Question Memory Configured correctly?

Mach 1 Padilla

Honorable
Feb 7, 2017
20
0
10,510
Hey guys I took a screen shot of what im seeing in task manager and am a little confused In my memory tab I have 7gb out of 18.8gb committed? how can this be since I only have 16GB installed. Also in "in used" memory it says "compressed"? . In the GPU tab it has 8gb in dedicated GPU memory and 8gb in shared gpu memory? I don't want to share any with the GPU and just let it have the on board memory it has. Under GPU memory it has 16gb??? what is going on.

System all stock
MSI B450I MB
3600X
Radeon 580 8gb
16GB 3200mhz ram
Windows 10 pro