Profiler

Profiler is an app that lets you monitor different parts of your Android in real time. You can keep tabs on your CPU frequency, GPU workload, how much memory is used on your RAM, network consumption, temperature, voltage and temperature.

One of the main points in Profiler is that it has a full dashboard with visible parameters all easily displayed right on your desktop. So, for example, you'll be in the know on exactly how much a game or app bogs down your Android's capacity in terms of its performance.