Seminar i7

7/28/2019 Seminar i7

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Intel Core i7Processor


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What is a CPU? TheCPU is the brain of every computer.

Architecture is based on Moore's Law .

Processing speed measured in(GHz)(1.8 GHz to 3.4 GHz)

The most common processor is 32-bit, 64 bit is also used.

Intel pentium,celeron and AMD

sempron,athlon,phenom etc..


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Processor Types

1.Pin Grid Arrangement(PGA)

Older type of processors.

Contains a set of pins.

Larger in size

High Power consumption.

Inserted into PGA socket
http://www.intel.com/en_UK/Consumer/Learn/Desktop/core2xe-detail.htm?iid=learn_proc-uk+c2xe_desktop


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2.Land Grid Array(LGA).

Contails a set of Grids.

Smaller in size.

Low power consumption.

750-1500 grids.

LGA socket.
http://www.intel.com/en_UK/Consumer/Learn/Desktop/corei7-detail.htm?iid=learn_proc-uk+corei7_desktop


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Intel core i7

Latest processor from Intel.

Its a quad core processor, revolution in multi-core

performance

It is based Nehalem processor design(64 bit Architecture)

Boost performance on demand and maximize datathroughput.

Increase performance up to 40 percent without increasingpower consumption
http://www.intel.com/en_UK/Consumer/Learn/Desktop/corei7-detail.htm?iid=learn_proc-uk+corei7_desktophttp://www.intel.com/en_UK/Consumer/Learn/Desktop/corei7-detail.htm?iid=learn_proc-uk+corei7_desktophttp://www.intel.com/en_UK/Consumer/Learn/Desktop/core2xe-detail.htm?iid=learn_proc-uk+c2xe_desktop


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FEATURES OF i7

1.Quad core processing

CPU that includes 4 complete execution cores,installed

together in one CPU package.

Technology that includes two separate dual-core dies.

Each core has its own cache memory.

Communication between core 1, 2 ,3 and 4 usingQPI(Quick Path Interconnect)
http://localhost/var/www/apps/conversion/tmp/scratch_11/images/socket2.jpghttp://www.intel.com/en_UK/Consumer/Learn/Desktop/core2xe-detail.htm?iid=learn_proc-uk+c2xe_desktophttp://localhost/var/www/apps/conversion/tmp/scratch_11/images/socket2.jpghttp://localhost/var/www/apps/conversion/tmp/scratch_11/images/socket2.jpghttp://localhost/var/www/apps/conversion/tmp/scratch_11/images/socket2.jpg


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2.Intel Hyper-Threading Technology

Used to improve parallelization of computations.

For each processor core that is physically present, the OS

addresses two virtual or logical cores.

Delivers two processing threads per physical core for a totalof eight threads for massive computational throughput.

With more threads available to the operating system,multitasking becomes even easier


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3.Intel Turbo Boost Technology(dynamic overclocking)

Enables the processor to run above its base operatingfrequency via dynamic control of the CPU's "clock rate.

Activated when the operating system requests the highest

performance state of the processor.

Implemented in Nehalem-, Sandy-Bridge and Ivy-Bridge basedCPUs, including Core i5 and Core i7.

Frequency increases occur in increments of 133 MHz forNehalem microarchitecture processors and 100 MHz forSandy/Ivy Bridge.


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4. 8 MB Intel Smart Cache(L3 cache)

Its a level 2 or level 3 cache method for multiple execution coresinvented by Intel.

It shares the L3cache among 4 cores

a single core can use the full level 3 cache, if the other cores areinactive

This large last-level cache enables dynamic and efficientallocation of shared cache to all four cores.

L1 cache size is 128kb and L2 cache size is 512kb for each core.


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5. Intel Quick Path Interconnect(QPI)

It helps to move data very quickly and efficiently .

High bandwidth,low latency.

Data transfer speeds as high as 25.6 Gb/s.
http://www.intel.com/en_UK/Consumer/Learn/Desktop/core2xe-detail.htm?iid=learn_proc-uk+c2xe_desktop


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7. 7.Digital Thermal Sensor (DTS)

Provides for more efficient processor and platform thermalcontrol improving system performance.

The DTS continuously measures the temperature at eachprocessing core.

The ability to continuously measure and detect variations inprocessor temperature enables system fans to spin only asfast as needed to cool the system.

Lower noise emissions from the PC.


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8 Intel Wide Dynamic Execution

Improves execution speed and efficiency, delivering moreinstructions per clock cycle.

Each core can complete up to four full instructionssimultaneously.

9. Intel Smart Memory Access

Improves system performance by optimizing the use of theavailable data bandwidth from the memory subsystem and

reducing the effective latency of memory accesses.


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10. A Smarter Way to Work and Play:

Compute-intensive applications such as HD video encoding,want a processor that enables maximum PC performance.

An unprecedented four-core, eight-thread design with IntelHyper-Threading Technology ensures incredible performance.

Double the memory bandwidth for faster memory access.


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Architecture of i7


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Generations of processors

First Generation Intel processor

Uses Nehalem 45nm architecture.

64 bit quad core processor

Metal Gate Silicon Technology.

Integrated memory controller for high speed interconnect perindependent processing core.

Multi-Level Shared Cache


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Second Generation Intel processor

Sandy bridge architecture

Have 32 nm die.

Shared L3 cache.

Support up to 8 physical cores or 16 logical coresthrough Hyper-threading

Eg:core i3,i5.


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Third Generation Intel processor

Ivy bridge processor

22nm architecture

Backwards-compatible with the Sandy Bridge platform

Support up to 12 physical cores and cache of up to 30 MB.

128KB L1 cache,256KB L2 cache and 2-10MB L3 cache.

Eg.core i7 extreme edition.


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Specification of Intel core i7 Extreme Edition


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Socket

Known as the LGA 1366 or Socket B

Contact points


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i5 PROCESSOR Vs i7 PROCESSOR

Feature i5 processor i7 procesor

Socket LGA1156. LGA1366

Turbo mode Only for few versions. Yes(3.2 to3.9)

Memory support Dual channel Triple channel

Hyper-Threading 2cores(4threads) 4core(8thread) &6 cor

e(12 threads)

QPI No Yes

L3 cache No Yes

Integrated Memory

Controller

No Yes

Price 9,600-18,000 13,000-64000.


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CONCLUSION

The Intel Core i7 Processor is a revolution in multi-coreperformance

The added processor threads and L3 Smart Cache willcertainly help boost performance.

The new 32nm Westmere micro architecture reducespower drain down to only 12W .

Best processor in the industry.


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Questions ?


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Documents

Seminar i7