3DMark is a good app for tablets Android. It is produced specially for fans of "fast" iron, using it you can test the performance of your device and then compare the results with devices from other users, while making the appropriate conclusions. The comparison is available and tablets on iOS and Windows. 3DMark - free download you may have.
- professional level diagnostics;
- popularity in many countries of the well-known large companies;
- compatible with 1000 different Android devices.