You have a 6th Generation Intel® Core™ i7 Processor
7Th GEN core I7 7700
8th GEN core I7 8700
Intel wants you to buy new chipsets and new processors which is why they keep changing things. Fitting into the socket is only 1 parameter.
And finally, in my opinion ... the Intel i7-6700 is a nice/fast processor and a "good fit" for this class of machine.