This innovation allows you to compare the performance of the system in Vulkan, DirectX 12 and DirectX 11 modes using one simple test. On this occasion, Futuremark even introduced a special trailer:
Of course, the test is specific — It only allows you to evaluate how better this or that API copes with the increase in the number of requests for the drawing and how soon the CPU begins to act as a limiting factor. Modern API DirectX 12 and Vulkan, supporting lower -level GPU access and optimized for working with multi -core processors, of course, are ahead of the DirectX 11 in this specific task.
This superiority, however, does not mean that in real games the separation will be just as significant: developers often do not use the advantages of modern equipment for compatibility purposes. However, the number of requests for the drawing in modern games is growing rapidly and reaches many thousands per frame, creating a load on CPU. Vulkan and DirectX 12 allow you to release the processor resources, so that developers can use more objects, textures and effects on the screen.
The 3dmark API Overhead test gradually increases the number of cesspool requests until the frequency of frames in each of the APIs will decrease to 30 per second. The higher the resulting value of requests, the more effective a particular API on a particular system in this task. You can download 3dmark either on the Futuremark website or on Steam.