Do you have an 1156 based board dude?
I would be careful. From what I hear (no reason to believe it's wrong) is that the 1156 I7 is an I5 with HT. This was sort of confirmed recently when I built my 950 based system. The 1156 I7 was actually more and apparently wildly inferior to the 1366 ones.
If you were thinking of building a system based around 1156 now really is a bad time for it. 1155 as Tom says is the replacement for it, where as the 1366 replacement is miles off.
Wildly inferior? They're virtually identical to the i7 9xx series. They have DMI instead of QPI, but the only difference there is DMI has the PCIe connectivity on the CPU. The cores are identical, man. Look at the performance numbers, Super Pi or encoding numbers and gaming benchmarks. Look at -any- review of Lynnfield from when it was introduced. If anything, at stock speeds, the Lynnfields are faster because they have more aggressive turbo modes.
The only 'upgrades' you get by going X58 is triple channel RAM (useless to 95% of us) and more PCIe lanes (36 instead of 16 + 4 PCIe 1.1 lanes on the chipset). If you don't need more than 16 lanes there's no practical difference between the i7 8xx performance and the i7 9xx performance.
I hope you've got some evidence to back this up.
Claiming it's "more" as in "more expensive" is also silly.. they're the same price, and P55 boards are actually cheaper.
EDIT: I think you should look at this.. this is two i7s, one 870 and one 940, so they're the same clock speed.
http://www.anandtech.com/bench/Product/107?vs=46 The 870 is superior in gaming (again, better turbo, and less latency from the PCIe being onboard) and they trade blows in virtually everything else.
