尝试使用System.Management命名空间。下面是一个示例代码

using System.Management;    
ManagementObjectSearcher objSearch= new ManagementObjectSearcher("select * from Win32_VideoController");

foreach (ManagementObject share in objSearch.Get())
{   
    // Some logic...

    //if want to loop through properties
    foreach (PropertyData PC in share.Properties)
    {
         //some logic...
    }
}

在SharpDX.Direct3D12中，GPU内存使用情况可以通过

var factory = new Factory4();
var adapter = new Adapter4(factory.GetAdapter1(1).NativePointer);
var device = new Device(adapter, SharpDX.Direct3D.FeatureLevel.Level_11_0);
MessageBox.Show($"Dedicated Memory Usage: {adapter.QueryVideoMemoryInfo(0, MemorySegmentGroup.Local).CurrentUsage}");
MessageBox.Show($"Shared Memory Usage: {adapter.QueryVideoMemoryInfo(0, MemorySegmentGroup.NonLocal).CurrentUsage}");

GetAdapter（1）意味着获取第二个适配器，您可以更改该编号。玩得开心