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PCIe 5.0 Power Connector Delivers Up To 600W For Next-Gen AMD, Nvidia GPUs

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rjohnson11
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2021/10/10 02:00:54 (permalink)
https://www.tomshardware.com/news/pcie-5-power-connector-600w-next-gen-amd-nvidia-gpus
 
As graphics cards get more power hungry, the need to develop a new power connector arises. Igor's Lab has shared the schematics for a high-power PCIe power connector tailored for PCIe 5.0. The power connector could debut with the next generation of AMD and Nvidia graphics cards. The 12VHPWR power connector consists of 16 pins in total, four more than Nvidia's 12-pin PCIe power connector. It would appear that the chip maker was on to something or somehow anticipated the direction in which PCIe power connectors were going. With the 12VHPWR power connector, there are 12 power contacts with four smaller signal contacts at the bottom of the connector. For the moment, it's unknown what's the purpose for the signal contacts.
 
The 12VHPWR power connector is reportedly built for PCIe 5.0 graphics cards and isn't backwards compatible with previous generations graphics cards. This new connector aims to eliminate the usage of multiple PCIe power connectors and decrease cable clutter in the process. Instead of endowing graphics cards with up to three 8-pin PCIe power connectors, manufacturers can just implement a single 12VHPWR power connector.
 
According to the technical drawings, the 12VHPWR power connector doesn't adhere to the MicroFit Molex standard. The power pins are 3mm apart whereas the pitch on the existing 6-pin and 8-pin PCIe connectors is 4.2mm. It's 18.85mm long so it isn't exactly a small connector. However, it certainly takes up less space than three 8-pin PCIe power connectors. By comparison, the 12VHPWR power connector ins only slightly shorter than 12-pin PCIe power connector from Nvidia, which measures 19mm in length.
 
Each power contact is rated for 9.2A, delivering up to 55.2A of continuous power via a 12V rail. Theoretically, the 12VHPWR power connector is good for up to 662.4W. However, it officially supports up to 600W. Amphenol ICC (via Olrak) has already listed the 12VHPWR power connector, which the brand has dubbed as the "Minitek Pwr CEM-5 PCIe Connector System." The company specified 9.5A per power contact, which is slightly higher than Igor's information. Amphenol ICC confirmed that the connector is designed for 600W graphics cards. It didn't specify whether it's for gaming or data center graphics cards. However, the company did list AI and cloud, gaming consoles, graphic interface, networking, server and storage as potential target markets for the connector.
 
With Ampere, Nvidia pushed the 12-pin PCIe power connector, but it never caught on. Only the Founders Edition utilized that connector. The chip maker's partners still preferred the standard 6-pin and 8-pin PCIe power connectors for their custom Ampere offerings. The introduction of the 12VHPWR power connectors will be troublesome for power supply manufacturers. They'll either have to design new products that comes with the 12VHPWR power connector or provide existing owners with an adaptor.
 
It's a shame that graphics card seem to be going in the other direction instead of becoming more power efficient. The GeForce RTX 3090 already took us to the 350W threshold with some custom models hitting the 450W mark. The existence of the 12VHPWR power connectors insinuates that future graphics cards may be even more power-consuming. Let's just hope that the 600W from the connector is just over-provision, and vendors actually won't have to use its maximum capacity on a consumer graphics card.
 
I really hope such a power connector will not be necessary due to rising energy costs. 
 


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    Hoggle
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    Re: PCIe 5.0 Power Connector Delivers Up To 600W For Next-Gen AMD, Nvidia GPUs 2021/10/10 02:53:46 (permalink)
    The other issue with raising the power is not only energy costs but the heat generated. 600W would take a pretty large cooler and be pumping that heat into the computer case then the room that the computer is in. Hopefully we don't need that kind of power since if we do it will really make the PC feel like a space heater.

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    Flint 1760
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    Re: PCIe 5.0 Power Connector Delivers Up To 600W For Next-Gen AMD, Nvidia GPUs 2021/10/10 04:01:28 (permalink)
    I think that power efficiency is going to become an issue soon and GPU manufacturers might want to consider that before it is forced on them.
     
    Even though I water cool, the heat has to go somewhere and in the winter it is great, but I don't need two stoves (two systems) heating the area in the summer.


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    ty_ger07
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    Re: PCIe 5.0 Power Connector Delivers Up To 600W For Next-Gen AMD, Nvidia GPUs 2021/10/10 05:32:05 (permalink)
    Flint 1760
    ...in the winter it is great, but I don't need two stoves (two systems) heating the area in the summer.

    It's not great in the winter either. Resistive heating isn't the most efficient way to heat. Using a heat pump can be twice as efficient using the same amount of power.
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    Flint 1760
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    Re: PCIe 5.0 Power Connector Delivers Up To 600W For Next-Gen AMD, Nvidia GPUs 2021/10/10 06:44:24 (permalink)
    ty_ger07
    It's not great in the winter either. Resistive heating isn't the most efficient way to heat. Using a heat pump can be twice as efficient using the same amount of power.



    I was being facetious.


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    Grey_Beard
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    Re: PCIe 5.0 Power Connector Delivers Up To 600W For Next-Gen AMD, Nvidia GPUs 2021/10/10 07:37:09 (permalink)
    Interesting that every other component in a rig has been on a mission to reduce power and increase efficiency, but the GPU.  maybe they think you buy the GPU, then rent the GPU out to. others.  On top of that, could imagine that the new 600W GPU from The Green Team would cost $10,000.  Nice to see that the efficiency gained by other components and their lower use of power is getting devoured by these power hungry video cards.  I guess having the motherboard plug into the GPU does look possible.



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    Miguell
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    Re: PCIe 5.0 Power Connector Delivers Up To 600W For Next-Gen AMD, Nvidia GPUs 2021/10/10 15:23:57 (permalink)
    electricity is  really expensive where i live.
     
    i was assuming that reducing the electrical consumption was the goal in the future.
     
    but i see its not the case and im not happy at all by this bit of news
    post edited by Miguell - 2021/10/10 15:26:12

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    Brad_Hawthorne
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    Re: PCIe 5.0 Power Connector Delivers Up To 600W For Next-Gen AMD, Nvidia GPUs 2021/10/10 16:33:01 (permalink)
    Get ready for more burnt up cards. There is no reason why we should be brute forcing 600W into a peripheral socket.
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    kram36
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    Re: PCIe 5.0 Power Connector Delivers Up To 600W For Next-Gen AMD, Nvidia GPUs 2021/10/12 06:19:25 (permalink)
    600W graphics card, the new form of deterring crypto mining on your graphics card?

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    Nereus
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    Re: PCIe 5.0 Power Connector Delivers Up To 600W For Next-Gen AMD, Nvidia GPUs 2021/10/13 20:02:46 (permalink)
    Miguell
    electricity is  really expensive where i live.
     
    i was assuming that reducing the electrical consumption was the goal in the future.
     
    but i see its not the case and im not happy at all by this bit of news

    Yup same.. I joined the EVGA Folding Team competition earlier this year which meant folding 24/7 for a few weeks on my 3090. The power bill went rocketing up. Had to stop folding after that unfortunately.
     

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