Super Pi Mod 1.5	Source: SuperPI

SuperPI calculates the number PI to 1 Million digits in this raw number crunching benchmark. The benchmark is fairly diverse and allows the user to change the number of digits of PI that can be calculated from 16 Thousand to 32 Million. The benchmark, which uses 19 iterations in the test, is set 1 Million digits. Lower calculation times are better. SuperPi is not multi-threaded..

Super Pi Mod 1.5 XS (single-threaded) 1 Million Digits: (sec) Points Ranking Intel Core i7 920 15.313 Intel Core i5 750 15.678 Intel Core 2 Duo E8400 15.553 AMD Phenom II X6 1090T 19.573 AMD Phenom II X6 1075T 20.062 AMD Phenom II X4 970 Black Edition 19.906 AMD Phenom II X4 965 Black Edition 20.374 AMD Phenom II X4 910e 26.177 AMD Phenom II X2 555 Black Edition 21.206 AMD Athlon II X4 645 26.005 AMD Athlon II X4 635 27.144 AMD Athlon II X4 620 29.828 AMD Athlon II X3 435 27.222 AMD Athlon II X2 240e 27.285 8 Million Digits: (sec) Points Ranking Intel Core i7 920 171.781 Intel Core i5 750 174.876 Intel Core 2 Duo E8400 196.529 AMD Phenom II X6 1090T 243.064 AMD Phenom II X6 1075T 251.051 AMD Phenom II X4 970 Black Edition 251.816 AMD Phenom II X4 965 Black Edition 255.482 AMD Phenom II X4 910e 319.991 AMD Phenom II X2 555 Black Edition 268.32 AMD Athlon II X4 645 283.671 AMD Athlon II X4 635 296.868 AMD Athlon II X4 620 324.667 AMD Athlon II X3 435 296.713 AMD Athlon II X2 240e 303.639 16 Million Digits: (sec) Points Ranking Intel Core i7 920 375.969 Intel Core i5 750 414.725 Intel Core 2 Duo E8400 441.066 AMD Phenom II X6 1090T 545.58 AMD Phenom II X6 1075T 561.96 AMD Phenom II X4 970 Black Edition 564.425 AMD Phenom II X4 965 Black Edition 573.395 AMD Phenom II X4 910e 712.541 AMD Phenom II X2 555 Black Edition 601.771 AMD Athlon II X4 645 627.355 AMD Athlon II X4 635 656.839 AMD Athlon II X4 620 719.676 AMD Athlon II X3 435 657.058 AMD Athlon II X2 240e 660.954

SuperPi is an older, non-multithreaded benchmark but still a fun one to throw at new processors.

Although the Athlon II X4 645 is clocked at an impressive 3.1GHz, this single-threaded benchmark only takes advantage of 1/4 of the CPUs' capabilities. The AII X4 645 manages to calculate Pi to 16 million digits in just over 627 seconds, while the quad core Intel Core i5 750 does the same task in significantly quicker 414 seconds.