how do I determine how much VRAM is in the system?

Solution 1:

Since you have an Nvidia card, you should be able to get that information from the Nvidia control panel.

1. Right-click on the desktop and choose NVIDIA Control Panel to bring it up (or go into the start menu).
2. Go to the Help -> System Information menu.
3. Look at the Dedicated video memory in the Display tab under the Details list.

Alternatively if for whatever reason you don't have that available to you, you can look at the system information to get the numbers.

1. Press Win + R to open the Run dialog and enter: msinfo32.
2. Then view the System Summary -> Components -> Display view and look for the Adapter RAM. You'll find the ram size there.

Solution 2:

You should run

dxdiag 

in the search right on top of the start menu (Run input field) . Or you can install somethin like AIDA64 (Everest) that will scan the hardware and give you detailled information about every component on your PC. You can find the video card utilisation under

Display -> GPU

You'll be able to see on your right complete information about your video card and even see the current utilization. Just start a game to see how much memories it takes to run it live.