https://wccftech.com/intel-arc-graphics-prototype-gpu-board-triple-8-pin-power-connector-teaser/

HotHardware recently interviewed Intel Graphics Fellow Tom Petersen about the recent Arc graphics card series release. Petersen shows an unreleased Intel GPU that features three 8-pin power connectors on the card during the discussion.

During Intel's ARC Desktop "Limited Edition" teaser, Petersen ensured that the new graphics card was a standard ATX-powered graphics card. The Intel ATX 3.0 specifications state that new PCIe Gen5 power connectors are used with graphics cards above 300W of power. By the reveal Petersen shows in the HotHardware YouTube discussion, the card displayed might be under 300W but that is where most Arc graphics cards are expected to land, even those based on the top ACM-G10 die.