GMKtec NucBox G3S (8GB + 256GB) vs GMKtec NucBox M7 Ultra (32GB + 512GB)

The GMKtec NucBox M7 Ultra (32GB + 512GB) is the stronger pick, rated higher by owners and ahead on memory type, memory capacity, GPU and storage capacity. The GMKtec NucBox G3S (8GB + 256GB) only wins on price, which is exactly why it exists as the budget option in the lineup.

Processor and memory class. The G3S runs a four-core Intel N95 with a single 8GB stick of DDR4, while the M7 Ultra runs an eight-core AMD Ryzen 7 PRO 6850U with 32GB of dual-channel DDR5, a jump in both raw processing power and the ceiling for multitasking.

Yes, both use socketed memory and replaceable storage rather than soldered components. The G3S tops out at 16GB of DDR4 and has two M.2 slots for storage, while the M7 Ultra can be taken to 64GB of DDR5 and has two M.2 2280 PCIe 4.0 slots for expansion.

The M7 Ultra, by a wide margin. It has dual 2.5G Ethernet, Wi-Fi 6E, two USB4 ports and a front OCuLink port for an external GPU, while the G3S has a single Gigabit Ethernet port, Wi-Fi 5 and no USB4 or DisplayPort output.

Buyers who want the cheapest way into a real Windows desktop for browsing, documents, streaming and light retro gaming, and who do not need more than 16GB of memory.

Buyers who want genuine multitasking headroom, faster DDR5 memory, dual 2.5G networking for home server or router duty, and the option to attach an external GPU down the line.