With the introduction of the GeForce RTX 3090 Ti we see the new ATX 16-pin power connector for graphics cards. This new connection not only minimizes cable clutter inside your case, but also meets the power demands of high-end graphics card. GALAX has released the first graphics card featuring two of these connectors, the RTX 3090 Ti Hall of Fame Edition.
These two connectors would theoretically provide up to 1200W of power which at first thought might be insane, but really is not. Keep in mind that there are not that many ATX 3.0 power supplies with the 16-pin connector. Because of this each RTX 3090 Ti graphics card comes with an adapter that splits into three 8-pin PCIe power connectors. These three 8-pin PCIe power connectors can only provide up to 450W, so having two 16-pin connectors isn’t necessarily overkill. Two 16-pin connectors with adapters would provide up to 900W of power.
The GALAX RTX 3090 Ti HOF has a power limit of 480 W, but a special BIOS-based P-mode activates 516 W power limits, so we can see why GALAX opted for dual 16-pin power connections.