Seems I already have one
Saw the 3D Mark benchmark sale over at steam so downloaded the new tests.
Ran Firestorm on my new card.
And then I noticed I have a really new R9 280X in my rig. Who knew?
Look how Futuremark labelled my HD 7970 -
Hope you can make that out, tis a bit fuzzy, but their system id'd my card as a new R9 280X
I did compare my results with others running the HD 7970 on a A10 and seems I am right in the middle of the pack. My first result with everything on default was 5461. OC'd the 7970 to 1050 Mhz and the A10 to 42X from the stock 38X (that is the 'stock OC') and improved to 5712, only a 5% performance boost. Did try it at 44X and the system rebooted on its own, and tried 1100 Mhz and hit another reboot. Have not played at all with the voltage or other settings. I'm a real nob novice at OCing.
I'm going to buy the 3D Mark 11 now while it is still on sale for $6.76. See if it ID's my card correctly.
==============
Bought 3DMark11 and ran that test, and it too identified my HD7970 as a R9 280X. I'm going to let them know of the error of their ways (have you ever noticed how little appreciation you get when you point out the errors?). BTW 3DMark11 = 7183, meh