How does the TDP (Thermal Design Power) on the new Minis compare with the 2011 versions?
I have the 2011 i7 quad, but find it very noisy when the cpu is working. If the new models have a lower TDP I might consider replacing it.
I was asking myself the exact same question. since the old and new quad-core CPU have both a TDP of 45 Watts I wouldn't expect a big improvement with the noise. here are the links to both intel CPU's used in the 2011 and 2012 Mac mini Server ->
If I remember correctly the next generation CPU's (Haswell) will have adjustable TDP. I went back from the mid 2011 model (i5 2.5 Ghz) to the 2010 server and could not have been happier - no noise - but can do with slightly more grunt. However I am not prepared to give up my silence so will be eagerly watching what the temperatures and fan noise will be under load. However it is likely that I will wait until the Haswell model comes along. I might be interested in the Ivy base model if it comes with a second drive but I doubt Apple is ever going to supply that.