This is not JSC, and just using UIWebView, but would be good enough to estimate approximated difference. http://iao.fi/myposts/uiwebview http://iao.fi/myposts/

This is not JSC, and just using UIWebView, but would be good enough to estimate approximated difference. http://iao.fi/myposts/uiwebview http://iao.fi/myposts/uiwebview The author is claiming the difference would be about 5x. I think that's reasonable.