At first, we have to say that Rockchip RK3399 is the BEST CPU in 2017 ABSOLUTELY.
But, RK3328 is a new CPU born in April 2017, which is more cost-effective than RK3399.
The structure of SoC Rockchip RK3399 is not only quad-core Cortex A53, but two Cortex A72, GPU Mali-T860MP4 and power video processing with support for the format H .265 with 4K resolution and frequency to 60 Hz.
Check the chart find know more about RK3399 and RK3328.
Click to check the HOT RK3328 tv boxes.
Check for more about S905X, S912, RK3229, RK3328, RK3399: