Hi endriu,
All 4th Generation Intel® Processors (Celeron® to Core™ i7) will support up to the C6 low power state
and all 4th Generation Intel® Core™ Processors (Core™ i3 to Core™ i7) will support up to the C7 low power state but I want to verify if the Haswell Pentium Pentium platform supports it too.
I will check on this and I will be back with more information.