SK9822 RGB LED with clock and data

Nowadays , there are a new led come out , what is it ? what advantage it have ?
yeah , it is SK9822 LED ,it have Data and Clock , which is mean transfer the data is much faster , and it is stable , what is different between SK9822 and SK6812,
   Frist SK9822 Have data and clock , and SK6812 only have data.
   Second , SK9822 led now only Have rgb type , SK6812 include SK6812 RGB LED , SK6812 RGBW LED SK6812 RGBY LED.
   Third , SK9822 led is 6pin , just like the following picture

        SK6812 led is 4pin , 

       In addition ,SK9822 only have 5050 type now , SK6812 have 3535 type 5050 type now .