Samsung has made the news a couple times because the company has been caught artificially boosting benchmark scores on various devices, most recently with the Galaxy Note 3 which saw 20-50% increases in benchmark scores depending on the tests run. And now, more research from AnandTech is showing that almost no manufacturers are innocent in this practice, which really shouldn't come as a surprise...
Source: http://www.phonearena.com/news/The-numbers-always-lie-HTC-LG-and-Asus-all-found-to-boost-benchmark-scores_id47914
Source: http://www.phonearena.com/news/The-numbers-always-lie-HTC-LG-and-Asus-all-found-to-boost-benchmark-scores_id47914