Here’s the complete specs for the Pi 3:

• SoC: Broadcom BCM2837 (roughly 50% faster than the Pi 2)
• CPU: 1.2 GHZ quad-core ARM Cortex A53 (ARMv8 Instruction Set)
• GPU: Broadcom VideoCore IV @ 400 MHz
• Memory: 1 GB LPDDR2-900 SDRAM
• USB ports: 4
• Network: 10/100 MBPS Ethernet, 802.11n Wireless LAN, Bluetooth 4.0

http://hackaday.com/2016/02/28/introducing-the-raspberry-pi-3/