Allardyce was delighted to take three points away from his old club.
"I think this was my most satisfying win," he told whufc.com. "I thought the win at QPR was a good performance but we have to look at where QPR are. They are struggling and we've taken advantage of that. Newcastle were a fantastic force at home last season and have started the season well with some good performances.
"It was a fantastic professional performance by all the players and a fantastic three points. Winning a Premier League game away from home is a tough ask so to beat Newcastle at Newcastle is obviously very pleasing.
"It was a fantastic result and a clean sheet - you couldn't ask for any more."