difference between sandy bridge and ivy bridge

The small speed bump provided to the Early 2014 Core i5 model only gave a minuscule performance gain over the Mid 2013 Core i5 model, the Core i7 chips are actually identical. So, the difference between the Core i7 processors is 15/18 (reference/overclocked), while that for the Core i5 CPUs is only 9. Ivy Bridges temperatures are reportedly 10 C higher compared to Sandy Bridge when a CPU is overclocked, even at default voltage setting. Interestingly the Core i5 Haswell benchmarks are actually marginally lower than the Core i5 Ivy Bridge benchmarks, it looks like Apple sacrificed processor performance in favour of lower power chips to maximise battery life in these models. The difference between the Sandy Bridge and Ivy Bridge benchmarks are quite minimal, the main increases are found between the Core i7 models. Approximately each year Intel releases a new generation of these Core i5 and i7 processors, with upgraded microarchitecture, that have codenames designated to them. As we saw previously with the 13-inch MacBook Pro, there is not a huge increase in processor performance between the Mid 2011 and the latest Early 2015 Air, 27% for the Core i5 model and 38% for the Core i7 model.

Since the introduction of the Mid 2011 13-inch MacBook Air, Apple has incorporated Intel’s low power dual-core Core i5 and i7 processors, a significant upgrade over the older Core 2 Duo models.

Difference between sandy bridge and ivy bridge