Simply download and unzip CoDBench.zip. Run the "Setup.exe" file from unzipped folder. You will be presented with options on the path you would like CoDBench to be installed to. You will be asked which Startup Menu folder you would like CoDBench shortcuts to be placed.Before running any benchmarks you need to turn "VSYNC" off in your video driver options. CoDBench is based on Q3Bench (QuakeIII Benchmark software).
This is the first public beta. If you have any issues please report them in the CoDBench forums
CoDBench requires the 1.2 version of Call of Duty Multiplay.
This is the link to the CodBench official homepage
with more install and overall usage help .