My Optimus S is running Reborn Rom 2.2.1 on the ZVD band (no special overclock, etc beside the default settings of the 2.2.1 Rom). I've got my coworkers Marquee (stock Rom) sitting on my desk right now beside my Optimus and I'm just comparing how quickly different apps launch and run (haven't done a benchmark test to compare them). Both are running up to date versions of the apps I tested... both running Launcher Pro. Optimus is noticeably snappier.... though I would guess in benchmark tests... Marquee should test out faster.
However... all that being just observed... here is likely part of the reason the Optimus Series has been such a great phone and is snapper then every other 3g android phone in it's class and price range ... even the newer ones. Its got 3 dedicated processors and 1 of those 3 is dual core. I know that sound crazy... but yes...you heard me right. It's not advertised .... and it's a little known fact... but the processors are: 1) MSM7627 dual core processor: 2) 600 MHz applications processor, 3) 400 MHz modem processor.
Click on this link and go to the "specifications" tab if you don't believe me.
When i bought the phone back in Nov of 2010... I bought it cause it was snapper (stock version)... than every other android phone from Sprint IMO... except the only 2 4G phones available at that time (Evo and Samsung Epic).
Anyway...I do like most everything else about the Marquee. Really seems like it has alot of potential.
weelll.... that's not exactly the case. The MSM7627 is one of Qualcomm's all-on-one-chip processors, where simplifies the architecture of an embedded device by printing most of the necessary component processors on the same die. Makes manufacturing cheaper and reduces size as well as battery power.
The chip includes a 600Mhz CPU for running Android, a 400Mhz radio processor, as well as the Adreno 200 GPU. This is not the same as saying a device has a "dual core CPU", in which we are referring only to the application processor, not counting the modem and GPU. All of those components are necessary for the phone to function, and Qualcomm has been making chips like this for years.
Another way to visualize this, is to picture your PC. You have a CPU (probably by Intel or AMD), but you also have a sound processor driving your audio, a video card with its own processor driving your graphics, and countless other dedicated processors for specific tasks on your motherboard. Now, imagine the CPU actually contained your video card, sound card, and most of the other processors and controllers in itself. Then all you would need to do is add some ram and attach some devices, and you've got an entire computer running (mostly) on a single chip. That's how embedded devices are designed these days.
Rather, the reason the Optimus is so snappy has a lot to do with the GPU. That Adreno 200 is the same found on the original snapdragon chips, like the ones used in the original HTC EVO 4G.
The EVO 4G, however, had a WVGA display at 800x480, whereas the Optimus is paired with a HVGA 480x320. That same graphics processor that is in charge of pumping out the EVO's higher resolution has to deal with less than half of the pixels on the Optimus. That means it has to work less than half as hard, and can display results in technically less than half the time.
That is why the Optimus doesn't benchmark high, and is slow at things like complicated web pages or heavily compression codecs, but the screen response is buttery smooth with a high refresh rate.
Meanwhile, the Marquee uses the new PowerVR GPU, and is paired with a higher definition WVGA display (like the EVO). However, Android's graphic libraries apparently don't always play nicely with the PowerVR, so it would appear that some apps run at higher speed than others (hardware acceleration versus not). Combine that with the more work the GPU has to do for the extra pixels, and that is why the Marquee does not appear as smooth as a lower resolution device.
Take a look at the new Transform Ultra for another example of a high speed GPU on a lower resolution. Its even smoother than the Optimus.
(nosajs, you see how this is relevant to what we are describing? I'm not comparing! LOL)
Meanwhile, I almost missed KydDynoMyte's post saying its back on Sprint.com. That's a bit more promising!