This　paper　proposes　the　helper　thread　prefetch　request　breakdown　to　differentiate　between　different　performance　gains　achieved　by　different　helper　thread　prefetch　parameter　combinations.　Cycle-accurate　simulation　results　of　selected　benchmarks　in　Olden　and　CPU2006　show　that,　the　selection　of　appropriate　helper　thread　prefetching　parameters　can　maximize　the　potential　of　helper　thread　prefetching,　based　on　the　different　memory　access　patterns　of　target　applications.