Cpu-Z is only showing 1 core and 4 threads on my i3 6100, i tried a different monitoring program HWINFO and it showed my processor as an intel core-3700 with 1 core and 16 threads
Yes i am using the latest version of CPU-Z and im pretty sure im using the latest version of HWINFO pictures here: http://imageshack.com/a/img921/2658/YzCX1h.png
http://imageshack.com/a/img922/7637/4NTIVB.png