Sony Mobile started using a new chipset, the ST-Ericsson NovaThor U8500 with the release of the Xperia P and Xperia U. It marks the first departure from Qualcomm for Sony and we would expect further handsets running the NovaThor SoC (system-on-chip) going forward.
The Xperia P comes with a 1GHz dual-core processor and Mali 400 GPU. We have been testing the handset recently and haven’t noticed any performance issues. However, the guys over at Swedroid decided to see how it fared against the HTC One S which is armed with the Qualcomm S4 MSM8260A chipset that comes with a 1.5GHz dual-core processor and Adreno 225 GPU. See the browser test comparing both phones in the video below. It is worth noting that the Xperia P is running on Android 2.3 versus Android 4.0 for the One S.