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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
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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.
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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
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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)
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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.
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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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