Amd Volcanic Islands details

[dasa]

Where are you pulling out this figure that Titan is 40% faster than the 7970, from most of the benchmarks i have looked at this really is not the case especially for the ghz model.

maybe 40% if at the same clock speed as titan and since 7970ghz is clocked 20% faster...
there is some games where titan does win by around 40% although on average it may be closer to 25%
so it would need to be 40% faster to win outright