Vulkan targets high-performance real-time 3D-graphics applications, such as video games and interactive media, and highly parallelized computing. Vulkan is intended to offer higher performance and more efficient CPU and GPU usage compared to the older OpenGL and Direct3D 11 APIs.

With a simpler, thinner driver and efficient CPU multi-threading capabilities, Vulkan has less latency and overhead than alternatives, such as OpenGL or older versions of Direct3D. If you use Vulkan, NVIDIA GPUs are a no-brainer.

the feeling that you should do something because it is your duty: For Anne, the call of duty was strong. These heroes courageously answered the call of duty. Fewer examples. The doctor faithfully followed his profession, never hesitating to respond to the call of duty.

The Call of Duty series games are made in IW engine by Infinity Ward. You probably would've seen the name when you start any COD series game. Almost every game shows the game engine which it is built in. The IW game engine uses c++.