A report by AnandTech suggests Samsung is gaming benchmarks by allowing the GPU in its flagship Galaxy S4 handsets to operate at a higher frequency with benchmark apps than with other apps.
AnandTech tested the Exynos 5 Octa Galaxy S4 handset and found that the GPU frequency was clocked at 480MHZ while playing games. When a benchmark app was opened, the GPU jumped up to 532MHz. This jump was recorded for GLBenchmark 2.5.1, AnTuTu and Quadrant. According to AnandTech’s testing, this bump in GPU frequency boosted benchmark performance by more that 11%.
AnandTech warns customers to not use Exynos 5 Octa SGS4 benchmark reports from apps that use the higher GPU frequency. Though it showcases the raw capability of the hardware, it does not reflect the everyday performance.