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Cores of Processor & Misconception about i3, i5, i7

18 Feb

The term core memory is a leftover from an early form of random access memory (RAM). Magnetic core memory  was first patented in 1947 and was used in early computers through the 50s and 60s. According to Wikipedia’s article, magnetic core memory was replaced by integrated silicon RAM chips in the 1970’s. Unlike modern silicon RAM, core memory was non-volatile — it retained its contents indefinitely without power.

multi-core processor is a single computing component with two or more independent actual processors (called “cores”), which are the units that read and execute program instructions.

Intel introduced a new naming scheme for its new Core processors. There are three variants, Core i3, Core i5, and Core i7, but the names no longer correspond to specific technical features like the number of cores. Instead, the brand is now divided from low-level (i3), through mid-range (i5) to high-end performance (i7), which correspond to three to five stars in Intel’s Intel Processor Rating as opposed to the entry-level Celeron (one star) and Pentium (two stars) processors.

For my curious friends !

  • Core i3 has 2 cores !
  • Core i5 has 2 or 4 cores !
  • Core i7 has 2,4 or 6 cores !

Now the question is how i3 is efficient then core 2 duo ?

Technically there are many differences but shortly what makes the big difference is the cache .

  • core i3 max cache = 4mb L3
  • core i5 max cache= 8mb L3
  • core i7 max cache =12mb L3

Processor earlier then i3 used L2 type cache .

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4 Comments

Posted by on February 18, 2012 in Uncategorized

 

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4 responses to “Cores of Processor & Misconception about i3, i5, i7

  1. Technology villa

    February 18, 2012 at 9:31 am

    i think it isnt a big diference………….in the market core 2 duo is selling more than i3 and i thnk it isnt due to its price…………..mayb there is smethng else which is creating differnce

     
    • engrmuh

      February 18, 2012 at 10:44 am

      Thanks 4 visiting 🙂 . The i3 processors have a L2 cache size of 2 x 256 kb and a L3 cache size of 4MB, with hyperthreading and smart cache enabled, core 2 duo processors are indeed slower. On top of that, DDR3 RAM compatibility in core i3 processors, compared to DDR2 compatibility of core 2 duo processors makes them even more faster.

       

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