Why it issues: Fashionable GPUs have pushed the venerable Eight-pin Molex connector to its limits. Nvidia denounced it with this technology’s Founders Version playing cards, which have a proprietary 12-pin connector; AIBs select between overstuffing hungry playing cards with three connectors or ravenous them with two.
A brand new energy connector, referred to as 12VHPWR, solves that downside by delivering as a lot energy as 4 Eight-pin Molex connectors — 600W. It’s a part of the PCIe 5.zero customary, and it might begin showing on GPUs subsequent 12 months.
Some producers have already listed their 12VHPWR plugs and cables, therefore the images. However the credit score for a lot of the particulars goes to Igor’s Lab, which realized in regards to the connector from energy provide producers and AIBs. The latter was relieved to be transferring on from outdated Eight-pins.
As its identify would counsel, the 12VHPWR connector has 12 energy pins/plugs. They’re three mm huge, as an alternative of four.2 mm like Molex. It additionally has 4 tiny contact pins/plugs on the underside to hold sideband indicators and a latch on high to safe the pins within the plugs.
Every of the 12 energy channels can carry at the least 9.2 A at 12 V. When all 12 channels are lively, it could actually carry a complete of 55.22 A or 662.4W. However it could actually’t be paired with GPUs that draw greater than 600W as a result of it wants ~10% redundancy.
Impressively, at 19 mm huge, it’s solely a fraction bigger than a single Eight-pin connector. It does require beefier cables, although, made out of extra premium supplies.
In the meanwhile, there aren’t any GPUs that require the complete 600W. The primary GPU that’s rumored to make use of the 12VHPWR connector is the (unconfirmed) RTX 3090 Ti, which could draw 450W.
However the connector is perhaps getting used to its fullest ahead of you’d count on. AMD and Nvidia’s subsequent technology of knowledge middle GPUs are believed to make use of power-hungry chiplet designs, and be twice as giant as their present choices, which already devour 250-300W.
Masthead credit score: Vagelis Lnz