What PTE score do you need for the University of Alberta?

Neither page mentions PTE Academic Online or PTE Core. The graduate manual says applicants who take PTE must request that the University be given access to their score, and that departments should receive results directly; it adds that scores more than two years old cannot be verified, so you would normally need to retest.

On the undergraduate page, IELTS Academic (in person or IELTS Online) needs 6.5 with no band below 6.0, which is the IELTS counterpart to PTE 61 with 60s. The spoken English table asks IELTS Speaking 7.5, TOEFL Speaking 5.0 or Duolingo 140, with no PTE option.

Undergraduates can meet the requirement with six credits of transferable university English at B+ or better, or by completing the University's EAP 136 and INT D 137. For graduate study, a department may recommend conditional admission subject to passing EAP 500 at the Faculty of Extension before the programme starts. Neither route is tied to a PTE score on these pages.

Requirements vary by programme and change between admissions cycles. The score that binds you is the one on your University of Alberta programme page and in your offer letter, so check it there before you book a test.