Berdych didnt look tired, he just looked clueless. Since Federer declined it has often been a cointoss between them but on indoor surface Federer will always have the upper hand.
Federer played well, i'm not denying that. But besides the serve the rest of Berdych's game was no where near the level it should have been.
If Berdych plays well though he'll make the quarter-finals and hopefully we get that match. If anything he better not play crap and give Gasquet an even better H2H against him, disgusting H2H that really is.