Yeah I noticed it and ordered the MacBook pro 2015 which has more powerful CPU... I saved 1000€! Thanks Tim.
Link here
http://cpuboss.com/cpus/Intel-Core-i7-6700HQ-vs-Intel-Core-i7-4870HQ
Link here
http://cpuboss.com/cpus/Intel-Core-i7-6700HQ-vs-Intel-Core-i7-4870HQ