777newbie - the Airbus equivalent of your EFB is a laptop known as the LPC (Less Paper Cockpit). On the T/o perf page, as well as the speeds and T Flex, it gives the EO Accn Alt which it corrects for temperature as well as for obstacles (default is 1000agl.) Thus it will wander up and down depending on the deviation from ISA as well as in sympathy with the obstacles etc.
Maybe the Boeing machine also corrects for Temp.
Regards
mcdhu