GMKtec G3S Mini PC Review: Worth It? (November 2026)

On this page (11 sections)

1. The GMKtec G3S mini PC at a glance
2. Who should buy the GMKtec G3S?
3. What are the GMKtec G3S specs?
4. Is the memory and storage enough for your files?
5. Can the G3S run two monitors comfortably?
6. What can the Intel N95 handle?
7. Which connections should you check before buying?
8. How does the G3S compare with the Beelink Mini S12 and G10?
9. How should you set up and care for the G3S?
10. What support does GMKtec provide?
11. Should you choose the GMKtec G3S or an alternative?

The GMKtec G3S mini PC is a sensible desktop for documents, email, browsing and video playback if you keep your workload modest. For anyone searching for a GMKtec G3, the exact model matters: this review covers the G3S configuration shown below.

Its strongest use case is a small home office with one or two monitors and most work done in a browser or office app. Choose a larger-memory alternative if your normal day includes several demanding programs running together.

The GMKtec G3S mini PC at a glance

The G3S fits a basic desk with HDMI monitors, wired or wireless accessories and a modest collection of local files. It is a focused everyday computer rather than a workstation for heavy creative work.

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GMKtec G3S mini PC: Best for basic home offices

8.5/10Our score

• Intel N95, 4 cores and 4 threads
• 8GB DDR4 RAM and 256GB M.2 2242 SSD
• Two HDMI 2.0 ports for dual 4K at 60Hz
• Wi-Fi 5, Bluetooth 5.0 and Gigabit Ethernet

A compact desktop for documents, email and streaming, with HDMI connections for a two-screen desk. Choose it for a focused daily workload rather than demanding creative apps.

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Pros

• Two HDMI connections for a dual-monitor desk
• Wired networking and wireless peripheral support
• Includes a VESA mount with screws

Cons

• Limited memory headroom for busy multitasking
• Small internal drive for local media collections
• No confirmed RAM upgrade path for this configuration

Buy it when the tasks you need are clear and unlikely to grow much: household paperwork, online forms, study notes, email and streaming. Its compact format also makes sense when a full-size tower would take up useful desk or floor space.

GoodsTopia's scores reflect fit for this basic-desktop brief, so a lower-scoring alternative can still be the better choice for a busier desk.

Who should buy the GMKtec G3S?

Buy the G3S for routine home and office tasks, especially if you already have a monitor, keyboard and mouse. A compact desktop works well at a fixed workspace where you do not need a laptop's screen, battery or portability.

It also suits a shared household computer used for school portals, bills, recipes and video calls. For calls, remember to account for a webcam, microphone and speakers or headset in your desk plan.

Is the GMKtec G3S right for your workday?

Choose it if you usually work in one main app with a few supporting windows, then switch tasks as needed. A document beside a reference page is a more suitable workload than a large creative project with several background apps.

Before replacing an existing computer, check what slows you down now. A full drive, crowded memory and slow internet are different problems, and buying a new computer without identifying the cause can leave the same frustration.

For a step-by-step hardware checklist, see how to choose a mini PC.

What are the GMKtec G3S specs?

The G3S has entry-level desktop hardware with two display outputs and both wired and wireless networking. These are the key details for the configuration covered here.

The box includes an HDMI cable, power adapter, user manual and VESA mount with screws. Plan for a second display cable if you want to connect both screens.

Do not choose between computers by maximum clock speed alone. The processor design, memory capacity and demands of your software matter more than one headline number.

Is the memory and storage enough for your files?

The included 8GB RAM and 256GB SSD suit light daily work, but offer limited room for growth. Check both separately because adding file storage does not solve a memory shortage.

RAM holds the work your computer is using right now. Large spreadsheets, many browser tabs, video meetings and background apps can compete for that space, even when each task seems ordinary by itself.

Storage holds apps and saved files after you shut down. The operating system and installed programs use part of the drive, so its full capacity is not available for your documents.

Look at your current used storage, then allow room for future files and updates. A computer that is nearly full on arrival is the wrong starting point.

An external drive can hold an archive of photos or videos, but it adds a device and cable to your desk. Cloud storage can reduce local file needs, though it brings internet dependence and may have ongoing fees.

If future memory expansion is part of your plan, read whether mini PC RAM can be upgraded. Confirm the G3S's exact layout and supported capacity with GMKtec before relying on an upgrade.

Can the G3S run two monitors comfortably?

Yes, the G3S supports two 4K screens at 60Hz, which is useful for keeping a document and reference material visible together. Display support describes what it can output, not how quickly every app will run.

For office work, start with monitors you already own rather than treating maximum resolution as a requirement. Readable text, comfortable screen height and enough desk depth matter more than filling every available pixel.

Check the input on each monitor before buying cables or adapters. An HDMI-to-DisplayPort connection needs the correct direction of conversion; an adapter intended for the reverse direction will not do the same job.

After connecting both screens, choose extended desktop mode rather than duplication if you want more workspace. Set each screen's resolution, refresh rate and text scaling separately, then drag their icons to match their physical positions.

What can the Intel N95 handle?

The Intel N95 is a routine-work processor for browsing, office apps and home entertainment. Choose it for those jobs rather than assuming a small desktop can replace a more capable creative or gaming system.

The G3S's video decoding features make playback a natural use. Streaming quality still depends on your connection, service, software and display, so display resolution alone does not promise every service will play at its highest setting.

For demanding games, large video projects or specialist software, start with the application's recommended hardware requirements. Do not confuse the ability to show a high-resolution desktop with the ability to render a demanding game at that resolution.

Our guide to what a mini PC can and cannot do explains the wider category limits. For a broader range of hardware, compare the best mini PCs for home and office.

Which connections should you check before buying?

Count your daily accessories and monitor inputs before choosing the G3S. A wired keyboard, mouse, webcam, backup drive and printer can create more connection needs than a simple desk photo suggests.

Confirm the exact USB port count and layout for this configuration before ordering. Also consider whether a drive or receiver would be awkward to reach after mounting the computer behind a screen.

Use Ethernet when a cable is practical, particularly for a fixed desk with frequent video calls or large downloads. Wi-Fi is convenient when running a cable would be difficult, while Bluetooth can reduce cables for compatible accessories.

The startup features suit more specialized uses, such as waking a computer remotely or restoring operation after power returns. Enable only the functions you need, and check their setup in the manual before depending on unattended operation.

How does the G3S compare with the Beelink Mini S12 and G10?

Choose the Mini S12 for extra file space and the G10 for a busier workspace. Neither is automatically the better buy if the G3S already meets your daily needs.

Beelink Mini S12: for saved files and USB accessories

The Mini S12 suits someone who keeps documents, downloaded media and photos locally but still has a light workload. Its four USB 3.2 Gen 2 ports also help a desk with several wired accessories.

Skip it as a solution to crowded memory: its installed RAM matches the G3S. A larger SSD gives files more room, but it does not make several open apps fit into memory more easily.

Its Bluetooth 4.2 is older than the G3S's version, though that difference alone should not decide the purchase. Check compatibility with the accessories you actually use.

GMKtec G10: for more open apps and mixed monitors

The G10 pairs a Ryzen 5 3500U with Radeon Vega 8 graphics. Its HDMI, DisplayPort and full-function USB-C connections suit a desk whose monitors do not all use the same input.

It also has dual M.2 2280 PCIe 3.0 storage slots and 2.5GbE networking. Those features matter if you expect storage expansion or have a local network that can use the faster connection.

Skip it if your work stays simple and the added capacity would sit unused. For demanding games or professional creative work, check software requirements rather than treating this upgrade as unlimited performance.

Read GMKtec vs Beelink mini PCs for the brand comparison, or browse the best budget mini PCs for more alternatives.

How should you set up and care for the G3S?

Set it up where you can reach the ports and keep the vents clear, then finish software setup before hiding it behind a monitor. This makes cable changes and early troubleshooting easier.

1. Connect one screen, a keyboard and mouse, and the supplied power adapter.
2. Follow the included setup instructions and confirm the operating system and activation status.
3. Install system and security updates, then restart when prompted.
4. Add your main apps and check video calls, audio and file access.
5. Connect the second monitor and arrange the desktop.
6. Set up backups before moving your only copies of important files.

Do not assume office software is included simply because the computer suits office work. Check the operating system and any required software licenses before buying.

If using the included VESA mount, check that its mounting points fit your monitor arrangement and that the monitor stand leaves access. Leave slack in cables so moving the screen does not pull on the computer's ports.

Keep papers, fabric and other objects away from the cooling vents. Shut down and unplug the computer before cleaning exterior dust, and follow the manual for any work inside the case.

Keep a separate backup of important files rather than using the internal SSD as your only copy. Our mini PC setup guide covers connecting the basic desk equipment.

What support does GMKtec provide?

GMKtec offers a 3-year warranty for purchases starting in October 2026. The first year includes free complete-unit returns and replacements, followed by free replacement of major components for the next two years.

Save your receipt, serial number and support details when the computer arrives. Warranty coverage helps with faults, while backups protect your files if repair or replacement becomes necessary.

For brand selection, consider support access alongside hardware, connections and upgrade options. Our best mini PC brands guide explains those buying checks.

Should you choose the GMKtec G3S or an alternative?

Choose the GMKtec G3S when your daily work is light, your screens accept HDMI and your files fit comfortably on a modest drive. Buy for your busiest normal workday, with some room for growth.

Choose the Mini S12 when file capacity and wired accessories are the main reasons to move away from the G3S. Choose the G10 when more open apps, more internal storage or mixed display connections are part of your actual routine.

Skip this basic-desktop shortlist if demanding graphics or heavy creative work is central to your job. For more office-focused choices, compare mini PCs for home office use.

Frequently asked questions

Is the GMKtec G3S good for everyday use?

Yes, the GMKtec G3S suits documents, email, browsing and video playback. It is a sensible choice for a focused home desk, but people who keep many demanding apps open should choose more memory from the start and check the hardware needs of their main software.

Can the GMKtec G3S run two monitors?

Yes, the GMKtec G3S supports two 4K monitors at 60Hz through its HDMI 2.0 outputs. Use suitable cables, select extended desktop mode and arrange the screens in your operating system; monitors without HDMI inputs need adapters that work from an HDMI source to the monitor's input.

Can you upgrade the RAM in the GMKtec G3S?

Confirm the exact G3S memory layout and supported capacity with GMKtec before buying an upgrade. This configuration includes 8GB DDR4, but a compatible module and accessible slot are not established here; buy enough installed memory now if your work already needs more than that.

How does the GMKtec G3S compare with the Beelink Mini S12?

The G3S and this Mini S12 share an Intel N95 processor and 8GB RAM, so storage and connections are the main buying differences. The Beelink has a 480GB SSD and four USB 3.2 Gen 2 ports, while the G3S has a smaller SSD and newer Bluetooth.