Monday, February 19th 2024
12V-2X6 "H++" Standard Touted to Safely Deliver 675 W
Online hardware communities continue to discuss the 12VHPWR connection standard's troubled existence, while revised technology gets worked on—quietly—in the background. PCI-SIG's 12V-2x6 connector was first revealed last summer, signalling an alternative power delivery method for high-wattage graphics cards. Past TPU reports show that the 12V-2x6 16-pin design has already popped up on select NVIDIA Founders Edition cards, GeForce RTX 40 SUPER custom graphics card designs, and various new generation power supplies. Earlier today, Алексей (AKA wxnod) took to social media and posted an image of the freshly deshrouded "H++" 12V-2x6 (total design limit: 675 W) socket, as well as a shot of the familiar "H+" 12VHPWR (max. 600 W).
This fifth generation socket design largely rolled out with Team Green's GeForce RTX-40 SUPER card series, although wxnod notes that exceptions do exist: "Some AIC GeForce RTX 4070 SUPER, 4070 Ti SUPER and 4080 SUPER cards are still using the H+12VHPWR interface." The H++ identified 12V-2x6 design's power limit peaks at 675 W—a technical breakdown from last July revealed that 75 W comes from the expansion slot, while the big 600 W portion flows through the 16-pin connector. As mentioned before, 12V-2x6 debuted on a few Non-SUPER cards back in 2023, but last month's SUPER series product launch marked a more comprehensive rollout. AMD has indicated that it is considering an adoption of Gen 5 H++ in the future, but we have not heard much on that subject since last August. A new generation 16-pin PCIe 6.0 power connector design was linked to the upcoming NVIDIA RTX 50-series of "Blackwell" GPUs, but Hardware Busters has refuted rumors generated by Moore's Law is Dead. Team Green is expected to remain faithful to "H++" 12V-2x6 with the launch of next generation graphics cards.
Sources:
wxnod Tweet, Wccftech, Beebom
This fifth generation socket design largely rolled out with Team Green's GeForce RTX-40 SUPER card series, although wxnod notes that exceptions do exist: "Some AIC GeForce RTX 4070 SUPER, 4070 Ti SUPER and 4080 SUPER cards are still using the H+12VHPWR interface." The H++ identified 12V-2x6 design's power limit peaks at 675 W—a technical breakdown from last July revealed that 75 W comes from the expansion slot, while the big 600 W portion flows through the 16-pin connector. As mentioned before, 12V-2x6 debuted on a few Non-SUPER cards back in 2023, but last month's SUPER series product launch marked a more comprehensive rollout. AMD has indicated that it is considering an adoption of Gen 5 H++ in the future, but we have not heard much on that subject since last August. A new generation 16-pin PCIe 6.0 power connector design was linked to the upcoming NVIDIA RTX 50-series of "Blackwell" GPUs, but Hardware Busters has refuted rumors generated by Moore's Law is Dead. Team Green is expected to remain faithful to "H++" 12V-2x6 with the launch of next generation graphics cards.
19 Comments on 12V-2X6 "H++" Standard Touted to Safely Deliver 675 W
At this rate, in a couple of years, Americans will have to run their computers off their ovens' sockets. </s>
Seriously, I think it's about time the industry goes for another efficiency-first phase. A few years of Kepler-esque products would do everyone well.
625 watts on the GPU though… That’s almost comical. What are the coolers for something like that would be like? 5 slots with 3 fans and another on the side, like some Inno3D designs? A Fury-esque AIO?
so ya 16 awg wire
max power consumption comes from two sources, the pcie connector/16pin AND peg connector.
12v2x6(h++) means 16pin=600w + peg=75w only, not new 16pin=675w.
stop copying news plus misunderstanding the source.
Unless they've standardized on silver-cadmium new-geometry pins, I'm not seeing how this can safely carry those kinds of currents.
Perhaps, the entire industry has forgotten the safety margins in EPS and PCI-e power standards?To give some perspective. 625W is roughly half the max-rated output of an HP Common Slot redundant PSU module.
That PSU is about the size of a ' 2"x4" ' stud, and the fingers for GND and +12V are double-sided.
Additionally, the 'finger' style acts as a heat-sinking plane for any variations in contact-to-contact resistance.
My point:
At no time, at no place, for no application,
has such a glaringly lacking 'safety margin' been acceptable. Basic observed physics/thermodynamics + observations of past high-current +12V interfaces, shows there's something fundamentally wrong about +12V2x6/HPWR
Or they could just not put that much power through a gaming card.
Coming Q4 24!
Buy two and save, save, save!
12VHPWR ver.10 cable included free with each card.
:kookoo:
At some point all of these factors will put pressure on pcie-sig and nvidia to fix - or rather un-screw - the situation.