full difference b/w corei7 2nd gen &4th gen

[soumya ranjan]

what r the differences b/w corei7 2nd gen
& 4th gen? and what r the performance differences,difference in data transfer rates ???

 

[Emerald]

one of the main differences is they use different sockets

2nd Gen socket 1155
4th Gen socket 1150

 

[Lessthannil]

2nd Gen (Sandy Bridge) uses LGA 1155, while the 4th Gen (Haswell) uses a new LGA 1150 socket.
Haswell processors perform better across the board than Sandy Bridge.
Haswell processors have a lower TDP than Sandy Bridge processors.
The thermal interface material (TIM) that Sandy Bridge processors use with the IHS and the die is superior to the ones use in Haswell processors.
Sandy Bridge processors overclock better than Haswell Processors.
Haswell processors consume less power overall than Sandy Bridge processors.