Popular hardware leaker @kopite7kimi claims from a source that the GeForce Blackwell GPUs will have a substantial increase in TGP (Total Graphics Power) requirements. According to their post on X, all SKUs would have “some increase in power consumption, with higher SKUs increasing more.” This news ties in with leaked information from Seasonic’s PSU wattage calculator, which showed the RTX 5070 requiring 220 watts (up by 20 watts from the 4070 and matching the 4070 Super) and the RTX 5090 needing 500 watts (up from 450 watts in the RTX 4090).
As with all leaks and rumors, there's at present no official information from Nvidia. Still, everything we know about Nvidia Blackwell suggests it's going to be big, and without a major bump in process node technology, higher power draw seems likely. At the same time, Nvidia could keep TGPs similar to the 40-series and leave the truly high power draw for factory overclocked AIB cards.
While the kopite7kimi agrees with the Seasonic leak that show the RTX 50-series GPUs having greater power consumption that the previous generation, they claimed that the power increases will be greater than what previous rumors. One response to their Tweet says, “I say 550W for 5090,” while another says, “Is 5070 more than the rumored 220?” and their response to both replies is a simple “more.”
