YouTube user dannywinget posted this video comparing the AT&T and international models of the HTC One X. This is less a comparison of the two phones (they’re nearly identical) and more of a battle of the two processors used. The international HTC One X uses a quad core Tegra 3 processor, while the AT&T model uses a dual core Snapdragon S4. This caused a lot of controversy, as people immediately assumed the dual core would be worse. But this video should prove otherwise.
The tests used were Quadrant Standard, Linpack multi-thread, and Nenamark 2. The Snapdragon S4 bested the Tegra 3 chip in the latter two with half the cores. Most surprising was the Nenamark 2 victory, as the Tegra series has a reputation for having the most capable grapics (though that isn’t at all true). The dual core Snapdragon bested it by a good margin. Also, the man filming said the AT&T model was smoother and snappier in general use. Taking into consideration that he was using an in-store model (which are almost always buggy and slow), this is a very impressive win!
These numbers can be attributed to the architecture used in the chips. The Tegra 3 quad core is based on the older A9 architecture that has been used in most last generation chips. The Snapdragon S4, on the other hand, uses the brand new A15 architecture. Not only is it more powerful, it is allegedly a lot lighter on the battery. This video demonstrates this perfectly.
There was a rumor earlier that the US version of the yet to be announced Galaxy S II successor will be using a Snapdragon S4 chip instead of the quad core Exynos. I was distraught at first, as the dual core Exynos blew away every other processor of its time. But knowing that the new Exynos will be A9 based, somehow the Snapdragon doesn’t seem so unwelcome anymore.
Source: Android Central