The Netherlands jumped out to an early 16 points lead capped by a three-pointer by Francisca Donders (6 assists) with 3:25 to play in the first period.
Hungary would pull to within two points midway through the second but the Netherlands went into halftime up 41-31.
In the second half Hungary fought back and a jumper by Horvath brought her team to within two points (61-59) with over three minutes to play in the game.
But a jumper by Karina vad den Nienwendjik (10 points) sparked a 6-0 run by the Dutch to seal the victory.
The Netherlands will face the Slovak Republic, which downed Portugal 58-48, in the Semi-Finals with the winner moving up to Division A.
The Slovak Republic's top scorer was Nikola Kovalova with 18 points while Joana Bernardeco did her best with 11 points to keep Portugal close.
The other Semi-Final match-up is Belgium versus Romania after their Quart-Final wins.
Belgium outlasted Israel 85-73 behind Charlotte Ippersiel's 22 points and 13 rebounds while Romania held on to beat Greece 64-56 led by Claudia Pop's 18 points.
In the Classification Round Austria got a close 68-62 win over F.Y.R. of Macedonia.