Operating Frequency

A next-gen compute node contains three distinct processors: a CPU, a GPU, and a TPU. They operate at three distinct frequencies: 1 GHz, 2 GHz, and 3 GHz.

You are given the following facts:

1. The CPU operates at a higher frequency than the TPU.

2. The component operating at 2 GHz is NOT the GPU.

3. The GPU operates at a lower frequency than the TPU.
   
   What is the operating frequency of the TPU?