I.mx8m和i.mx8m mini都是四核A53处理器，为什么8M mini主频能达到1.8g hz而8M主频只有1.5g hz？此外，8m和8m mini开发评估板都有几条bus总线，bus总线都是通过什么样的接口与外接设备相连接？这款处理器能预装ubuntu16.04系统吗？
You can see the different from this table
i.MX 8 Series Applications Processors | Arm® Cortex®-A72/A53/A35/M4 cores | NXP
And then click on the name of the processor, you will see more details about the features of the processor.
For the EVK's BSP, we support Linux and Android.
i.MX Software | NXP
