I'm using a Macbook 2008 unibody, i've upgraded the internals to 8GB RAM and 256SSD. The display and battery life are the two parts of the laptop which see outdated. I'll buy a new Macbook Air/Pro in the future but I know I can keep using my current machine until then. My question is what have been most peoples experiences when considering a Mac purchase based on Intel's Tick Tock formula? Is the newer micro architecture e.g Haswell with its impressive battery life more of a driver and more important than lets say the performance in the Ivy Bridge shrink from Sandy Bridge? I am not comparing between Haswell vs Ivy Bridge. I'm considering whether to buy in 2015 a new Macbook with Broadwell (the shrink of Haswell) or wait until late 2015 but more likely 2016 for the new micro architecture Skylake. Thoughts and advice please. (taken from Wikipedia: "Tick-Tock" is a model adopted by chip manufacturer Intel Corporation since 2007 to follow every microarchitectural change with a die shrink of the process technology. Every "tick" is a shrinking of process technology of the previous microarchitecture (and sometimes introducing new instructions as with Broadwell) and every "tock" is a new microarchitecture. Every year to 18 months, there is expected to be one tick or tock).