It`s typically what you will see.
The result is due to a fact that as soon as you do something that requires Gpu intensive tasks.
Or the the Gpu of the graphics card to be utilised in any way.
The power consumption rises, due to the clock speed of the Gpu speed and the memory speed of the card being increased because of the task it is performing.
The more of a percentage of a Gpu is used for in raw computing power and processing or utilization the more power is required to run it and keep it in a stable operating state + voltage.
Just like if you did a heavy work out in a gym.
The result is you would sweat, become hotter.
And require more food to keep your energy up, so you don`t pass out or faint.
When doing strenuous activity...