Originally Posted by aussie
The single largest increase in performance will come from the first chip that has a 1MB L2 cache. The EE have increased L3 cache not L2. Whilst clock speed is important cache (and pipelining) has a bigger impact - the mobile chipsets are a good example of this - slower clock speed but higher performance due in part to a larger (1MB vs 512MB in desktop CPUs) cache.
My choice? Wait for the first CPU with 1MB L2 cache. Until then save your money.