i5 doesnt have a 6 month shelf life, the 32nm parts will only be bargain basement dual core parts initially, the "mainstream" i5 quads will continue to be manufactured on the 45nm process for some time after that.
If the 32nm parts work on the first generation lga 1156 socket boards, then its likely that when the i5 quads switch to 32nm they will work too.
i7 doesnt really have "less" features, it has the QPI bus, which means high bandwidth devices like Sata3, and USB3 can be built into motherboards without any worries about saturating the cpu's busses.
i5 doesnt have QPI, it has a much slower DMI coupled with a PCIe v2 16 lane controller built into the cpu. (Pretty sure its 16 lane). So the i7 has better potential if you need more than 16 lanes, as it uses a PCIe controller chip connected to the QPI. Of course i5 motherboards can still put a bridge chip in, giving more than 16 lanes, where some of the bandwidth is used in a gpu -> gpu communication, but the combined total bandwidth to the CPU and the memory (as the memory controllers on chip) will be limited to 16 lanes.
The EOL of the 920 was announced ages ago, no doubt intel will have some new parts to put in the i7 lineup, higher clocked quads, and 6 core parts. PS.. SEXCore? I believe the correct term would be Hexcore. (not to be confused with hexadecimal, which is base 16, simply hex(6) + decimal(10).)
(Tri - Quad - Pent - Hex - Hept - Octo - Nona - Deca ) Polygons, and CPU core counts have names derived from greek not latin.
If the 32nm parts work on the first generation lga 1156 socket boards, then its likely that when the i5 quads switch to 32nm they will work too.
i7 doesnt really have "less" features, it has the QPI bus, which means high bandwidth devices like Sata3, and USB3 can be built into motherboards without any worries about saturating the cpu's busses.
i5 doesnt have QPI, it has a much slower DMI coupled with a PCIe v2 16 lane controller built into the cpu. (Pretty sure its 16 lane). So the i7 has better potential if you need more than 16 lanes, as it uses a PCIe controller chip connected to the QPI. Of course i5 motherboards can still put a bridge chip in, giving more than 16 lanes, where some of the bandwidth is used in a gpu -> gpu communication, but the combined total bandwidth to the CPU and the memory (as the memory controllers on chip) will be limited to 16 lanes.
The EOL of the 920 was announced ages ago, no doubt intel will have some new parts to put in the i7 lineup, higher clocked quads, and 6 core parts. PS.. SEXCore? I believe the correct term would be Hexcore. (not to be confused with hexadecimal, which is base 16, simply hex(6) + decimal(10).)
(Tri - Quad - Pent - Hex - Hept - Octo - Nona - Deca ) Polygons, and CPU core counts have names derived from greek not latin.
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