What is the difference between core i3, i5 and i7 intel processors
If you are thinking that the difference in core i3, i5 and i7 is that i3 has 3 cores, i5 five and i7 seven, sorry thats wrong. About 90% of us actually dont know the difference between the three, and are usually fooled by the shopkeepers and end up paying high, actually they themself don’t know what the difference in the three, but now you would no more been in dark and I am going to tell you something you really want to know.
The first thing that comes in mind when we here these intel
processors name is that they are having that many cores in them, but thats not
true. Intel core i3 is dual core with 3.33Ghz frequency or what we call the
clock speed. While on the other hand even intel core i5 is dual core(except
for the i5-661, are quad cores in Australia) the only major differnce is bought
in by intel core i7 processor that boast of a quad core processor. So the
question arises that on what bases is these ratings of i5, i7, i3 given, actually
the ratings dependts on the specification and the technology of the processor
like the number of cores, clock speed, cache memory, hyper threading, power
unit and intel turbo boost. These words maybe unknown to you so we are going to
discuss it in detail and then find the basis on the names. The number of cores
are already discussed, now we will see other features.
Power(stars) of CPU
This term is a bit misguiding, it has nothing to do with the processing
power, it here stangs for the energy comsumption and saving, like i3 has 3
stars, i5 has 4 and i7 has 5 stars, now you might be thinking about the 1 and 2
stars, they are celeron and pentium respectively. \
Cache Memory
This is a really important part of the rating, and very few of us know
its correct importance, the cache memory is just like RAM but is very very fast
and has less space for storing, the cpu(processor) has it inbuilt and it
generally stores that data which the processor has to use every time form the
hard disk, hence it saves it and uses it so increasing a lot of work speed. The
i3 has 3 MB while i5 has 6MB(except the one we talked before has 4MB). This is
were core i5 gets its advantage starting. While on ine hand RAM works as an
intermediate between the processor and the hard disk, the cache memory works as
an intermediate between the ram and the processor.Intel Turbo Boost
This is the latest technology
offered by intel due to which the main difference between core i3 and core i5
occurs. In this technology, the processor can increase its speed any time when
their is alot of load, but this technology in available only in core i5
processors and no in core i3 and when i5 uses it, its speed boosts to 3.60GHz, outshining
the poor i3 with only 3.3GHz clockspeed.
Hyper Threading
This is nother term that many of us are not aware of. Its another
technology by intel which controls the process taking place, like a processor
single unit can work on only one thread ata time or if the processor is dual
core then two threads at a time, but with this hyper threading technology a
single processor can work on more than one thread at a time hence if dual core,
then 4 threads at the same time. This is present in core i5 and not in i3 due
to which core i5 really gains a lot of points and hence was named i5 with two
new technlogy and same cores.
