GMKtec has launched the NucBox G3 Ultra, a compact mini PC built around Intel's Pentium Gold 7505 processor from the Tiger Lake generation. The dual-core, four-thread chip boosts up to 3.5 GHz with 4 MB of L3 cache and integrates Intel UHD Graphics with 48 execution units. Three configurable power profiles at 8 W, 10 W, and 15 W let users tune for efficiency or performance, with a copper heatpipe and fan handling thermals across the range.
The chassis measures 114 x 106 x 44 mm (4.5 x 4.2 x 1.7 in) and weighs just 280 g (0.6 lbs), but squeezes in a solid expansion story: two M.2 2280 slots, one supporting PCIe Gen4 NVMe drives up to 8 TB and the other accepting SATA SSDs up to 1 TB. Memory is less accommodating, with 16 GB of LPDDR4-3200 soldered directly to the board. For ports, the G3 Ultra provides three USB 3.2 Gen 2 Type-A connections, one USB 2.0 Type-A, dual HDMI 2.0 outputs each capable of 4K at 60 Hz, Gigabit Ethernet, Wi-Fi 6, Bluetooth 5.2, and a 3.5 mm audio jack. USB-C is absent from the lineup entirely.
Tiger Lake's i915 graphics driver has been stable in the mainline Linux kernel since the 5.4 cycle and is fully mature at this point, which makes the G3 Ultra a straightforward platform for a lightweight Linux desktop, media server, or home automation hub. The adjustable TDP and small footprint suit always-on deployments where noise and power draw matter. The Pentium Gold 7505 is a discontinued 2020 part, though, and Intel's newer N-series processors like the N100 and N150 offer competitive multi-threaded performance at lower power envelopes in similarly priced machines.
The NucBox G3 Ultra is listed on GMKtec's US store starting at $270 (€250) with 16 GB of RAM and a 256 GB SSD. Configurations with 512 GB and 1 TB storage are available in select regions. Windows 11 Pro comes pre-installed.
