We used SiSoft Sandra to do Dhrystone and Whetstone benchmarks. Dhrystone is a synthetic computing benchmark program developed in 1984 by Reinhold P. Weicker intended to be representative of system (integer) programming. The Whetstone benchmark is a synthetic benchmark for evaluating the performance of computers. It was first written in Algol 60 in 1972 at the National Physical Laboratory in the United Kingdom and derived from statistics on program behaviour gathered on the KDF9 computer, using a modified version of its Whetstone Algol 60 compiler.
In Dhrystone benchmark, the Core i7-3770K is a bit slower than Core i7-2600K while in Whetstone, it beats its counterpart by a margin of 10%.