I agree, all of this should be taken with a sack full of salt.
All what these rumours do is cause AMD fanboys indigestion.
The thread title should have been tagged or suggested as rumours.
I've been reading the chinese page the figures came from and I cant see where it actually says the source of the graphic so its not worth further discussion.
What I did find funny was a couple of threads on the chinese forum complaining the 1070 is expected to be 5000 yen (comments say it should be 2000-3000 yen). Although my translation might be off.
5000 yen is £31.

Or you sure they don't mean "yuan", which is the China currency and 5000 yuan is around £500.