Intel Xeon W3530 Vs I7. This is a dedicated core on the processor and is extremely fast compared to software based codecs that must use the general purpose cores of the processor. It will depend on your needs and your budget.
It has 4 cores and 8 threads with clock of 2.8 ghz that can turbo clock itself to 3.1 ghz. This processor is used in server devices and can consume up to 130 watts of power. Higher scores are better, with double.