Does HDMI 2.0 support a 3440x1440 resolution at 100Hz with HDR enabled simultaneously? If not, what is the oldest model of GPU (& cheapest) that supports HDMI 2.1 connections (and 2.1 speeds)? - Quora
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HDMI 2.0 vs 2.1: Facts to Know Before Paying Your Money
What is HDMI 2.1? An Overview - RTINGS.com
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HDMI 2.0 Specification and 4K UHD (2160p) Resolutions | Audioholics
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