Raspberry Pi 3 Model B+ Bluetooth 4.2, 1.4GHz quad core processor.

Raspberry Pi 3 Model B+
Support for 5GHz Wi-Fi, Bluetooth 4.2, and a faster 1.4GHz quad core processor.
Faster wireless connectivity of the 3 B+ should be a massive help for home automation projects.
The B+'s main improvement over the 2016 Raspberry Pi 3 Model B is a boost to processor speed ,while the B+ shares the same quad-core, 64-bit CPU it has been clocked at 1.4GHz, a 16.7% increase over the Pi 3 Model B.
That extra performance doesn't come at the cost of stability, with a new heatspreader on top of the CPU helping keep temperatures under control and reducing instances of throttling compared to the Pi 3 Model B.
A new dual-band Wi-Fi antenna adds support for 2.4GHz and 5GHz 802.11 b/g/n/ac Wi-Fi. That 802.11ac Wi-Fi promises more than double the throughput of the 802.11n Wi-Fi on the Raspberry Pi 3 Model B
Another small improvement is the addition of support for Bluetooth 4.2/BLE, a step up from the Bluetooth 4.1 support in the Raspberry Pi 3 Model B.
The Pi and its official Raspbian OS excel when it comes to teaching users about computing. The OS is loaded with software for learning and practicing programming , including IDEs for the Python and Java programming languages, and for piecing together Internet of Things appliances using Node.js
The B+ has the benefit of sharing these advantages, while also being the most powerful Pi to date.