I am writing this from China and unfortunately it is the other way round. Tor is beaten by the Great Firewall of China.
Since the list of nodes is available to anyone who connects to the Tor network, blocking them is trivial. So most of the time it is not possible to connect. And when you do manage to connect the speed will make 14.4 kbit/s modem feel fast.
Tor has a way to work around this - bridge nodes. They're hidden and their IPs are distributed in various non-batch forms (e-mail, social networks, http://bridges.torproject.org).