HTC One S launched in Taiwan

 HTC One S launched in Taiwan with a Dual-core 1.7GHz S3 processor

htc ones

HTC One S has just been launched in Taiwan, the company's home country, HTC made this taiwanese-model special by swapping the original processor with an overlocked Dual-core 1.7GHz MSM8260 Snapdragon S3 instead of the 1.5Ghz MSM8960 Snapdragon S4 on the international model.

htc one s taiwan specs
The reason for this could be the shortage of the Snapdragon S4 processor, which has been a cause for concern for several OEMs, eventually forcing them to choose from other chip makers. This is why HTC could have gone with the older generation processor. Obviously, to match the performance of the newer S4, HTC overclocked the S3 from 1.3Ghz to 1.7Ghz.
source