Identify the Generation of Intel Processor (Model No)

Some of you may not know how to differentiate the model number.

Here is the simple guide.

Model no below 1k normally represent 1st Generation.

for example : i5-750

Model no 2k normally represent 2nd Generation.

for example : i5-2500

Model no 3k normally represent 3rd Generation.

for example : i5-3570

Model no 4k normally represent 4th Generation.

for example : i5-4570

If you ask me what is the difference between the generation ?

It's about the architecture, power consumption and speed.

Of course the latest 4th generation comes with latest architecture. 

Anyhow I still believes that new generation always provide better performance.