And I was looking for a Benchmark
Added Vulkan support to the API Overhead feature test. Use the API Overhead feature test to compare Vulkan, DirectX 12, and DirectX 11 API performance on your PC. The Vulkan test requires compatible video drivers with Vulkan support. Check with your GPU vendor for Vulkan driver support if your hardware is unable to run the test. Note that the Vulkan test replaces the Mantle test found in previous versions of 3DMark.
http://www.3dmark.com/aot/201820 at the top Vulkan draw calls per second: 20,766,916
(NVIDIA GeForce GTX 1070(1x) and AMD Ryzen 1800X)