Every time I write about quad-core or dual-core handsets, I remember Stephen Elop’s words. As you remember, Nokia CEO said that multi-core processors are real battery killers, and there is nothing good in them. That time I though this man was right — if a company can make smartphones working smoothly on a single core, why does it need to pack its devices with several cores and raise the pricing? But the truth is — the number of cores shows how fast a smartphone can work and respond to your commands.

There are several features affecting the battery drainage — besides the processor, there is also the screen that can also drain your phone’s battery. But I don’t want to overload you with all those technical details — my main goal at the moment is to introduce you how the HTC One X stands in different battery tests. I have chosen this handset, because it’s one of the best Android devices and sports a quad-core processor. Thus if it passes through the tests with its head high, all myths saying the multi-core processors are not good will become senseless.

Before we start, I want to remind you that the HTC One X comes with a Tegra 3 4-PLUS-1 architecture and a bright 4.7-inch HD LCD. Such powerful features require a powerful battery, but at the first sight, the 1800mAh battery found on the HTC One X can’t serve well.

To provide more reliable results, let’s have a look at the data given by the guys from GSMArena. Firstly, they have tested the HTC One X in terms of talk time. It turned out the phone can last for almost 10 hours.

But when the phone was thrown in a web browsing test, the best result was 4 hours and 18 minutes. Terrible result, right? I guess it’s because the device has a very bright screen, which kills the battery when surfing in the net.

Thirdly, the smartphone passes through video playback tests, and it turned out that the One X can last for 5 hours 45 minutes on a single charge. Well, it’s better than the surfing test…

The final test is called the endurance rating, and in case of the HTC One X it’s 37 hours. That’s not the highest rating, but for a quad-core smartphone it is not that bad.