Left: comparison between the RX J1347.5-1145 NIKA tSZ map and the XMM X-ray data (see the work of Gitti & Schindler 2004, 2005; Gitti et al. 2007b). The XMM map has been smoothed with a 5 arcsec Gaussian filter. The red X-ray contours are in photon counts and correspond to 6, 12, 25, 50, 100, 200, and 400. Right: comparison between the best-fit radial tSZ profile of the NIKA map, excluding the shock area (see Sect. 6.3) and the profile derived from Chandra’s data by Comis et al. (2011), which is processed through the NIKA data reduction pipeline, as discussed in Sect. 4.2. The NIKA best-fit profile is given in purple with an associated 1σ statistical error range filled in blue, and the X-ray model is given in red with the 1σ statistical error limit, as two dashed lines. See text for more details on the errors limits.