I just counted my open tabs in Opera 42, and quit it so I could see the memory use. 799 open tabs. 8.5GB. Restarted in around 10 seconds and it's currently u

I just counted my open tabs in Opera 42, and quit it so I could see the memory use. 799 open tabs. 8.5GB. Restarted in around 10 seconds and it's currently using around 2GB. "Delay loading of background tabs" is checked, which I believe is the default now. Not had any serious responsiveness problems. The browser extension I use to give me a list of tabs on my sidebar is a little slow when opening a new window, that's about it.