Originally Posted by midnite_blue
Like Jammol clearly explained -- though, clearly, he wasn't understood by all -- TouchWiz is going to set aside RAM dedicated to its calls, resulting in faster & less battery-draining operation than repeatedly fetching routines from flash storage. That's one of the biggest advantages of having so much RAM. If you're going to run a memory hog like TouchWiz, it's phenomenal in 2013 to still have at least 2.4Gb after the system requirements have taken their bite. That's plenty left over for most people's use. The Snapdragon variant could have been set up to give us more available RAM, but it would have been at the cost of speed and battery-charge life.
Some posters have worried -- because of different reads of available RAM on up-and-running phones -- that Note 3 variants may actually be manufactured with different amounts of RAM. We can rest assured that both of the devices being looked at in this thread come out of the factory with 3Gb LPDDR3 (Channel A+B – 12.8Gbit+12.8Gbit) RAM. As others have said, the real question is why the two have differing amounts of RAM available after servicing the system overhead.
This difference isn't all that surprising. The two phones have differently clocked CPUs, but more importantly their architectures (Krait vs ARM) use significantly different memory-addressing bandwidths and ways of sharing tasks across the cores. And they come with other chipset differences in memory allocation strategies, RAM speed, hardware assistance for virtualization... and GPUs with different clock speeds and ways of writing to the screen.
And of course the Qualcomm chipset in the N9005 has the additional tasks of handling 4G LTE services and 4K video.
Wouldn't it be odd if the two phones ended up with the same amount of available RAM?
Thank you so much for detailing that. After reading so many of the 'nonsense', it wasn't clicking for them.
People fail to realize that dedicated ram is never shown to the user and will never be shown or available for use.
I remember the first time I got an android phone and saw the available ram. I was like wtf, but did some research and learned of the way android handles ram. It's actually not that different from IOS. Same principle, different way to actually do it.
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