A 6x faster than the previous – $35 PC is now available, featuring:
– A 900MHz quad-core ARM Cortex-A7 CPU (~6x performance)
– 1GB LPDDR2 SDRAM (2x memory)
– Complete compatibility with Raspberry Pi 1
See more on the official website: http://www.raspberrypi.org/raspberry-pi-2-on-sale/