presidential
executive power is vested in the president this includes execution of laws pass by congress, appointing
powers, foreign police etc...
legislative powers is vested in congress or legislature this powers includes legislation of statutes, power of the purse and budget, power of taxation etc..
judicial powers is vested in the judiciary this powers imclude power to interpret the constitution and statutes. power of judicial review and resolve conflict between the three bramches of government etc..
parlimentary
president only acts as head of state or ceremonial head of the country.
the parliament holds the power of both legislature and executive as the prime minister is head of the government.
judiaciary same powers.