iPad Pro has 12.9 inch display in 4:3 aspect ratio with Apple's new A9X 64-bit processor which is described as desktop-class CPU.
To incorporate in more input, they had the smart keyboard which also doubles as a smart cover exclusively for iPad Pro and the Apple Pencil which can do a lot of controls like light stroke for thin line and heavier stroke for thicker lines.
iPad Pro prices start with 32 GB variant at US$799, 128 GB variant for US$949 and US$1079 for 128 GB version with LTE. The smart keyboard has an SRP of US$169 and US$99 for the Apple Pencil