Many threads on here testing out individual components, however this test gives every part of your rig a score and an overall score.
It's free to download and use for 30 days, then it locks after that.
Download the test here (32bit or 64bit) - PassMark Performance Test download page
They also have a section on the website to show what your cpu, gpu and ssd should be scoring so its useful to diagnose if your hardware isn't running quite as it should.
Give it a try and post your results
Here's mine from a while back when I first setup my new rig and clocked the cpu to 5ghz