NanoPi NEO features Allwinner H3 CPU, a Quad-core Cortex-A7 Up to 1.2GHz CPU.
It’s available with 256MB DDR3 RAM or 512MB one with additional 2$ for the last one.The board has 10/100M Ethernet RJ-45 jack, USB host type A connector, MicroUSB connector for data transmission and power input, one MicroSD slot, serial debug header and 36 pins for GPIO.
Raspberry Pi Zero, the 5$ computer, had Broadcom BCM2835 1GHz ARM11 single-core processor, 40-pin GPIO header, mini-HDMI socket for 1080p60 video output and two MicroUSB one for power and one for data transmission with 40mm x 40mm dimension.
NanoPi price is 8$ plus 5$ for shipping, you can order some accessories like MicroSD card memory and USB power adapter from the product page.
For more detail: Meet NanoPi NEO The New Hero – The 8 $ Computer