PS W:\> Get-Process | Sort-Object -Property CPU -Descending | Select-Object -First 1

Handles  NPM(K)    PM(K)      WS(K) VM(M)   CPU(s)     Id ProcessName
-------  ------    -----      ----- -----   ------     -- -----------
    356      46   181064     220064   701 1,329.86   2084 chrome