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Next-generation AMD and NVIDIA GPUs may adopt a PCIe 5.0 power connector for up to 600 W TDPs

The 12VHPWR can deliver 4x the power of an 8-pin power connector. (Image source: Amphenol)
The 12VHPWR can deliver 4x the power of an 8-pin power connector. (Image source: Amphenol)
Amphenol has confirmed that a new GPU power connector standard is on its way, replacing conventional 8-pin and 12-pin ones. The 12VHPWR will be capable of delivering up to 600 W to next-generation GPUs too, possibly starting with the NVIDIA GeForce RTX 3090 Ti.
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Last week, VideoCardz asserted that NVIDIA could turn to a new power connector for the RTX 3090 Ti. At the time, the website claimed that the power connector would have 16 pins; it also speculated that it would be a MicroFit Molex standard connector.

Now, Amphenol has confirmed that a 16-pin power connector is on its way, designed for PCIe Gen 5. Amphenol describes the 12VHPWR as having 3 mm pitch power pins, 1.2 mm smaller than existing connectors. Additionally, the 12VHPWR measures 18.85 mm across, making it about as wide as NVIDIA's 12-pin connector.

Incidentally, the 12VHPWR has 12 power pins, matching NVIDIA's alternative. However, it also contains 4 signal pins, the use of which remains unclear currently. Igor's Lab has leaked schematics for the new power connector, which you can view below or on its website.

A selling point of the 12VHPWR power connector is its power throughput. PCI-SIG reports that 12VHPWR maintains 55.2 A across 12 power pins at 12 V, yielding a peak of 662 W. Igor's Lab states that the 12VHPWR will be capped at 600 W, though.

Ultimately, 12VHPWR should spell the end of NVIDIA's 12-pin connector. If VideoCardz is correct, NVIDIA may fragment its Ampere line-up as soon as January 2022 at CES 2022.

(Image source: Igor's Lab via VideoCardz)
(Image source: Igor's Lab via VideoCardz)
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Alex Alderson
Alex Alderson - Senior Tech Writer - 4667 articles published on Notebookcheck since 2018
Prior to writing and translating for Notebookcheck, I worked for various companies including Apple and Neowin. I have a BA in International History and Politics from the University of Leeds, which I have since converted to a Law Degree. Happy to chat on Twitter or Notebookchat.
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2021 10 > Next-generation AMD and NVIDIA GPUs may adopt a PCIe 5.0 power connector for up to 600 W TDPs
Alex Alderson, 2021-10-11 (Update: 2021-10-11)