 MB/s, significantly speeding up loading times and the transfer of large files.

For local development tasks with Docker or creating lightweight virtual machines in Linux, the processor performs well, as long as you keep in mind the limitation of its 16 GB of shared memory.

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Energy consumption, temperature and noise

When using a "U" series processor, electrical efficiency is its greatest strength:

• Standby power consumption: Between 8W and 11W on the Windows desktop.

• Average workload: About 18W to 22W during normal tasks.

• Peak burst (PL2): Reaches a peak of 28W during demanding tests before stabilizing at its sustained limit of 15W.

The IceBlast cooling system employs two copper heat pipes and a turbine-style fan. During idle and basic browsing, the noise is negligible. Under continuous stress in processor tests, the fan noise rises to around 43–45 dB, generating a continuous airflow that isn't bothersome if the system is positioned behind the monitor. Core temperatures did not exceed 78 °C during our continuous thermal stress tests.

Connectivity and ports

The external connections section is, by far, the best thing about the device:

• Front: 4 USB 3.2 Gen2 Type-A ports (10 Gbps) and 3.5 mm audio jack.

• Rear: 2 USB4 Type-C ports (40 Gbps), 2 RJ45 2.5 GbE Ethernet ports, 2 HDMI 2.0 outputs, 1 USB 3.2 Gen2 Type-A port, 1 USB 2.0 Type-A port and DC power socket.

• Side: Full-size SD 4.0 card reader (up to 300 MB/s) and Kensington lock slot.

A key feature of this model is that one of its USB4 ports supports 100W Power Delivery input. This eliminates the need for the included drum charger, allowing you to power the mini PC directly via a single cable connected to a compatible monitor or a portable GaN charger.

Expansion and upgrade possibilities

It is worth pausing here to clarify the internal specifications:

• RAM: Not expandable. Despite what several promotional tables on online stores claim, the IT12 MAX uses 4 LPDDR5 memory chips soldered directly onto the motherboard. You will be limited to the 16 GB included for the entire lifespan of the device.

• Main drive: The M.2 2280 NVMe PCIe 4.0 slot allows you to replace the standard 500GB drive with higher capacity drives of 1TB or 2TB.

• Second drive: Unlike older revisions of the IT12 series, this chassis does not include an internal 2.5-inch SATA drive bay or a secondary M.2 slot.

If you need to expand your internal storage with a fast, high-capacity drive, you can purchase compatible drives via this link for NVMe PCIe 4.0 SSDs.

Comparison with direct competitors

Technical tests and synthetic performance

• Cinebench R23 (Single-Core): ~1,720 points. The per-core performance of the Intel Core Ultra 5 125U processor is agile and capable, placing it on par with recent desktop processors.

• Cinebench R23 (Multi-Core): ~8,450 points. The Intel Core Ultra 5 125U's 12 mixed core combination performs well in parallel processing tasks, although it falls behind the "H" series models with 45W limits.

• PCMark 10: 5,820 points in combined office tasks, complex spreadsheets, and web browsing. This places this machine clearly above what is considered a standard office computer, guaranteeing absolute fluidity in any professional work environment.

• LAN network test: The two 2.5 Gbps Ethernet controllers maintain continuous transfers of 282 MB/s.

Gaming and emulation

The brand's marketing materials compare this integrated graphics card to a dedicated NVIDIA GTX 1650. The data at hand requires a more nuanced assessment of that claim.

The Core Ultra 5 125U integrates the cut-down version of the Meteor Lake graphics architecture, with only 4 Xe cores (models intended for light gaming, such as the Ultra 7 155H, have 8 Xe cores):

• Esports games (1080p on low settings): Competitive titles like League of Legends and Valorant run above 90 FPS without difficulty. Counter-Strike 2 and Fortnite in performance mode maintain a stable 45-60 FPS.

• Demanding modern games: Heavy titles like Cyberpunk 2077 or Starfield do not achieve acceptable playable frame rates at 1080p resolution, even with all parameters set to minimum using XeSS upscaling.

• Emulation: It handles even consoles from the PlayStation 2, GameCube, and Nintendo Wii era smoothly without frame rate drops. On more modern systems like the Nintendo Switch or PS3, performance varies depending on the title, falling short with the most demanding games in the catalog.

If your primary goal is to play games without a dedicated graphics card, you'll get more than double the frames per second by opting for mini PCs with AMD Ryzen 7 processors and Radeon 780M graphics available on Amazon.

Frequently Asked Questions (FAQ)

Can the RAM of the GEEKOM IT12 MAX be expanded?

No. The LPDDR5 memory comes soldered to the motherboard at the factory in four BGA modules. There are no SO-DIMM slots for installing additional modules.

Can it be powered via the USB-C port?

Yes. One of its rear USB4 ports supports 100W Power Delivery. You can connect it to a monitor with a USB-C cable or use a 100W GaN compact charger instead of the included adapter.

Is it suitable for setting up a home server or pfSense router?

It's one of its best applications. Its dual 2.5 Gbps network ports, low standby power consumption of around 10W, and thermal stability make it an ideal device for environments such as Proxmox VE, TrueNAS, or virtual firewalls.

Does it support external graphics cards (eGPU)?

Yes. With two USB4 ports offering 40 Gbps of bandwidth, it's compatible with external eGPU enclosures for connecting a desktop graphics card if you need additional rendering or gaming power.

Final conclusion and alternatives

The GEEKOM IT12 MAX is an outstanding compact computer for a very specific profile: users looking for an ultra-quiet office computer or system administrators who need a compact virtualization node with dual 2.5 Gbps network ports and high-speed USB4 ports.

However, for the average user or video game enthusiast, its official price of around $650 makes it difficult to recommend compared to alternatives on the market:

• If you're looking for integrated graphics power and expandable memory up to 64 GB, a computer with an AMD Ryzen 7 8745HS or 8845HS processor offers more performance.

• If you're looking for a low-cost machine with dual Ethernet ports for a home router, older generation options are still more cost-effective.

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