New PCIe 5.0 video cards and new power connector

The first images of the upcoming High-Power Connector for PCIe 5.0 compatible graphics cards were reported by Igor’s Lab.

Designed for next-generation graphics cards, the power connector diagrams show that it will deliver over 600W of power.

According to Igor Wallossek, existing power systems are becoming obsolete as GPUs become more power hungry.

This generation has seen most of the high-end NVIDIA and AMD graphics cards equipped with triple 8-pin connector interfaces.

While NVIDIA has opted for a 12-pin Microfit solution for their Founders Edition variants, AIB partners have given up on using the new power standard, but they won’t be able to do without the upcoming 12VHPWR PCI Express connector.

Future video cards based on the PCIe Gen5 standard will use a PCIe connector with double the bandwidth of the previous generation, but an increase in performance up to three times higher will also lead to a marked increase in energy demands.

According to Igor’s Lab, the new 12VHPWR connector will carry 16 pins and the reason it is called 12VHPWR is that it has 12 pins for power supply and 4 for signal transmission.

The new 12VHPWR connector should only work with PCIe Gen5 graphics cards and not be backward compatible with previous standards.

The official PCI-SIG specification defines each pin capable of supporting up to 9.2A, for a total of 55.2A on 12V, theoretically 662W overall, however it seems this connector is limited to 600W.

Additionally, the power pins of the 12VHPWR connector have a 3mm pitch, while the contacts in a 2 × 3 (6-pin) and 2 × 4 (8-pin) legacy connector have a 4.2mm pitch.

There are already implementations of this connector and one comes from Amphenol ICC: the company has designed a 12VHPWR connector and has already listed.

Source: Nexthardware All by

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