Interface and Functionality:

The Android 2.2 Froyo interface hasn't been over-the-top skinned by LG. We have a dock at the bottom of the display, which is always present both in the homescreens, and in the main menu. It is slightly transparent, and hosts four shortcuts - to the Phone, Contacts and Messaging apps, as well as to the main menu or the homescreen, depending where you are in the interface.

Naturally, we have a bunch of widgets, folders and shortcuts we can place on the homescreens. The LG widgets you can see below - a couple of clocks and time management ones, as well as news, social networking and multimedia widgets - nothing new here. The weather widget uses to pull its info from.

We especially liked the Calendar widget, since it presented both our near and far upcoming events in a clean manner. LG should have made it possible to fit the Social Feed and My Status widgets on one homescreen, instead of having to look at one screen for Facebook or Twitter updates, and then go to another to post our status.

You can change the main menu from list grid view to page view, which brings in a nice glowing red line with the page number on it, and you can also create app categories. Scrolling and overall performance in the interface is very fluid, as we can expect from the most powerful Android handset on the market. No matter how many apps we ran at once, we couldn't choke the 1GHz dual-core NVIDIA Tegra 2 chipset, even though the phone has 380MB of user-available RAM. It once scored 2777 on Quadrant, and 74.4fps per second on Neocore, which makes it the fastest stock handset we've seen so far.

We will make a segway here to explain what are the current and future bragging rights of having a dual-core phone. For now the most useful advantage is the ability to record and play Full HD 1080p video. More detailed videos is a nice thing to have, but in reality the difference with HD 720p video is not that huge, if you are not watching it on a Full HD-capable display.

Moreover, there are single-core phones, which also claim the ability to record 1080p video, like the upcoming Samsung Infuse for AT&T, simply because the 1.2GHz Hummingbird chipset in it is powerful enough to allow Full HD. The main advantages are coming when there is software written specifically for dual-core, but for now you are only getting the bragging rights.

We ran a few standardized tests on the dual-core LG Optimus 2X against last year's finest the Samsung Galaxy S, and have a couple of charts to share.

The LG Optimus 2X performed better in almost all of the tests, except for close results in a 3D graphics test, where it managed only about 13% more frames per second than the Samsung Galaxy S.

In browser benchmarks, on the other hand, the NVIDIA Tegra 2 1GHz dual-core chipset inside the LG Optimus 2X really shined. It delivered thanks to the Symmetrical Multiprocessing (SMP) capabilities of ARM's multi-core Cortex-A9 chips like Tegra 2. Recent changes in the Webkit code, what we have in the Android browser, allow for taking advantage of multiple CPU cores when rendering websites.

For example, when a single-core chipset encounters some script on a Web page, it stalls other tasks until the script is executed, whereas if there is one more core, they continue fetching the page from the server in parallel, thus speeding up the load times quite a bit. Indeed we saw much faster performance both in benchmarks like SunSpider (JavaScript rendering) or GUIMark2 (Flash and HTML5), as well as in actual page load times.

The full comparison chart set can be found here.

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