The Raspberry Pi 3 Model B is the third generation Raspberry Pi with a 64-bit 1.2GHz quad-core processor, 1GB of RAM, Wi-Fi (b/g/n), and Bluetooth 4.1

The Raspberry Pi 3 Model B is the third generation Raspberry Pi with a 64-bit 1.2GHz quad-core processor, 1GB of RAM, WiFi (b/g/n), Bluetooth 4.1! and power supply.

PRODUCT DESCRIPTION
Overview

The Raspberry Pi 3 Model B is the third generation Raspberry Pi with a 64-bit 1.2GHz quad-core processor,1GB of RAM, WiFi (b/g/n), and Bluetooth 4.1.
Compared with the Raspberry Pi 2 the CPU is running at a 33% faster clock rate (1.2GHz vs 0.9GHz) the more modern core also means a more efficient instruction set, especially when performing operations on 64-bit values.
Video and 3D performance has also seen a bump with the VideoCore being clocked at 400MHz for video processing (up from 250MHz) and the 3D graphics processor running at 300MHz (up from 250MHz).
In general use you can expect the Raspberry Pi 3 to perform around 50% quicker than the Raspberry Pi 2 running the same software.
Features

• Broadcom BCM2837 64bit ARM Cortex-A53 Quad Core Processor SoC running @ 1.2GHz
• 1 GB RAM
• 4 x USB2.0 Ports with up to 1.2A output
• Expanded 40-pin GPIO Header
• Video/Audio Out via 4-pole 3.5mm connector, HDMI, CSI camera, or Raw LCD (DSI)
• Storage: microSD
• 10/100 Ethernet (RJ45)
• BCM43143 WiFi on board
• Bluetooth Low Energy (BLE) on board
• Low-Level Peripherals: 27 x GPIO UART I2C bus SPI bus with two chip selects +3.3V +5V Ground
• Power Requirements: 5V @ 2.4 A via microUSB power source
• Supports Raspbian, Windows 10 IoT Core, OpenELEC, OSMC, Pidora, Arch Linux, RISC OS and More!

Connectors

• Ethernet: 10/100 BaseT Ethernet socket
• Video Output: HDMI (rev 1.3 & 1.4) ; Composite RCA (PAL and NTSC)
• Audio Output: Audio Output 3.5mm jack; HDMI; USB 4 x USB 2.0 Connector
• GPIO Connector: 40-pin 2.54 mm (100 mil) expansion header: 2x20 strip; Providing 27 GPIO pins as well as +3.3 V, +5 V and GND supply lines
• Camera Connector:15-pin MIPI Camera Serial Interface (CSI-2)
• Display Connector: Display Serial Interface (DSI) 15 way flat flex cable connector with two data lanes and a clock lane
• Memory Card Slot: Push/pull Micro SDIO

GPIO and layout

The GPIO header and layout remains the same as before so all of your existing HATs and add-on boards will work fine with the Raspberry Pi 3.
Some cases will not be ideal:

• the indicator LEDs have moved (to accommodate the Wireless LAN antenna)
• the microSD slot is no longer spring-loaded meaning a little more access space is required
• the processor benefits from a little more venting for heat management
• some of the smaller components on the board have moved
• it's likely that cases made from metal will cause signal issues with the Wireless LAN and Bluetooth.

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