QUOTE(arslow @ Nov 28 2014, 11:45 AM)
have a 24/7 i3 4130 NAS turned on 24/7, didnt really notice an increase in electricity bill before and after getting it

Haswell standby performance is REALLY low, not much to worry on terms of power consumption
I dont have a Kill-A-Watt meter or anything so can only give a subjective answer to this, but there are many data available online which further proves my point~
if you're not running any form of RAID spread with parity on it, even an atom is more than enough for NAS purposes to just to serve files.
an i3 or an i5 or i7, 22nm process haswell while it's still conservatively low compared to yesteryear processors, it's still not as low as an embedded processor.
the processor itself has a TDP of 54W. expect full load system power to hit ~150W and idle at 50W-100W. if you're running windows as the OS server it will be higher than a console Linux or BSD.

this is haswell running linux server:

yes the OS plays a part in the power consumption.
this is all moot if you run plex media transcoding on the NAS as those require quite a capable single threaded CPU.
QUOTE(jerm @ Nov 28 2014, 08:45 AM)
From kodi testing, the idle is at about 6w, and full steam also, around 15w only IIRC
power brick is rated at 65w, way way lower than a typical htpc. The i3 power brick needs a 45w one only!
my only reason to get this is due to having it being left on 24/7, hence need the low power consumption
it's lower than a typical htpc, but it lacks the multitude of storage options. also the main components are not upgradeable.
you lose quite a lot of htpc flexibility with the intel nuc. it's just a bit better than a media player.
if you need to run it 24/7, an embedded solution like raspi or banana pi have much lower power consumption (~1W) and could be had for ~RM100. and build a proper htpc (~50W power) that you only turn on for high bitrate movies.