Why animation rendering uses CPU not GPU?

Hello!

I render animation where camera moves towards sphere that has perforated rubber appearance.

CPU:  Intel Core i7-3770 @ 3.40GHz

GPU:  Nvidia Quadro M2000  that is recomended for SolidWorks

and rendering utilizes CPU "only"

what is wrong? where is bottleneck?

Thank you!

SolidworksPhotoview 360