Generally yes. Lower power envelope usually equate to lower temps.
I'd personally feel better if my load wasn't so close to the thermal max which is around 70-ish if I remember - but, if your load temp looks stable and safe.
Try turning on C'n'Q if you haven't. It should drop your idle temp a bit and sometimes will cut the temp when your running a limited threaded app.
How's the ventilation in your case? I've also got a 125w rated 955 with a small 95w rated Zalman 9500 cooler and at 3.6 my load temps max around 44-48c tops, but... my case also has two 250mm side fans that alone could tame an exposed P4
Seriously try CnQ. As far as performance goes, it only degrades it by 0.5% and that is the 500 milliseconds it takes to go from 800MHz on all four cores to 3.xGHz.
Okay one your a dick. Two juat aaking others opinions on here so *** yourself. I hope this gets me banned cuz if everyone is like you not gonna be any help at all not to bash on otgers.. andnot everyone is a looser who sits at their xomp all day looking *** up..