Probably means they can track without cookies. You will still be monetized.
You use their service and you don't pay for it the conventional way. I think for people like you, there should be a paid version of Google so you pay a monthly fee to use Google services like search or they should have a pay per search query for you.
You're surprised that a quad core 1.4GHz processor outperforms a dual core 1.3GHz processor?
I'm more surprised that they were so close....
Quad what core? ARM CORTEX-A9
Dual what core? ARM CORTEX-A15
Does clock speed matter? Not as much as architecture when they are clocked at nearly the same speed.
There is no "byte" in the SI. The question is therefore irrelevant. There's an IEC standard containing prefixes for 2^10, 2^20, 2^30 etc, and those prefixes are kibi-, mibi-, gibi- and so on. The SI officially references them, even if they're not strictly part of it.
FTFY
Numeric stability is probably not all that important when you're guessing.