SXT series

Compare with STX series, RB711GA-5hnd is same performance?
And if not concern RF part, RB411GL is same performance with STX series?

CPU:

RB411GL has 680MHz CPU
RB711GA has 400MHz CPU
SXT G has 400MHz CPU

TX power:

SXT has 26dBm max TX power
RB711GA has 25dBm max TX power