It has been realized that HTC One X for AT&T is doing much better in most of the popular benchmark tests as compare to its international sibling.
Despite of the same look and feel, HTC One X for AT&T seems like a new device. The international One X we have already met is based on the quad-core Tegra 3 SoC, while AT&T’s is powered by the Qualcomm’s latest MSM8960 Snapdragon platform using a dual-core Krait CPU.
Vellamo is a Qualcomm developed benchmark that focuses primarily on browser performance, both in rendering and UI speed.
Flash Rendering Performance
GPU Performance – GLBenchmark 2.1
Basemark ES 2.0 V1
Rightware’s Basemark ES 2.0 V1 is an aging GPU test that tends to favor Qualcomm’s Adreno GPUs above almost all others.