Yes, it supports upto Pixel Shader 3.0, so you can easily run Vista Ultimate Aero, and new games.
NO it doesn't you can Run red alert 3 with graphic card supporting pixel shader 2 and the shader settings can be applied from the game settings the game will run perfectly fine but will Run on medium or low quality according to Your graphic card capabilities .
On the nvidia side, any Geforce 4000 series or higher should have support for pixel shader 1.1 The 7000 series geforces are very inexpensive right now, and support pixel shader 3.0 and under. On the ATI side, any Radeon over 8500 should have support for at least pixel shader 1.4.
You have to upgrade you graphics card to use this feature
you must have graphics card that supports shader model
It is not possible, since pixel shader 2 is hardwared into the card. You would not be able to upgrade without changing a graphics card.
256 MB graphics card support pixel shader 3.0
You cannot download Pixel Shader because your graphics card should already have and support it. If not, you will need a new graphics card which supports it.
Nowhere. Pixel Shader is a hardware feature that comes with your graphics card. Most graphics cards these days support pixel shader 3.0 or higher and are at a low price.
I believe your graphics card must support pixel shader 1.1 in order to play TF2.
you cant you will have to buy a new graphics card that supports pixel shader 2.0,3.0
Yes. Shader 5.0
No.