The Intel video chips are as about as far from 3D high performance as you can get. You PC has the Intel 810 chipset for the core logic. The video chip happens to be bundled in with the rest of the functions (HD controller, memory controller, etc.) The video portion of this chipset "borrows" its memory from the system RAM. It only has 4 MB of dedicated video memory.

http://developer.intel.com/design/chipsets/810/

If you plan to use 3D software (games, flight sims)
do yourself a favor and get a true 3D video card. Before you do this, you need to determine if your PC has an AGP slot. 99% of 3D cards have an AGP interface. If you only have a PCI slot available, about the best you can do is get a card based on the nVidia TNT2 chip. If you have AGP, find a card based on the nVidia GeForce chip series. The actual brand is not terribly important. All manufacturers basically build the nVidia reference design. There are many variants of this chip. (way too many to talk about here) I have a GeForce3 Ti200. I suggest some reviews on hardware sites.

http://www.tomshardware.com
http://www.tweak3d.net

Hope this has helped.