Hardware improvements from the Pi 3 to Pi 3 B+
The Pi 3 Model B+ is based on the same quad-core, 64-bit processor, as the Pi 3 Model B. Like the Model B, the B+'s is based on a Arm Cortex A53 architecture. However, the B+ ups the speed of the CPU to 1.4GHz from 1.2GHz in the original Model B, an increase of 16.7%.