Not by much, if you count in the energy used to make new CPUs, and the waste you crate by not using an old one; you are better off using an Ivy Bridge than a ne

Not by much, if you count in the energy used to make new CPUs, and the waste you crate by not using an old one; you are better off using an Ivy Bridge than a newest AMD/Intel. I also believe the older stuff is better built in terms of longevity if you cool them properly. I also know the new ones have more crap in them that will allow Intel/Microsoft to block things when they need money.