You can get an idea from link the below
What are the system requirements for installing r80.10 on our own Hardware?
I assume you mean installing as VM?
I had 8 GB on my laptop as well and it was ugly. Since upgrading to 16 GB it works well. Running a SMS and a gateway simultaneously is very smooth now.
Agreed, if you are installing in a VM on a Windows machine, using a machine with anything less than 16GB of RAM is asking for trouble.
If you're just talking about SmartConsole, SmartDashboard, etc, it should be fine.
I think the network adapter is important...
I also can suggest the good ole CP HCL page :
GAiA and SecurePlatform Hardware Compatibility List
Man, just don't do it... This is a bad idea. I am sure it will work very slow.
Retrieving data ...