Well GPU manufacturers aside, if a coin can be mined much more faster on nvidia cards than AMD
how is 11 MHash/s (780Ti stock) to 9 MHash/s (R9 290 OC) "much faster".
okay, we're not done with optimization yet, but I think you're overdramatizing this.
AMD radeon 7970?

7970 you mean config or what ?
Config is up post,
- TC me work 16384 - imho TC is not important in this coin.
- memory try underclock, as you can
- GPU overclock, as you can /// try find optimal ratio hashrate/Watt ///
= me work 280x /7970/ - undervolt to 1.081 v - 1100 Mhz - 100W - 6.45 Mhash
= or you can try overvolt and overclock - hashrate up 8 Mhash
- Intensity 20