Sysmon Linux System Activity Monitor – Install Sysmon on Ubuntu
Sysmon is a free and open source GUI based Linux system activity monitor application for Linux. Using this you can monitor your system processes, CPU, Memory, Network, Disks (HDD and SDD) and GPU details. The UI more look like the Windows Task manager. You can check CPU details per core clock speed. It is released under GNU General Public License v3.0. Sysmon is still in early development stage but looking promising.