On a heavy graphics site I frequent, Chrome hung a couple of times. Only for a few seconds, but I could see a surge in CPU activity. I've gone back to IE for the moment until I can check further. On the same site, over some years, IE has not shown this malfunction, but it could have been a hiccup.
Without, I hope, prejudice, I would say that in one aspect, the extra speed of Chrome may be due to its comparitive lack of built in features. But, on the other hand, FF has always been up to speed, and does have most of IE's features.