That 600 figure is a floor set for insured lending, not a guarantee of approval. Lenders also weigh income stability, existing debt and the size of your down payment, so two applicants with the same score can get different outcomes depending on the rest of the file.
A higher score generally means more competitive rate offers and fewer conditions attached to approval, which is why it is worth checking your credit report and clearing up any errors well before you start shopping for a house.
Once financing is lined up, the next real question is what a specific Saskatoon house is actually worth. Get your hand-reviewed valuation from Joel Dyck.