Not so sure about frame, they solved 90% of the problems that SPA's are used to solve today, they could have been improved rather than replaced.
Frames were a nightmare. You can't link to a page in frames, you can't bookmark it either. Frames break the back button. Come in via search engine? You're only in the main frame, your navigation frame is missing. Want to print? Lol, good luck with that. You always ended up (either intentionally or unintentionally) with a browsing session within someone else's unrelated frameset.
I also heard they were bad for screen readers.