Comparison of the star formation rates of X-ray sources, measured using the infrared 8−1000   μm luminosity, and the optical SED fitting a), or the 1.4 GHz radio luminosity b). Black circles mark reliable fits in both optical and far-infrared (or radio) wavelengths, excluding cases where the AGN SED dominates even the longest wavelength flux density available. Sources spanning over the whole 3 Ms XMM-Newton region are used in these plots, while the downward arrows refer to Herschel non-detections in the PACS area (35 cases), and leftward arrows in the right panel refer to radio upper limits spanning over the whole XMM-Newton region (112 cases). The solid and dashed lines in both panels represent the 1:1 relation and the  ±1   dex deviation, respectively, and the vertical dashed line in the right panel marks the calculated star-formation rate of a source having L_{1.4   GHz} = 10^24.5   W   Hz^-1 = 10^31.5   erg   s^-1   Hz^-1. The significant deviation form the 1:1 relation of both cases and the significant scatter of the optical SED (left) case prevent us from using any of the two SFR tracers in this paper.