In short: Today’s mini PCs are a far cry from the low-powered office machines they used to be. Just take a look at Minisforum’s Neptune HX90G, which features a high-end AMD or Intel processor, a Navi 23-based GPU, a massive heatsink, and even pre-applied liquid metal, all inside a tiny 2.8-liter chassis.

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Miniforum announced the Neptune HX90G earlier this month, confirming that the Ryzen 9 5900HX model will arrive first, followed by the Ryzen 9 6900HX and Intel Alder Lake versions.

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It appears that GPUs of all variants are limited to the Radeon RX 6650M, a Navi 23 based graphics card with 8 GB of VRAM and 1792 cores (28 compute units), which is also an option in HP Omen 16. The Neptune HX90G’s small form factor means the graphics are soldered to the PCB so they can’t be replaced or upgraded.

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A promotional video for the Neptune HX90G suggests Minisforum is making sure the components stay cool in its tiny case. The huge heatsink has two fans that sit above the CPU and GPU, and there are seven heatpipes between the two components.

The miniforum claims that the cooler and liquid metal allow heat to be removed without loss of performance from the CPU and GPU running at 100% load: 50W and 100W respectively. The company has confirmed that the mini PC will ship with a 260W power adapter.

As with similar mini PCs, the Neptune HX90G comes without RAM and storage. You get two SODIMM slots that support up to 32GB of dual-channel DDR4 memory, and two PCIe 3.0 slots for up to 1TB storage. It also boasts two HDMI ports, two DisplayPort outputs, an audio jack, one 2.5Gbps Ethernet port, three USB 3.2 Gen 2, one USB 3.1 Gen 1, and one USB Type-C. Nothing has been said about the price yet.

March Gigabyte launched what he called the world’s “most powerful” mini PC: the Brix Extreme. It uses the latest Intel Alder Lake mobile processors and supports PCIe Gen 4 connectivity but doesn’t have a dedicated GPU, relying only on Intel Iris Xe graphics.