Chrome with only 1 page loaded and only the google voice extension running (but not logged in), used over 300mb ram. screw my sheetmetal and shiver me...!! Thats 530mb vs 840 with Chrome!!!
Opera on the other hand managed to use more... only when I loaded 20 TABS AT ONCE, and just barely more if that considering the load on it, and it has so many more features that chrome just lacks and probably doesnt even consider adding - for instance *smart* password management, tab groups... Below you can see 20 tabs only uses 949mb.
The only good thing about chrome is that it works good with google web pages - but uses 500mb ram with 3 tabs open - forget that. Ohh and blogger still SUCKS on chrome.