LOL at all the people chiming in to make sure they register their disappointment. We don't even have solid data yet! How can you be disappointed in the non-existent? And the cherry-picking of a couple of hypemeisters to denigrate anybody who commented positively about the RX 480 is hilarious. Do you also punch children and small animals for failure to excel in high-powered executive jobs? The 480 is a 380 replacement. Anything beyond 390 performance meets the minimum requirements for a new card. 980ish performance (which it will most likely have) makes it a very nice value.
Oh, and I don't even know what to say about the 'leaked benchmarks' in the OP. 'Take everything with a grain of salt unless it makes an AMD product look ridiculously bad' seems to be the SOP for a certain sub-section of posters.