AMD has confirmed that its high-end RDNA 3 graphics cards won’t use the same power adapters employed with the Nvidia RTX 4090, which hit the headlines recently with some reports of issues around melting (yes – really bad news).
For those who missed it, these are 12VHPWR power adapters used by people to connect the 16-pin RTX 4090 cable (for ATX 3.0, the newer PSUs) to an ATX 2.0 power supply (which the vast majority of owners of PC still has).
This was confirmed by AMD’s Scott Herkelman, who tweeted in response to a comment by Kyle Bennett about Navi 31 graphics cards allegedly not using the 12VHPWR adapter (in the cases of Team Red reference cards and 3rd party cards). tip of the hat to VideoCardz (opens in new tab) for detecting this, by the way.
The Radeon RX 6000 series and upcoming RDNA 3 GPUs will not use this power connector.October 25, 2022
Herkelman makes it very clear that no future RDNA 3 graphics card will use the adapter, which would basically only apply to high-end models, which are the most power-hungry of course. The Navi 31 is the chip that will be used to power what will theoretically be the RX 7900 XT and perhaps the 7800 XT, the first two RDNA 3 GPUs rumored to be released by AMD.
This still needs to be confirmed, of course, but now we know they won’t be using the 12VHPWR adapter.
Analysis: Winning the energy and efficiency battle
What we’re not told here is what AMD will actually use – presumably 2 x 8-pin or 3 x 8-pin connectors for the flagship (maybe the former for the 7800 XT and the latter for the 7900 XT – but that’s It’s just pure guesswork).
Of course, we don’t know how much power the RDNA 3 graphics cards will consume, but rumor has it that the GPUs will use considerably less than Nvidia’s Lovelace range, and certainly AMD’s flagship will come in less than Nvidia’s demands. RTX 4090. Even though the wattages are increased from AMD’s current generation cards (Team Red has said this in the past, of course).
Having this adapter issue confirmed has certainly caused a sigh of relief on GPU-related online forums, particularly in light of the melted cable incidents (two of them so far with the RTX 4090) mentioned at the beginning. Nvidia is investigating these occurrences, by the way, and we hope that we will soon hear something more concrete about exactly what is happening with these reports from affected 4090 owners.
Likewise, we’ll soon know a lot more about RDNA 3 graphics cards, because as you may have seen, AMD is officially releasing – or at least revealing the initial GPUs – at an event on November 3rd. on sale until December, if the rumor is correct.
Whatever the case, we’re already prepared to expect a 50% increase in performance per watt for RDNA 3 (the same generation jump made by RDNA 2, in fact); meaning how much in terms of raw frames per second players will receive in relation to energy usage. And with the energy bill going up, this could become more of a consideration, certainly for the budget conscious.