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.
High-performance connectors like 12V-2×6, sometimes called 12VHPWR, deliver significant current to advanced graphics cards such as the NVIDIA GeForce RTX 5090 Founders Edition. Each connector pin ...