That tool if it exists, might add to the error of measurment of CPU/RAM cycles accumulated. Investigate why/how SPEC 2000 is used by measuring each process, CPU dynamic clock rates add complexity to the power consumption calculations
https://www.spec.org/cpu2000/
as do the number of background tasks and deferred proceedure calls and context swaps
For windows I use procexp.exe and learn which colums to add , but this does not measure watts https://technet.microsoft.com/en-us/sysinternals/bb896645.aspx