ITG wrote:Differences between traditional mobile phones & xpPhone
Differences between traditional mobile phones and xpPhone in terms of CPU
At present, all the mobile phones available in the market are based on ARM (Advanced RISC Machines) CPU architecture design. Although the power consumption and cost of the CPU based on ARM architecture are relatively lower than that based on X86 architecture (computer architecture), the design idea of ARM CPU based on reduced architecture causes a considerable decrease in the instruction sets inside CPU, resulting in the failure of ARM CPU to match up to the X86 CPU in respect of performance so far.
Each CPU has specified a series of instruction sets compatible with its hardware circuit at the time of design. The strength of instruction sets is also an important indicator to measure the operational speed of CPU, and the instruction set is one of the most effective tools to improve the efficiency of microprocessor. For example, MMX (Multi Media Extended,) SSE, SSE2, SEE3 and AMD's 3DNow! are instruction sets which greatly improve the operational performance of CPU and enhance the processing capacity of the CPU's multimedia, images & graphics and Internet respectively.
The reason why the ARM devices are only suitable for displaying simple mobile phone web pages rather than Internet web pages is that the Internet web pages are quite complex and based on X86 architecture system. Almost all the browsers of ARM architecture-based smartphones can not normally browse the web stes based on X86 architecture system.
Without abundant instruction sets inside CPU to support the high frequency, there will be no leaping improvement in the processing speed of CPU. Therefore, in respect of performance, most low-frequency X86 architecture-based CPUs far exceed the ARM architecture-based CPU under the same frequency.
Differences between traditional mobile phones and xpPhone in terms of memory
The memory of smartphones generally ranges from 64M to 256M, because most ARM architecture-based smartphones use SDRAM or Mobile DDR memory IC. The frequency of these types of memory IC is very low with only 100MHZ-300MHZ processing capability, which is far behind the frequency and capacity of X86 architecture-based computer memory IC, resulting in insufficient memory capacity and slow processing speed of smartphones available in the market. The capacity of X86 architecture-based computer memories (DDR, DDR2, DDR3) is generally more than 512M at present, more importantly, the frequency of computer memory IC generally ranges from 300MHZ to 1GHZ. Therefore, for memory of the same capacity, X86 architecture-based processing speed is much faster than that of smartphones.
Differences between traditional mobile phones and xpPhone in terms of storage
PC's SSD (solid state disk) adopts the storage matrix consisting of control unit and storage unit (FLASH chips or DRAM chips), and its capacity is generally large. The SSD is faster, lighter, more power-saving, more shock-resistant, more stable and more suitable for outdoor use than HDD.
In comparison with mechanical HDD, SSD avoids the risks of data loss and hard disk damage due to bumpy environment. The mobile phones use the built-in Flash Memory chip or the externally extended Flash Memory card to store data. The interface chip in mobile phones has a relatively low requirement for data reading and writing speed, resulting in the speed of Flash Memory is far behind that of X86 architecture-based SSD.
Jigar wrote:The place where XPphone wins is the compatibility with your PC. Anything that works on your PC works on your mobile.
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