i5 6300hq,i56300hq

我的i56300hq突然变成双核2线程了,娱乐大师跑分也只有1万7,求大神
想知道i7 6700hq和i5 6300hq差别大么?
sr2fp (intel cpu core i5-6300hq)
863779-601 863779-001 la-c401p w i5-6300hq cpu w m1000m graphics
intel 酷睿 i5 6300hq sr2fp bga全新原装 笔记本电脑cpu