CINEBENCH is a real-world cross platform test suite that evaluates your computer’s CPU performance. Cinebench R15 is a totally free utility and is available for download here.
wPrime is a leading multithreaded benchmark for x86 processors that tests your processor performance by calculating square roots with a recursive call of Newton’s method for estimating functions. wPrime is a free utility that is available for download here.
The SiSoft Sandra Dhrystone and Whetstone benchmarks are widely used measures of compute power and performance for a wide array of real world usage scenarios. You can find out more details on these tests here or download SiSoft Sandra here.