Ivy has intel hd4000 which along with your discrete gpu makes MVP lucid much better compared to current SB. Besides ivy is about 5-15% faster depending on the app, at the same clock. And with high end water it overclocks better if you can keep temps down. Main is pci e 3.0 for future setups or current dual gpu high end setups along with lucid mvp for single setups
Given the teething trouble Lucid has, and texture corruption and other shite, I'd not want to use it. With a GTX 680, I don't think I'll need to. Are there clock to clock benchmarks with Ivy Bridge vs Sandy Bridge? Because I'd be interested in reading those. Nothing on AT, Xbit, and so on. Please link if you can