Either way. If driver performance increases are cumulative,and I'm sure that's correct,there's still NO way my Titans have increased performance by 50%. That kind of a performance increase would be like adding a third Titan. Think about it. 50% with just a driver update? I honestly don't think so.Aren't they the numbers since the last MAJOR release?
That is to say that the increased performance from one patch to another is cumulative rather than additive.