I think this forum needs to have a clear definition of what the term re-branding means because this is partly what's creating the confusion.
For example, do we mean re-branding as in "re-badging" such as when
HD5750/5770 became HD6750/6770 with absolutely 0 changes? Or are we using the term re-branding to mean taking an existing architecture/SKU and improving upon the predecessor as in HD4870 to HD4890?
I would not use the term re-branding for HD4890 even though underneath it's an identical architecture to the HD4870. It sounds to me like some people in this thread are using the term so loosely that they would call a Hawaii-based R9 380X with 10% faster clocks and 10% lower power usage a "re-brand."
But take a look at this -- at 1440P - a popular stop-gap resolution between 1080P and 4K against the current competition - XXX only leads a 290X by
13% according to Computerbase.
Now let's imagine a 10% faster R9 380X based on 290X at $399. Would you say that's a bad videocard? When a certain $330 card was hailed as revolutionary, it only beat an after-market R9 290 by 6-7% and undercut it by only $50-70 vs. market prices of the 290 on launch date. Yet, it was hailed universally as a price/performance "revolution." So, what would reviewers say about a 10% faster R9 290X "aka" R9 380X priced at $399? :hmm: