Difference b/w Intel 4th generation and 3rd generation processors

Intel had recently announced new series of their processor, the 4th generation Intel i3, i5, i7 processors. The previous version of Intel i3, i5, i7 processors are build by 32nm microarchitecture. The new processors are build by 22nm microarchitecture, main differences in the generations is intel processors is shrinking of sizes of die in nano scaling. These 22nm 4th generation processors are codename "Haswell". On June 4th, 2013. Intel had officially announced new CPUs with 4th generation Haswell processors at Computex Taipei 2013.

UPDATED : Check out "Difference Between Intel 5th Generation and 4th Generation Processors"

Intel 4rd generation (Haswell) processor IVB-Die

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Difference between Intel 4th generation processors and 3rd generation.

Difference b/w Intel 4th generation and 3rd generation processors - Techzost blog

The 3rd generation is called "Ivy Bridge," and is basically a copy of Sandy Bridge manufactured on a smaller scale, or die. However, Intel also focused on beefing up the integrated graphics in this processor. Haswell processors are based on 22nm technology support up to 4 cores / 8 threads at 2.4GHz and 6 MB last level cache boosting computing performance while enabling the latest virtualization techniques and CPU enhancements. Onboard soldered low voltage DRAM with ECC is supported for maximum reliability and optional memory expansion via an SODIMM socket extends the capacity to up to 16GB for the most demanding applications in high performance or virtualized environments. Dual channel design and memory speeds up to 1600 MT/s along with increased cache size and enhanced cache algorithms guarantee maximum memory performance and some efficiency features, faster memory controller, a improved Integrated GPU, some new instruction sets and chipset additions and supports.

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What's Changed Between 3rd Gen and 4th Gen Intel® Core™ processors?

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Tech Specification of new 22nm Haswell Processors :

Product Name

Intel® Core™ i7-4770S Processor (8M Cache, up to 3.90 GHz)

Intel® Core™ i7-4700EQ Processor (6M Cache, up to 3.40 GHz)

Intel® Core™ i7-4770TE Processor (8M Cache, up to 3.30 GHz)

Code Name

Haswell

Essentials

Status

Launched

Launch Date

Q2'13

Processor Number

i7-4770S

i7-4700EQ

i7-4770TE

# of Cores

# of Threads

Clock Speed

3.1 GHz

2.4 GHz

2.3 GHz

Max Turbo Frequency

3.9 GHz

3.4 GHz

3.3 GHz

Cache

8 MB

6 MB

8 MB

Bus Type

DMI

System Bus

5 GT/s

# of QPI Links

Instruction Set

64-bit

Instruction Set Extensions

SSE 4.1/4.2, AVX 2.0

Embedded Options Available

Yes

Lithography

22nm

22 nm

Max TDP

65 W

47 W

45 W

Thermal Solution Specification

PCG 2013C

PCG 2013B

Recommended Customer Price

TRAY: $303.00
BOX : $305.00

TRAY: $378.00

TRAY: $303.00

Memory Specifications

Max Memory Size (dependent on memory type)

32 GB

Memory Types

DDR3-1333/1600

DDR3L-1333,1600

DDR3-1333/1600

# of Memory Channels

Max Memory Bandwidth

25.6 GB/s

ECC Memory Supported

Yes

Graphics Specifications

Processor Graphics

Yes

Graphics Model

Intel® HD Graphics 4600

Graphics Base Frequency

350 MHz

400 MHz

350 MHz

Graphics Max Dynamic Frequency

1.2 GHz

1 GHz

Graphics Output

eDP/DP/HDMI/VGA

Intel® Quick Sync Video

Yes

Intel® InTru™ 3D Technology

Yes

Intel® Insider™

Yes

Intel® Wireless Display

Yes

Intel® Flexible Display Interface (Intel® FDI)

Yes

Intel® Clear Video HD Technology

Yes

# of Displays Supported

Expansion Options

PCI Express Revision

3.0

PCI Express Configurations

Up to 1x16, 2x8, 1x8/2x4

Up to 1x16, 2x8, 1x8 2x4

# of PCI Express Lanes

Package Specifications

Max CPU Configuration

T_JUNCTION

100

Package Size

37.5mm x 37.5mm

37.5mm x 32mm x 1.6mm

37.5mm x 37.5mm (LGA1150)

Graphics and IMC Lithography

22nm

22 nm

Sockets Supported

FCLGA1150

FCBGA1364

FCLGA1150

Low Halogen Options Available

See MDDS

Advanced Technologies

Intel® Turbo Boost Technology

2.0

Intel® vPro Technology

Yes

Intel® Hyper-Threading Technology

Yes

Intel® Virtualization Technology (VT-x)

Yes

Intel® Virtualization Technology for Directed I/O (VT-d)

Yes

Intel® VT-x with Extended Page Tables (EPT)

Yes

Intel® Trusted Execution Technology

Yes

AES New Instructions

Yes

Intel® TSX-NI

Yes

Intel® 64

Yes

Intel® Anti-Theft Technology

Yes

Intel® My WiFi Technology

Yes

Idle States

Yes

Enhanced Intel SpeedStep® Technology

Yes

Thermal Monitoring Technologies

Yes

Execute Disable Bit

Yes

Intel® Secure Key

Yes

Intel® Identity Protection Technology

Yes

Motherboard built with sockets LGA 1150, rPGA 947 and BGA-1364 supports new Haswell processors.

Finally words:

Without get very technical, the primary differences for the average person are relatively small.

Haswell consumes very less power; such It can run a new MacBook for more than 12 hours (full day). - via

Slightly more processing power. On average with the same clock speeds Haswell CPUs are faster than 3rd generation CPUs.

Haswell is just perfect, Perfect computing, Perfect Battery life and Perfect inbuilt Perfect Graphics (IRIS Graphics).

Source & Important links:

http://en.wikipedia.org/wiki/Haswell_(microarchitecture)

http://blog.laptopmag.com/intel-4th-generation-core-processor-benchmarked

http://en.wikipedia.org/wiki/Ivy_Bridge_(microarchitecture)

http://www.digitaltrends.com/computing/what-you-need-to-know-about-intels-4th-gen-haswell-processors/

http://ark.intel.com/compare/75610,75124,75469

http://en.wikipedia.org/wiki/LGA_1150

http://www.pcpro.co.uk/news/382363/new-macbook-air-gets-haswell-for-all-day-battery-life