There was an epic post from an NVidia developer: https://www.gamedev.net/forums/topic/666419-what-are-your-opinions-on-dx12vulkanmantle/?do=findComment&comment

There was an epic post from an NVidia developer: https://www.gamedev.net/forums/topic/666419-what-are-your-opinions-on-dx12vulkanmantle/?do=findComment&comment=5215019 https://www.gamedev.net/forums/topic/666419-what-are-your-op... In brief: current APIs are a leaky abstraction, and a disproportionate amount of time is spent in debugging the curious "competition" between applications/libraries and drivers, at least, for relatively complex applications.