The thermal design power (TDP) is the maximum amount of power the cooling system needs to dissipate. A lower TDP typically means that it consumes less power.
2.Higher turbo clock speed
vs 3.3GHz (the average)
vs 5GHz (best: AMD FX-9590)
When the CPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.
3.Uses hyperthreading technology
vs No (59% don't have it)
Many of Intel's processors use hyperthreading, which means that each core of the processor can work on two threads at once instead of most processors which work on a single thread per core. This means you can have significant performance gains in certain applications.
4.Supports ECC memory
vs No (74% don't have it)
Error-correcting code memory can detect and correct data corruption. It is used when is it essential to avoid corruption, such as scientific computing or when running a server.
5.Slightly higher SSE version
vs 4.1 (the average)
vs 4.2 (best: Intel Core i7-4770K)
SSE is used to speed up multimedia tasks such as editing an image or adjusting audio volume. Each new version contains new instructions and improvements.