A comparison of the differential cross sections for the processes Z/γ * + jets and photon (γ) + jets is presented.The measurements are based on data collected with the CMS detector at √ s = 8 TeV corresponding to an integrated luminosity of 19.7 fb -1 .The differential cross sections and their ratios are presented as functions of p T .The measurements are also shown as functions of the jet multiplicity.Differential cross sections are obtained as functions of the ratio of the Z/γ * p T to the sum of all jet transverse momenta and of the ratio of the Z/γ * p T to the leading jet transverse momentum.The data are corrected for detector effects and are compared to simulations based on several QCD calculations.