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Nvidia RTX 5080 and RTX 5090 are reportedly set to have their designs finalised this month and their TDPs might be lower than some thought
I'm taking all this with a bucket of salt, personally.
Chinese tech site Benchlife reports that, if its sources are correct, two next-gen Nvidia GPUs might launch this month. Benchlife goes on to suggest such wattage could refer not to TGP (total graphics power) but to the "maximum heat dissipation capabilities of the radiator," which would make sense. That's why it's possible to increase power limits on some cards: because the cooler can handle a higher TGP than the GPU's default.
Or read this on r/technology