Smartphones replace PC? Actually not realistic

August 4 news over the past few years, there have been some calculations prophet declared that one day there may be alternative smartphones PC. At first glance, this seems to be an amazing leap. Forget the bulky desktop it can not be moved; forget the notebook it. All of these computers have features, will be small, you can replace a device in your pocket. When you need, you can enter through an external mouse button, not when they open igogo
However, this dream has several problems. From today's point of view, mobile computing is latest cell phones still thriving in a dream among; let everything looks smart phones do not only possible, but very wise. However, this possibility has been physical reality, humans need limits, the theoretical threshold smartphones PC faced two insurmountable.
1, the mobile processor is not fast enough
Performance is not a problem. From a faster processor, most tasks can not feel much benefit, such as a small network, edit the next picture, look at the video. The experience has been great.
However, I want to provide some good evidence: in my bedroom with a PC, it uses Core 2 Duo E8400 processor. Although already spent five years it is still fast, you can play any modern PC games, resolution of 720P.
From AMD, Intel's flagship chip has been condoned by the user. Two companies make high-end CPU design, manufacture look so easy, truth is not the same thing. It takes years of flagship computing architecture design, costing countless to produce, it may take several billion dollars.
Performance is indeed very important. For example, when the user aware of the Internet is very slow when it died. Initially, the message may want to use PC browse web pages, look at the video, but who wants to return to the past?
Now, the smart phone processor is still very slow, far behind AMD and Intel. ARM processors and Intel X86 smartphone processor performance are not comparable, in general, the standard voltage Core i5 processor 8 times faster. Now smartphone CPU not law provides PC-like experience.
2, the battery life is limited potential for the processor
Processor performance has been rapidly increasing. So some people think, and now smart phones may not be PC faster, but it will catch up soon. ARM Cortex A15 Samsung Chromebook has to prove his ability. On the phone to achieve it?
The problem is energy consumption. Samsung Chromebook uses ARM processor, it is more android 4.1 phones than the old Intel Atom processor powerful, its power consumption when idle is 4 watts, 11 watts busy. Concerned by notebook standards are not high, but the smart phone is too high igogo
Smart phones are calculated according to milliwatts, busy, no more than 3 watts. Only reached such low standards in order to provide reasonable battery life, high-end mobile speed is amazing, but the power was too fierce. For example, S4 does not take 11 hours to recharge a battery.
This look at the latest super Haswell processor leisure minimum 6 watts, 30 watts super busy. Its endurance performance than most powerful smartphone is better. Galaxy S4 if with such a strong processor, battery life may be less than one hour. Improve efficiency, increase battery capacity may solve the problem, but from a historical point of view, two aspects are progressing slowly. Moore's Law does not apply to batteries.