Overview
The Raspberry Pi 2 Model B is the second generation Raspberry Pi. It replaced the original Raspberry Pi 1 Model B+ in February 2015. Compared to the Raspberry Pi 1, it features:
A 900MHz quad-core ARM Cortex-A7 CPU
1GB RAM
Supports more OS, includes Windows 10
Features
Broadcom BCM2836 900MHz quad-core ARM Cortex-A7 CPU with VideoCore IV dual-core GPU
GPU provides Open GL ES 2.0, hardware-accelerated OpenVG, and 1080p30 H.264 high-profile decode
GPU is capable of 1Gpixel/s, 1.5Gtexel/s or 24 GFLOPs of general purpose compute and features a bunch of texture filtering and DMA infrastructure
1GB RAM
Boots from Micro SD card, supports Linux distros such as Fedora, Debian and ArchLinux
10/100 wired Ethernet
HDMI output
USB 2.0 interface x 4
4-pole 3.5mm stereo audio jack with composite video output
Micro SD card slot
Powered by 5V micro USB
Camera connector
40-pin 2.54mm expansion pinheader
Dimensions: 85mm x 56mm x 17mm