-Bryceleen D’souza,Crystal Cuthinho, Leon D’souza, Nevil

D’souza

COMPARISON OF I3,I5, I7

What is a processor? History Intel gives the world i3 In comes i5 I7 processor Comparison of i3,i5,i7

CONTENTS

WHAT IS A PROCESSOR

With the release of the Nehalem microarchitecture in November 2008,[16] Intel introduced a new naming scheme for its 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),[17] which correspond to three, four and five stars in Intel's Intel Processor Rating[18] following on from the entry-level Celeron (one star) and Pentium (two stars) processors

HISTORY OF PROCESSORS

From its early 8-bit beginnings, the Intel architecture now encompasses a range of 32-bit and 64-bit

microprocessors that address a range of applications, performance requirements, power levels, and price

points.

1971The first tiny Intel 4004 microprocessor chip

was made

i3 PROCESSOR

The first Core i3 processors were launched on January 7, 2010.

Dual core processor.

Includes features like hyperthreading, HD graphics

Brief introduction about i3 processor

FEATURES1.

• The Core i3 is a 3.2 GHz dual core chip, and it's quite a big improvement over the Core2Duo.

2.• Low power consumption, with significantly faster

RAM.

3. • Uses less heat and energy than earlier processors, which is always a good thing in this day and age.

The Intel Turbo Boost Technology allows a processor to dynamically increase its clock speed whenever the need arises. The maximum amount that Turbo Boost can raise clock speed at any given time is dependent on the number of active cores, the estimated current consumption, the estimated power consumption, and the processor temperature.

Intel Turbo Boost

The faster the clock speed in MHz, the faster each core can run. This can create some variances in performance. For example, a Core i3-4370 Haswell processor runs at 3.8GHz. It would be faster running a single-threaded application, which can only use one core, than a Core i5-4590, which only has a clock speed of 3.2GHz. However, running a multi-threaded application, the Core i5 would most likely be quicker, as its four real cores are better than the Core i3's two cores and Hyper-Threading.

Clock Speed

Any CPU that has a model ending with a K means that it the CPU is unlocked. This means that you can use BIOS settings to up the clock speed of the chip, overclocking it yourself. We've seen big improvements in performance this way - we pushed the Intel Core i7-4790K chip to 4.7GHz!

K Models

Whenever the CPU finds that it keeps on using the same data over and over, it stores that data in its cache. Cache is just like RAM, only faster — because it’s built into the CPU itself. Both RAM and cache serve as holding areas for frequently used data. Without them, the CPU would have to keep on reading from the hard disk drive, which would take a lot more time.

Basically, RAM minimises interaction with the hard disk, while cache minimises interaction with the RAM. Obviously, with a larger cache, more data can be accessed quickly. The Haswell (fourth generation) Core i3 processors have either 3MB or 4MB of cache. The Haswell Core i5s have either 4MB or 6MB of cache. Finally, all Core i7 CPUs have 8MB of cache, except for i7-4770R, which has 6MB. This is clearly one reason why an i7 outperforms an i5 — and why an i5 outperforms an i3.

Cache size

i5 PROCESSOR

FEATURES

• I5 provides the opportunity to the users to use the system with multi tasking.1.

• A big feature of the I5 processors is that they have ability to run two multitasking processors together that are generally called as dual processors and can increase the working performance of the system efficiently.

2.• I5 processors have ability to work with integrated

memory and can enhance the performance of the applications. The increase the memory up to 1333 MHz3.

Processor Number

Cache Clock Speed

#of cores#of threads

Max power

Graphics

I5-4200H 3.0 MB 2.80 GHz 2/4 47 Intel HD Graphics 4600

I5-4440 6.0 MB 3.10 GHz 4/4 84 Intel HD Graphics 4600

I5-4440S 6.0 MB 2.80 GHz 4/4 65 Intel HD Graphics 4600

I5-4400E 3.0 MB 2.70 GHz 2/4 37 Intel HD Graphics 4600

Available i5 processor.

Architecture of i5

i7 PROCESSOR

With the help of I7 processors users can enjoy the high speed working with the additional feature of the multitasking i.e. using two different documents or the files at the same time.

Dual core technology is also a part of I7 processors that provide reliable and high data rate working performance to the customers

I7 processors are so advanced to deals with the integrated memory of e system and have ability to increase the memory up to 1066 Mbits and provide the working speed of 25.6 GB/sec

FEATURES

Processor number

Cache Clock speed

#of cores#of threads

Max power

Graphics

I7-4960HQ

6.0 MB 2.60 GHz 4/8 47 IntelIris Pro graphics 5200

I7-4600M 4.0 MB 2.90 GHz 2/4 37 Intel Iris Pro graphics 4600

I7-4600U 4.0 MB 2.10 GHz 2/4 15 Intel Iris Pro graphics 4400

I7-4610Y 4.0 MB 1.70 GHz 2/4 Intel Iris Pro graphics 4200

Architecture of i7

DIFFERENCE

DIFFERENCE

Core i7-4790

Core i5-4690

Core i3-4350

0 4 8

4

5.9

10

Time in Seconds

Time in Seconds

Core i7-4790

Core i5-4690

Core i3-4350

040

000

22244

16655

10

Total MIPs

Total MIPs

32MB Dictionary-7-zip Benchmark

Custom Workload-Microsoft Excel

Core i7-4790

Core i5-4690

Core i3-4350

21 22 23

23

23

22.3

GB/s

GB/sCore i7-

4790

Core i5-4690

Core i3-4350

0 200 400

260

247.1

131.6

141.7

139.2

75

L2 (GB/s)L1 (GB/s)

MEMORY BANDWIDTH

Cache Performance

This is the mid-size processor of this bunch, recommended for those who demand a little speed, but not quite enough where the user will be able to run intensive applications.

As with the Core i3 processor, this comes with 2-4 cores, the main difference is that it has a higher clock speed than the Core i3.

This is also a heat and energy efficient processor, but it does seem to be better at this particular job than the Core i3.

The number of threads used in this is no different than the Core i3 with 2-4 threads , it also uses hyper threading technology for a boost in performance.

The cache of the Core i5 is bigger than the Core i3. The Core i5 is in turbo mode is made available, this provides users

with the opportunity to turn off a core if it’s not being utilized.

i5 over i3

This is for the users that demand power, The cache on this one is for the users that demand

more cache memory. The cache on this one is 4-8 MB. This processor comes with 8 threads, definitely enough

to get the job done quickly, maybe even at the speed of light. And yes it also utilizes hyperthreading technology.

You will have four cores to take advantage of with this particular series.

And just like the other ones in this Intel series of processors, it is more energy efficient and produces less heat.

i7 over i5

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