Black Hole Benchmark can benchmark your system in three different tests (Multithreaded, Singlethreaded & 4 Threaded) that will test your CPU to the limit.

• Multithreaded will test your CPU's efficiency of running more than one thread without major system lag. The higher you score on this one, the more threads your CPU can handle with a comfortable speed. High multithreaded scores generally mean you can render things faster.
• 4 Threaded tests your CPU's performance in games since most games currently run on 4 threads.
• Single-threaded evaluates how fast the CPU can handle a single, dedicated thread of processing.

Since Multithreaded is arguably the most important and most future-proof test, it has a greater impact on the overall score results than the other individual tests.

You can easily submit your scores from the link inside the program.