A TPU type is a configuration that specifies the TPU hardware version and the number or arrangement of TPU devices. Users select a TPU type when creating TPU resources for a workload.
A configuration of one or more TPU devices with a specific TPU hardware version. You select a TPU type when you create a TPU node on Google Cloud. For example, a TPU type is a single TPU v2 device with 8 cores. A TPU type has 256 networked TPU v3 devices and a total of 2048 cores. TPU types are a resource defined in the Cloud TPU API.