I'm struggling to fit the P8z77 v in my budget at the moment and need to know what is the difference between the both, performance wise. I know there is less PCI slots and no Built in Wi-Fi on the LX but what else ar the differences ?
When you have multiple models within the same family, such as the P8Z77, the difference is generally to do with features. Such as those you mentioned: Fewer PCI slots and no wifi. From a performance standpoint, they should be identical given the same set of components.