Like the Intel Core i7 back in the year 2008 which runs on 45 nm fabrication have more heat output than the latest Core i7 in the year 2013 even with 4 cores, by the way... the architecture becomes more smaller than its previous generations and even a 6 core CPU can spread its heat efficiently. How they can add more cpu without burning a CPU (overheat faster) itself and does cpu fabrication or architecture plays important role in spreading heat more efficiently?