Get GPU Performance Info

I have a W8 computer with an intel GPU. How can I script the automatic grabbing of GPU stats? My plan is to take readings over a time span and output them into a csv.

Things I've looked into:

• CIM class, seen here: 

http://social.technet.microsoft.com/Forums/en-US/943b52c0-ae9d-4157-addd-2b8878e5396b/how-can-i-measure-gpu-loadusage?forum=winserverpowershell

• This post revealed some gpu settings but nothing to do with available memory or % utilization.
• Get-Counter: With NVidia cards, getting performance counters is as easy as calling Nvidia Graphics (something like that) however a quick 

Get-Counter -listset * | Select CounterSetName | Sort-Object CountersetName

reveals that Intel does not provide this feature (perhaps I can import it?)

I'd prefer to do this with powershell because this is just a small portion of a larger script. But I'm willing to use anything if it works.