I am using LPC2138, is u32 faster than u8?

I need a fast for loop using i as the counter. Do I need to define it as 4 bytes variable or 1 byte? The counter will never go over 64. So logically u32 is same as u8. But which one is faster? Thanks Paul

I am using LPC2138, is u32 faster than u8?

This is not really a FreeRTOS.org question – but yes.  u32 is better.