It is explained here : https://trac.webkit.org/wiki/WebKit2 https://trac.webkit.org/wiki/WebKit2 and here : http://webkit.sed.hu/blog/20110120/webkit2-memory-c

It is explained here : https://trac.webkit.org/wiki/WebKit2 https://trac.webkit.org/wiki/WebKit2 and here : http://webkit.sed.hu/blog/20110120/webkit2-memory-consumption-process-models-vol-1 http://webkit.sed.hu/blog/20110120/webkit2-memory-consumptio... Chrome duplicate tons of data structures, Webkit2 shares more, but Firefox without multi process is more efficient.