Comment by Hikikomori

Yeah but that doesn't mean that much of Mantle is recognizeable in Vulkan, because Vulkan wanted to cover the entire range of GPU architectures (including outdated and mobile GPUs) with a single API, while Mantle was designed for modern (at the time) desktop GPUs (and specifically AMD GPUs). Vulkan basically took an elegant design and "ruined" it with too much real-word pragmatism ;)