Unity - (CPU) Benefit of Positioning Techniques

Question

(In a 2D game) Is there a (significant) CPU benefit when using the Wwise Unity Integration between:

 

1. Taking the 3D Position of a (Unity) Game Object and using it to set a sounds position via Wwise's 3D setting.
2. Selecting only one dimension of the position of (Unity) Game Object and using an RTPC to set the pan of a 2D sound.

 

i.e.

By abstracting the position from Unity for "2D Sounds" is there a CPU savings at runtime?

Is option 1 "automatically" being processed, regardless?

 

Thanks so much!

-damian