Task manager a UI like with Windows 10's one
I use system monitor. But, I guess Stacer will meet your choice better
Stacer will show you the culprit using system resources better. As you can see in the screen shot 3, Stacer can list an ascending or descending listing based on CPU or Memory memory consumption. You can see which process is using CPU the most, which process is using Memory the most, likewise. Only colour coding is missing from what you seek. Stacer also gives total CPU and Memory usage.
You can get all these with System Monitor as well.
You can find more options here
http://www.omgubuntu.co.uk/2011/11/5-system-monitoring-tools-for-ubuntu
How about Glances?
See this excellent answer for details and other answers there for just a quick overview of choices.