AMD Radeon Adrenalin Edition 19.9.1 WHQL driver download

Radeon Software Adrenalin Edition, designed to give gamers deeply immersive gameplay and inspired by today’s era of social, connected gaming. Should you like to share or read up on user experiences, we have an open discussion thread open on these drivers right here.

VK_AMD_device_coherent_memory
This extension adds device coherent and device uncached memory types. Device coherent and uncached memory are expected to have lower performance for general access than non-device coherent memory but can be useful in certain scenarios particularly so for debugging.
VK_EXT_calibrated_timestamps This extension provides an interface to query calibrated timestamps obtained quasi simultaneously from two time domains such as host and device time domains.
▪ VK_EXT_line_rasterization - This extension adds some line rasterization features that are commonly used in CAD applications and that are supported in other APIs like OpenGL. These features include Bresenham-style line rasterization, smooth rectangular lines (coverage to alpha) and stippled lines for all three line rasterization modes.
▪ VK_EXT_shader_demote_to_helper_invocation - This extension adds Vulkan support for the SPV_EXT_demote_to_helper_invocation SPIR-V extension. The SPIR-V extension provides a new instruction that allows shaders to "demote" a fragment shader invocation to behave like a helper invocation for its duration. The demoted invocation will have no further side effects and will not output to the framebuffer but remains active and can participate in computing derivatives and in subgroup operations. This is a better match for the "discard" instruction in HLSL.