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this is ggmania.com subsite AMD Releases Radeon Software Adrenalin 19.9.1 Drivers - TechAmok

AMD Releases Radeon Software Adrenalin 19.9.1 Drivers - [briefly]
06:38 PM EDT - Sep,04 2019 - post a comment

AMD today posted the latest version of Radeon Software Adrenalin 2019 Edition drivers. Version 19.9.1 beta comes with day-one optimization for "Gears 5," with up to 5 percent performance improvement in the DirectX 12 mode. It also expands the Vulkan API feature-set with four new extensions, "VK_AMD_device_coherent_memory," "VK_EXT_calibrated_timestamps," "VK_EXT_line_rasterization," and "VK_EXT_shader_demote_to_helper_invocation." Lastly, the drivers address a bug that causes GIGABYTE RGB Fusion 2.0 software to hang the system on graphics cards based on RX 5700-series GPUs.
The change-log follows.

Support For
  • Gears 5: Up to 8% performance improvement in Gears of War 5 running DirectX 12 on Radeon Software Adrenalin 2019 Edition version 19.9.1 vs. 19.8.2
Added Vulkan Support
  • 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.
Fixed Issues
  • Launching RGB Fusion 2.0 may cause a system hang on Radeon RX 5700 series graphics products system configurations.

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