Sandy Bridge runs cooler and overclocks better than Ivy Bridge. The choice is really : Sandy Bridge or Haswell?
Ivy Bridge uses less power and produces less heat than Sandy Bridge due to the move from 32nm to 22nm lithography.
Haswell introduces architecture changes that limit overclocking compared to Ivy Bridge.
@RobCrezz. You got some extreme cooling and really good mobo...you should run this at 4.8GHz even if voltage hits 1.3V.
The thing is, my cooling isnt anything too amazing. Case has 3x 140mm fans and the cpu cooler is great, but not super high end.
Yeah ill give 4.8 a go at some point, I think I might need more than 1.3v though, I seem to remember when I was doing the overclocking that past 4.6 it wanted a lot more voltage than the increments up to 4.6.
Im bulding a computer and my cpu is going to be a Intel cor i7 and am wondering if i should get sandy bridge or ivy brige and what the difference is? thx
You cannot find a Sandy Bridge i7-K series today except maybe on Ebay and you'd probably pay more for it than it cost new, sure won't get one from Newegg!
Building from scratch go for the Haswell i7-4770K.
Ivy bridge is great but you have to have the cooling to overclock it into the higher multiplier ranges stably, and keep the load temperatures under control, I'm running a 3770K overclocked to 5ghz on chilled water cooling.
Most have been able to safely reach 4.2ghz ~ 4.5ghz with their 4770Ks with high end air coolers.