Free download graphic card who support pixel shader

You can not download GPU since it is hardware!
If you tell us what you are trying to do and with what we might be able to help!

Perhaps he wants a schematic for a Star Trek replicator, so he can replicate an year 2362 equivalent of a GeForce x90  

I think he found a game he can't run that requires pixel shaders he doesn't have, and he knows almost nothing about computers, so he thought it was a download. How he got to tomsHARDWARE, I have no idea.