Chrome uses way more memory than Firefox, Opera or Internet Explorer - http://www.ghacks.net/2012...
Jun 22, 2012
from
"Opera is the most memory efficient browser, followed by Firefox
Opera needs 150 MB less of memory than Chrome for the ten websites
Firefox needs 100 MB less of memory than Chrome to display the ten sample websites
When it comes to virtual memory, both browsers use only half of what Chrome needs."
- LANjackal