TL;DR: NVIDIA's RTX 5090 graphics card requires 4 x 8-pin connectors for 600W power officially, but can operate with 3 x 8-pin connectors at 450W, seemingly running only 5% slower in 4K benchmarks.
With the GeForce RTX 4070 and RTX 4060 representing more mainstream options for the Ada Lovelace generation, going the 8-pin route would simplify upgrading or swapping out GPUs in many PC builds. The ...