与英特尔之前的产品相比，Lynnfield的性能如何？

Core i7-870 outperforms the best of the mainstream Inte Core2 Quad processor family；
Core i7-860 outperforms the Intel Core 2 Quad processor Q9550 and the Intel Core i7-920 processor
Core i5-750 outperforms the Intel Core 2 Quad processor Q9400 processor