Improvement in this case is somewhat ambiguous. Real world performance vs benchmarks isn't as telling as we would like in CPU comparison. Certainly the processors are more efficient, which allows higher clocks (in this case ~150% higher). New architectures usually bring improvements to performance. You have software utilizing the additional threads and and cores far better then the Q9550 would allow. Improvement yes, but the score encompasses a lot more then what the average user might see as improvement in their usage.