Mini PC gaming has one big problem: most mini PCs are still iGPU machines, and marketing doesn’t change physics. In this video I tested the Minisforum DEG2 eGPU dock with a full RTX 5080 and I ran it the only way that matters—real use, real games, real stability. Minisforum already tried this with the DEG1, and the truth is it wasn’t reliable with high-end GPUs. The DEG2 is the second attempt, and the story here isn’t “wow, look at the specs”… it’s that it finally stops the crashes, black screens, and link drops. I tested USB4 and OCuLink side by side. On the X1 Lite 255, the iGPU scored ~31K in Geekbench OpenCL, then jumped to ~215K over USB4—huge upgrade, but you still feel inconsistency in heavy scenes. On OCuLink with the AI X1 Pro, I hit ~240K, which is only about 10–15% higher, but frame pacing and consistency are noticeably better. The bandwidth limit is still PCIe x4, so don’t expect desktop PCIe 4.0 x16 behavior, but the DEG2’s dedicated 8-pin EPS power line fixes what actually mattered: reliability. If you understand trade-offs and want raw, stable GPU power on a mini PC, this is the cleanest eGPU dock execution I’ve used.