Those are far superior specs.
How does windows phone run on such low specs?
To add on what I stated a couple of posts ago, it doesn't take much to power mobile devices. Once upon a time, smartphones didn't even have 1 GB of RAM -- sometimes 512 MB, or even 256 MB. They only had a single core, anemic ARM processor, running at 500 MHz. They even had less than a fifth of the memory bandwidth that you're gasping at.
Guess what? They ran just fine.
Web browsing wasn't a poor experience -- it was actually fairly good. Battery life wasn't fantastic, but was still "all day," which was all that was needed.
These poorly-endowed devices ran much better than PCs did with equivalent hardware. And they were a helluva lot cheaper than those PCs were, back when they were available.
How was all this possible? It's because Android, Windows Phone, and iOS are built around only having that kind of hardware. Even Windows 8/8.1 is rather memory-friendly.
Even a 2.13GHz
Saltwell Atom is actually quite fast. It's a lot of horsepower to have in a phone or tablet. These are media consumption devices, not media production devices. When you've got solid state storage, it doesn't take much processing power to have an enjoyable experience.
Today, we've got Silvermont, which is much, much better than you give it credit for. You continually make the short-sighted mistake of forgetting that Apple builds its own software and hardware. The reason why Apple does so well in browser benchmarks is very simple -- they wrote their browser, and they only had to optimize it for a very tiny selection of hardware. This is not a luxury Intel has.
iOS devices are miniaturized-consoles. iOS and its applications are programmed to the metal. Intel is not afforded that luxury, yet you erroneously claim that Apple's CPU hardware is better, when it is fact the software that has the advantage. The A7 is definitely fast, and it's not far behind Bay Trail, but it trails significantly in performance per watt. Its CPU cores are also substantially larger, despite being built on a denser process than Intel's, and to make matters worse, it uses a relatively expensive "L3 cache" to achieve that performance, whereas Bay Trail does not.
It's just getting rather frustrating having you comment in this thread. Every post you make is followed by a swarm of corrections. If you want to learn, that's fine -- ask questions. We'd be happy to answer. But please, do some research... your perception of things is just too far off from reality.
I'm sorry for talking down to you, but this is really getting to be too much.