Performance Penalty from Enabling HDR at 4K Lower on AMD Hardware Versus NVIDIA

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The oldsters over at have took it into their fingers to check precisely how a lot of an influence >(if any) would activating HDR on a 4K panel have an effect on efficiency cross completely different configurations. Supposedly, HDR should not impose any efficiency penalty on GPUs that have been designed to already take into account that output on a degree; nonetheless, as we all know, expectations can generally be improper.

Evaluating an AMD Vega 64 graphics card towards an NVIDIA GeForce 1080, the parents ate Computerbase arrived at some fairly fascinating outcomes: AMD would not incur in as massive a efficiency penalty (as much as 2%) as NVIDIA's graphics card (10% on common) when going from normal SDR rendering by way of to HDR rendering. Whether or not attributable to driver-level points or not is unclear; nonetheless, it may even have one thing to do with the way in which NVIDIA's graphics playing cards course of 4K RGB indicators by making use of colour compression all the way down to diminished chroma YCbCr 4:2:2 in HDR - an additional quantity of work that might scale back body rendering. Nonetheless, it is fascinating to note how Mass Impact Andromeda, one of many games NVIDIA gave a giant advertising and marketing push for and that showcased HDR implementation, sees no efficiency differential on the inexperienced .I additionally appear to recollect some points relating to AMD's body time efficiency being abysmal - trying at Computerbase's outcomes, howveer, these occasions appear to be behind us.


Source : TechPowerUp

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