Then I stand corrected on the laptop part, but on desktops, I stand correct.not true:
http://ark.intel.com/products/54616/Intel-Core-i7-2617M-Processor-%284M-Cache-1_50-GHz%29
http://ark.intel.com/products/52231/Intel-Core-i7-2620M-Processor-%284M-Cache-2_70-GHz%29
http://ark.intel.com/products/54610/Intel-Core-i7-2629M-Processor-%284M-Cache-2_10-GHz%29
http://ark.intel.com/products/54645/Intel-Core-i7-2610UE-Processor-%284M-Cache-1_50-GHz%29
http://ark.intel.com/products/54618/Intel-Core-i7-2637M-Processor-%284M-Cache-1_70-GHz%29
http://ark.intel.com/products/53464/Intel-Core-i7-2640M-Processor-%284M-Cache-2_80-GHz%29
http://ark.intel.com/products/54611/Intel-Core-i7-2649M-Processor-%284M-Cache-2_30-GHz%29
http://ark.intel.com/products/54642/Intel-Core-i7-2655LE-Processor-%284M-Cache-2_20-GHz%29
http://ark.intel.com/products/54615/Intel-Core-i7-2657M-Processor-%284M-Cache-1_60-GHz%29
all seocnd gen i7 mobile processors and all dual cores... many of the first gen are also dual cores, the 'Q' in the code name of the mobile processors indicates a quad core...
that had already been said tho:
before that: