Yes, Intel likes to confuse people with so many socket changes per generation. Also I believe P55 chipset uses the older 1156, not 1155 socket.
First gen i7's, there was 1156 and 1366. The 1156 was for lower end i5 and i7's while the 1366 was meant for more powerful i7's. The 2nd gen Sandy bridge cpus introduce the 1155 socket replaced most of the i3/i5/i7 lines, even while the 1366 was still being supported with hexacore cpu's with both i7's and xeons.
Currently, there is the 1155 and 2011 sockets. The biggest difference between those two is that with 2011, most of those pins are slated for the 40 pcie lanes instead of the 16 on the sandy/ivy bridges; plus as for right now, you can only get hexacore cpu's on the 2011. Oh and you get quad channel ram on 2011 instead of dual channel.
As for chipsets, the z77 will be slated with Ivy Bridge, but Intel has said that the z68 will work with it as well. It should add some new features, but I honestly haven't looked at it since they aren't released yet and most of the expected features are already included with the z68.
Oh, ok. Thanks for clearing that up. Last gen made perfect sense to me. Ever since P55 was introduced a while back, it's all been confusing to me.
Now, as for X79... Im planning on making my beast gaming rig using the Asus Rampage IV Extreme. That thing is absolutely dirty... But is it really worth it?
I just hope they offer more CPU options in the future for it. The most ridiculous quad cores out now have ridiculous amounts of power, that, tbh you're not going to be able to fully take advantage of. That's going to be my strategy. Get a quad core, wait for the Hexacores to drop in price, because you're basically buying a future-proof CPU in terms of performance. I don't see how, for example; if you are a gamer, Game devs will take advantage of that tremendous amount of power available from a 3960X...
I mean, SERIOUSLY? Going extremely deep with optimizations for a six cores in terms of coding, the only dev that comes to mind is id Software. (Going a little off topic here, but it just puzzles me.)
I seriously believe that once the 3960 drops in price even 40-60%, there will be plenty of Jam left.
Look at the X58 platform, still. There's lots of power left in those systems if you ask me. it's no news that the computer industry moves extremely quickly, and it's gaming that drives the industry, but good God... What do you need a 3960X for, to run the Matrix?