Even Kaby Lake only supports HDMI 1.4, so there is no Intel-based laptop without a dedicated GPU on the market that is capable of HDMI 2.0. Your only choice is

Even Kaby Lake only supports HDMI 1.4, so there is no Intel-based laptop without a dedicated GPU on the market that is capable of HDMI 2.0. Your only choice is DisplayPort which you can use here via Thunderbolt 3.