Two OMAP 3430 Phones: Nokia N900 and Motorola Droid
by Brian Klug on June 10, 2010 9:29 PM EST- Posted in
- Smartphones
- N900
- Maemo
- Motorola Droid
- Droid
- MeeGo
- Android
- Mobile
The SoC - OMAP3 3430
Before we dive into the phones, let's take a look at the SoC at the core of both. We talked about the OMAP 3430 back in 2009 (well maybe not way back, but it sure feels like it) in the context of the Palm Pre, which uses the OMAP 3430. It turns out that Texas Instruments' OMAP 3430 SoC is quite popular if not a microcosm of the generation of smartphones we're talking about; it's common to the N900, Motorola Droid, and Palm Pre.
The Texas Instruments OMAP 3430 is designed for a 65nm manufacturing process, in fact, all of the OMAP34x series are designed for 65-nm process, whereas OMAP36 is intended for 45-nm processes. OMAP 3430 supports up to 12 megapixel cameras on its onboard image-signal processor, and packs an onboard IVA 2+ image, video and audio DSP accelerator clocked at 430 MHz, and a PowerVR SGX 530 GPU. Those clocks are recommended by TI, but in practice handset OEMs set them through a dialog with carriers to meet appropriate performance and battery life targets. OMAP3430's IVA 2+ supports MPEG-4 and H.264 encode/decode of 30 fps video at 720x480, and WMV9 decode at the same resolution and framerate. OMAP3430 can drive displays up to WXGA (1280x800) resolution at 24-bits. Note that the OMAP3 series SoCs don't pack internal cellular modems, meaning OEMs shop around for their own and connect over internal USB or multi channel buffered serial (McBSP).
At the heart of the OMAP 3430 SoC is the 600 MHz ARM Cortex A8 CPU. Remember that Cortex-A8 is an ARMv7 design with a 13 stage pipeline, compared to the 8 stage ARM11 (ARMv6) design common to OMAP2 and the CPU in the iPhone 3G. In practice, the performance delta between ARMv6 (ARM11) and ARMv7 (Cortex-A8) is between 2x and 3x.
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DaveGirard - Saturday, June 12, 2010 - link
sweet Jesus, that Nokia phone is huge. Does it double as an ice cream sandwich cover?metafor - Sunday, June 13, 2010 - link
Cortex is the CPU designed by ARM. This is available as a hard-macro (layout already done) or soft-macro (just the functional RTL). Some companies license this in either version. For those who license the soft-version, such as TI, nVidia and Broadcom, they can do a customized place-and-route along with clock-tree optimizations and voltage partitioning to try to make the design run faster.However, the micro-architecture is the same.
A few companies have ARM architectural licenses (Apple, Qualcomm, Marvell) and instead of licensing the Cortex line of processors, they design their own. The micro-architecture is developed independent of what ARM did in their Cortex series albeit there will often be similarities.
Scorpion inside Snapdragon was developed in the course of years and while it has many similarities to the A8 from a power-point standpoint, the micro-architecture underneath was designed from the ground up. Everything from the branch predictors, the cache controller, exception handling, execution units and most notably, a partially OoOE scheduler and retirement buffer.
There's also the 128-bit, fully pipelined, partially OoOE SIMD/FP unit.
medi01 - Sunday, June 13, 2010 - link
Well, I find it very strange, that "incidentally" iPhone is never shown in bad light. Could you please update your side to side comparison?Impulses - Wednesday, June 16, 2010 - link
Personally I think there's better things for you guys to do or test with your time... Who cares if a phone's screen colors are more or less accurate, as long as they aren't outright flawed or ugly to look at it shouldn't be a big deal, not like anyone's gonna be doing any pro content editing work on their phones! (I don't even own an AMOLED screen so I'm not particularly biased one way or the other, I own an EVO atm)mojtabaalemi - Saturday, June 19, 2010 - link
I hate the design of nokia mobile phones . in my idea an iphone is far far better !paihuaizhe - Sunday, June 20, 2010 - link
(nike-alliance).(com)=>is a leading worldwide wholesaler company (or u can sayorganization)
arnavvdesai - Saturday, June 26, 2010 - link
I was just wondering if the author had installed AdBlock+ and then run the browser speed numbers or without it being on. If it was not installed which is what I am guessing from the photos, did you notice an improvement in the render times when it was installed. I actually bought the phone recently after seeing it on sale for 380$ and wanted to know the details. Also, I have heard that the current build of the OS allows potrait mode even for the browser(although it has to be activate through some setting) and not just the phone.drwiremore - Sunday, July 4, 2010 - link
Amanda, delighted to have found you. Given the issues in the title, affecting 20~50% of MOTO Droid users, was surprised to see no mention of it. The MOTO boards are alive with disdain and some feel an in you face attitude by Motorola Droid 2 and X announcements. Would you do an iPhone like analysis of voice, antenna and signal issues across Verizons Droids: HTC incredible and MOTO Droid. Your scientific analysis would be welcomed.