Intel introduced Graphics Media Accelerator chips GMA 900 and later GMA 950 more than a decade ago. These were integrated graphics solutions came already placed on some of the motherboards specially on that of laptops or smaller mobile computers that were called netbooks. GMA based graphics cards gave a clock frequency of only 166 MHz but it did not take long for the advanced users to figure out that they can be overclocked easily to 400 MHz.
If you still have any of those older computers or laptops (you can buy them really cheap on eBay), then you can use GMABooster tool to overclock the integrated GPU easily. Since both GMA 900 and GMA 950 are very very old GPU chips, system having any of them on the motherboard do not usually run an operating system newer than Windows 8. If you launch it on Windows 7 or 8, then you should right-click on the GMABooster program shortcut and then select Run as administrator from the context-menu.
In the user interface of the GMABooster program, you can choose one of the possibly clock frequencies for the detected GMA chip – 166 MHz, 200 MHz, 250 MHz or 400 MHz. After selecting one of these clock frequencies, you can click on the SET button and it will be applied instantly. You do not have to reboot your system for the changes to take effect. Later on you can check the improved system boost using a tool like GPU-Z
GMABooster is a little tool for enhancing the performance of your old computers that use Intel graphics chips. It works with many older Intel Graphics Media Accelerator series of chips (GMA 900 and GMA 950). Even though not many people are using those older systems, but if you still have such a system around then GMABooster can perhaps give you a little better graphics performance.
You can download GMABooster from https://www.techspot.com/downloads/4828-gmabooster.html.