Winner
Updated October 2026
Data from Amazon and official Geekom and GMKtec sites.
2026 verdict
A capable everyday mini PC against a bare-bones one, and the Geekom A8 (Ryzen 7 16GB + 1TB) is the better machine of these two.
It wins on owner rating, on memory type and capacity with 16GB of DDR5 against 8GB of DDR4, on storage at 1TB against 256GB, on the 3-year warranty against 1 year, and it adds USB4, an SD card reader and a Kensington lock. The GMKtec NucBox G3S (8GB + 256GB) answers with the much lower price, two M.2 slots for storage growth and a silent 260g body. Both drive two 4K displays. Pick the Geekom A8 (Ryzen 7 16GB + 1TB) for real headroom, and the GMKtec NucBox G3S (8GB + 256GB) for the least you can spend on a Windows desktop.
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| Feature | Geekom A8 (Ryzen 7 16GB + 1TB) | GMKtec NucBox G3S (8GB + 256GB) | Winner |
|---|---|---|---|
| Price | $699.00 | $349.99 | GMKtec NucBox G3S (8GB + 256GB) |
| Rating | 4.4 | 4.2 | Geekom A8 (Ryzen 7 16GB + 1TB) |
| Warranty | 3 years | 1 year | Geekom A8 (Ryzen 7 16GB + 1TB) |
| Memory Type | DDR5 | DDR4 | Geekom A8 (Ryzen 7 16GB + 1TB) |
| Memory Capacity | 16 GB | 8 GB | Geekom A8 (Ryzen 7 16GB + 1TB) |
| Storage Capacity | 1 TB | 256 GB | Geekom A8 (Ryzen 7 16GB + 1TB) |
| CPU Model | AMD Ryzen 7 8745HS | Intel Processor N95 | Different strengths |
| GPU Model | AMD Radeon 780M | Intel UHD Graphics (up to 1200 MHz) | Different strengths |
What the differences mean
Processor and memory
The Geekom A8 (Ryzen 7 16GB + 1TB) pairs an eight-core Ryzen 7 8745HS with 16GB of DDR5 expandable to 64GB. The GMKtec NucBox G3S (8GB + 256GB) uses a four-core Intel N95 with 8GB of DDR4 in a single slot capped at 16GB.
Storage
The Geekom A8 (Ryzen 7 16GB + 1TB) ships a 1TB PCIe 4.0 SSD. The GMKtec NucBox G3S (8GB + 256GB) ships 256GB but offers two M.2 slots, so it can grow to far more capacity than it starts with.
Ports and expansion
The Geekom A8 (Ryzen 7 16GB + 1TB) adds USB4, an SD card reader and a Kensington lock slot, plus four USB Type-A ports. The GMKtec NucBox G3S (8GB + 256GB) has no USB4, no SD reader and no DisplayPort.
Warranty
The Geekom A8 (Ryzen 7 16GB + 1TB) carries a 3-year warranty against 1 year for the GMKtec NucBox G3S (8GB + 256GB).
Price and build
The GMKtec NucBox G3S (8GB + 256GB) is the much cheaper of the two and is lighter at 260g in a plastic chassis. The Geekom A8 (Ryzen 7 16GB + 1TB) is a metal chassis and the pricier of the pair.
Which one to buy if
- you want headroom for multitasking and heavier apps
The Geekom A8 (Ryzen 7 16GB + 1TB) has eight Ryzen cores and 16GB of DDR5 expandable to 64GB, against four cores and 8GB on the GMKtec.
- you want to spend as little as possible
The GMKtec NucBox G3S (8GB + 256GB) is the much cheaper of the two and is enough for browsing, office work and streaming.
- you want room to add storage later
The GMKtec NucBox G3S (8GB + 256GB) has two M.2 slots, though the Geekom A8 (Ryzen 7 16GB + 1TB) starts with far more capacity.
- you want USB4, an SD reader and a longer warranty
The Geekom A8 (Ryzen 7 16GB + 1TB) adds USB4 and an SD slot and carries a 3-year warranty.
Winner
$699.00
- + Rating: 4.4
- + Warranty: 3 years
- + Memory Type: DDR5
- - Price: $699.00 vs $349.99
$349.99
- + Price: $349.99
- - Rating: 4.2 vs 4.4
- - Warranty: 1 year vs 3 years
What owners say
GMKtec NucBox G3S (8GB + 256GB) owners describe it as practically silent and quick to set up, going from box to a working Windows 11 desktop in about ten minutes, and they are surprised by the performance at this price, with one reporting older games and emulators running well and another using it as a Plex server. They note that both M.2 slots and the memory are user-accessible, and they warn that the model is sold in several configurations and buyers sometimes receive less RAM or storage than expected, that the single memory slot caps at 16GB, and that Wi-Fi 5 and Bluetooth 5.0 are behind current standards.
Price history compared
Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.
- Geekom A8 (Ryzen 7 16GB + 1TB)
- GMKtec NucBox G3S (8GB + 256GB)
Loading price history...
Frequently Asked Questions
Which is better overall: Geekom A8 (Ryzen 7 16GB + 1TB) or GMKtec NucBox G3S (8GB + 256GB)?
The Geekom A8 (Ryzen 7 16GB + 1TB) for real headroom: eight Ryzen cores, 16GB of DDR5, a 1TB SSD, USB4, more ports and a 3-year warranty. The GMKtec NucBox G3S (8GB + 256GB) is the cheapest way into a capable Windows desktop for basic tasks.
What is the biggest difference between the Geekom A8 (Ryzen 7 16GB + 1TB) and the GMKtec NucBox G3S (8GB + 256GB)?
Power and capacity. The Geekom A8 (Ryzen 7 16GB + 1TB) has an eight-core Ryzen 7, 16GB of DDR5 and a 1TB SSD, while the GMKtec NucBox G3S (8GB + 256GB) has a four-core N95, 8GB of DDR4 and 256GB of storage.
Can the GMKtec NucBox G3S (8GB + 256GB) be upgraded?
Yes, both M.2 slots and the single SO-DIMM are user-accessible, so storage can grow a lot. Memory is capped at 16GB in its one slot, though, which is the machine's main limit.
Do the Geekom A8 (Ryzen 7 16GB + 1TB) and GMKtec NucBox G3S (8GB + 256GB) drive two monitors?
Both do. The Geekom A8 (Ryzen 7 16GB + 1TB) has two HDMI plus USB-C outputs up to 8K, and the GMKtec NucBox G3S (8GB + 256GB) has two HDMI 2.0 ports for dual 4K at 60Hz.
Who should buy the Geekom A8 (Ryzen 7 16GB + 1TB)?
Buyers who want a quiet, compact desktop with real CPU and memory headroom, USB4, an SD reader and a 3-year warranty for office work, media and light creative tasks.
Who should buy the GMKtec NucBox G3S (8GB + 256GB)?
Anyone who wants the least expensive silent Windows mini PC for browsing, office work, streaming, a home theatre box or a small server.
Full comparison table
Compare all 88 Mini PCs side by side
You are looking at two of them. The full table lines up all Mini PCs in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
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- 41 specs compared
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