We covered the LG Optimus 3D during its launch event yesterday, and the device has continued to draw our attention. Today we decided to track down an LG Optimus 3D to get a better impression of its 3D capture and playback capabilities, and to run some benchmarks. 

The Optimus 3D features (surprise) a 3D autostereoscopic display from LG. Both the IPS panel underneath, and the parallax barrier on top are LG's own. Most of the Android UI is of course 2D - the parallax barrier can be switched on and off or varied in intensity depending on the context. 

We got some time to check out the 3D capable YouTube application. It's not an extra or an add-on, but rather Google's own real official YouTube application. It just happens to have 3D support included. Right now that YouTube version is exclusive to the LG Optimus 3D, but it'll eventually move into the market and onto other phones as they too get 3D capture and playback support. YouTube puts a 3D icon next to videos that support 3D and will play them back on the Optimus 3D in landscape with the parallax barrier enabled. 

Our impressions of the parallax barrier display are relatively positive. Depth isn't too overwhelming at most settings, and can be changed in most 3D contexts by dragging a slider. When viewing the display, it's obvious that there are a set of optimal viewing angles for the parallax barrier. It's difficult to describe how the 3D effect looks from different angles - as you change your viewing angle across the display, the 3D effect comes and goes accordingly. It definitely requires some thought to position oneself appropriately. 

LG also worked with Gameloft on a number of titles, including N.O.V.A. 3D. We got to play around and were decently impressed. LG spent a lot of time going over which scenes should have negative or positive parallax, and includes a depth slider for intensity. Other 3D games also include depth sliders and even allow 3D to be disabled entirely. There are a bunch of other uses for 3D that LG is working on with, including more close work with Google in other applications.

3D video capture is supported in the native camera application. The interface is exactly the same as the one on the LG Optimus 2X, instead there's a 3D button. Press that, and the parallax barrier fires up, and you get a live 3D preview. 

Other than that, we've had a busy couple of days of benchmarking at Mobile World Congress. Yesterday we spent a lot of time with Samsung's recently announced Galaxy S II, featuring Samsung's Exynos SoC. The Exynos is Samsung's own dual-core Cortex A9 with an ARM Mali 400MP GPU. 

We measured competitive CPU performance from the Exynos in the Galaxy S II, however the GPU performance was a bit behind the Tegra 2. 

The big news is that we spent some time using and benchmarking LG's Optimus 3D. The Optimus 3D is the first smartphone to use TI's OMAP 4430 SoC. Like NVIDIA's Tegra 2, the 4430 integrates a pair of ARM Cortex A9 cores behind a shared 1MB L2 cache. The OMAP 4430 differs from Tegra 2 in three key ways:

1) TI integrates ARM's Media Processing Engine (MPE) enabling NEON support

2) TI has a dual-channel LPDDR2 memory controller (Tegra 2 only has a single-channel memory controller).

3) The OMAP 4430 integrates Imagination Technologies' PowerVR SGX 540 running at ~300MHz, NVIDIA uses its own GeForce GPU.

I don't expect there to be a measurable performance advantage today due to MPE as I'm not aware of any substantial (or any?) NEON code in the apps we test with. The dual-channel memory controller and higher clocked SGX 540 are another matter entirely.

Most PowerVR SGX 540 designs run the GPU core at up to 200MHz. OMAP 4's implementation is another 50% faster. LG's software build also uses a newer version of Imagination Technologies' driver (1.6 instead of 1.5) which fixes some rendering issues (specifically in the Egypt test) and improves performance considerably (likely between 10 - 30% in GLBenchmark2). You can see that the image quality issues are fixed in the video showing the Egypt demo running on the LG Optimus 3D below:

SunSpider Javascript Benchmark 0.9

Rightware BrowserMark

GLBenchmark 2.0 - Egypt

GLBenchmark 2.0 - PRO

Taking the performance improvement due to the driver out of the equation, we're still looking at a nearly 20% increase in performance over the SGX 540 in Hummingbird. The 4430 holds a similar advantage over NVIDIA's Tegra 2.

It's sort of nice to have so many different SoCs available at the same time. TI's OMAP 4430, Samsung's Exynos 4210, NVIDIA's Tegra 2 AP20H and Qualcomm's upcoming MSM8660. Right now it looks like the OMAP 4430 may be the best performer out of them all, however it remains to be seen what Qualcomm's Adreno 220 will bring to the table when the MSM8660 ships later this year. 

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  • MobiusStrip - Tuesday, February 15, 2011 - link

    Unfortunately, those lenses are way too close together to create proper (meaning human) 3-D.

    After 150 years or so of stereoscopic photography, it's incredible to see this blunder being made. Standard human interocular spacing is 64mm (about 2.5 inches). Look at this camera: I doubt the spacing is even half that.

    And before someone jumps in with, "No, because of the field of view of these lenses..."; that doesn't matter. It's not the field of view that matters; it's the POINT of view. If you're 13 inches away from seeing around a corner and you move one foot toward it, you still can't see around the corner. If you move a foot and a half, you can see around the corner. Putting wide-angle glasses on wouldn't have let you see around it without moving.

    Same thing with 3-D cameras. Lenses one inch apart will not see the same objects or parts of objects that lenses 2.5 inches apart will, regardless of their field of view.

    This camera is BS.
    Reply
  • bplewis24 - Tuesday, February 15, 2011 - link

    So, Tegra 2 had the overall performance crown for, what... a few days? Things are heating up!

    Brandon
    Reply
  • Conficio - Tuesday, February 15, 2011 - link

    I wished LG would offer the fast processor with the tempting NOVA screen of the Optimus black. I don't care for 3D gimicks. But I'm in the market for a dual core smart phone that has a screen with good resolution and visibility in daylight (preferably matte).

    Don't know why the black does not seem to have a dual core processor and fast memory channels.
    Reply
  • j.harper12 - Tuesday, February 15, 2011 - link

    This is the real reason I wanted the Optimus 3D, I hoped the benchmarks would prove to be near the top of the heap. 3D will be a fun feature, but really just an ancillary benefit. Sadly, I doubt I will ever get this phone, doesn't look like a CDMA variant is going to be released. Please, please, please correct me if I'm wrong folks. Would love to pick this phone up on Sprint. Reply
  • khimera2000 - Tuesday, February 15, 2011 - link

    Ouch so tegra 2 no longer is the fastest, thats not good, but at the end of the day I doubt that amy one will really notice a differance with the latest offerings. Im personnaly looking forward to seeing more about the new snapdragon chips.

    Is there a way for anandtech to maybe come up with a chart that shows the evolution of these chips? maybe a timeline showing offerings, and what new capabilities where added to each generation. It would be intresting to see how much performance i lose or gain baist on generation and vender.
    Reply
  • Ushio01 - Tuesday, February 15, 2011 - link

    So mobile phones now have a choice of 5 GPU makers Broadcom, ARM, Qualcomm, Nvidia and Imagination Technologies. I only have one thing to say hurry up and scale these chips up so we can use them in laptops as the current AMD and Nvidia chips aren't cutting it in the power to performance department. Reply
  • silverblue - Tuesday, February 15, 2011 - link

    Pardon my ignorance, but I didn't know the first two of those made any GPUs. Regardless, I'm not quite sure scaling them up to laptop/netbook usage would bring about the performance you're expecting. They still have Atom, Nano and especially Brazos in the way first... and taking Brazos from a single channel memory interface to dual channel would make for a tangible performance boost. Reply
  • dagamer34 - Tuesday, February 15, 2011 - link

    ARMs GPU is called Mali and it's in the newly announced Exynos SoC from Samsung. Reply
  • bhtooefr - Sunday, April 10, 2011 - link

    I'm replying to an ancient post, I know, but...

    Get an Atom Z-series netbook, with the GMA 500. That gets you an SGX 535 in a laptop.
    Reply
  • Stuka87 - Tuesday, February 15, 2011 - link

    With the two cameras being so close to each other, how good is the 3D photography? I would think that there would not be much depth because of how close they are to each other. Where as something like the 3DS has them quite a bit farther apart. Reply

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