The PCIe 5.0 external power supply interface is similar to NVIDIA’s 12Pin interface
When NVIDIA released the GeForce RTX 3080 last year, it adopted an innovative power supply interface, replacing the previous dual 8Pin external power supply interface with a 12Pin interface. Although the volume has become smaller, it can carry more current than the original standard PCIe external power supply port and can simplify the design of the circuit and PCB, saving more space.
Nvidia has always wanted to promote this new interface on its Ampere architecture graphics card, but apart from Founders Edition, no other manufacturer has used this 12Pin interface. According to Eteknix reports, the new ROG THOR II Platinum series power supply that ASUS previously demonstrated is equipped with a new PCIe 5.0 external power supply interface connection cable, but it is only an adapter. In fact, the power supply does not specifically design a new interface for the PCIe 5.0 external power supply. The wire is connected to the power supply through the dual 8Pin interface. The new PCIe 5.0 external power supply interface and the 12Pin interface promoted by NVIDIA both use the same Molex Micro-Fit 3.0 series, and there may be a design correlation between the two.
According to previously leaked information, the maximum current per pin of the new PCIe 5.0 external power supply interface is 9.2A, which means that the total current has reached 55.2A, and the theoretical maximum power has reached 662W, but the specification is limited to 600W. The next generation of graphics cards in the future, through the PCIe slot and a PCIe 5.0 external power supply interface, the maximum power consumption can reach 675W, if it is a pair of PCIe 5.0 external power supply interfaces, it will reach an astonishing 1275W.
It is reported that the GeForce RTX 3090 Ti launched by Nvidia early next year will use the GA102-350 core and have a complete specification, that is, 10,752 stream processors and 24GB of GDDR6X video memory. It is rumored that this graphics card will be the first product to support the new PCIe 5.0 external power supply interface.
