To compare real-life performance I shot this scene with the Panasonic LUmix GM1 and the Sony Cyber-shot RX100 II, within a few moments of each other using their RAW modes. This page will be completed when the GM1 is supported in Adobe Camera RAW.
The Lumix GM1 was fitted with the 12-32mm kit lens, set to 32mm for a 64mm equivalent field of view, and the Sony RX100 II adjusted until it matched the vertical field of view; since the Sony captures a slightly wider 3:2 shaped image there are thin vertical strips down the side of its test shot here which are effectively ignored in this comparison.
Both cameras were set to their respective maximum apertures at this focal length, f5.6 on the Lumix GM1 kit lens and f5 for the RX100 II. All other camera settings were left on the defaults. Stabilisation was however disabled for this tripod-mounted comparison.