I have intel celeron what shaders can i have on my minecraft?

1. First, download Forge ModLoader from the forge downloads page (on the internet). You'll see by the version of Forge the version of Minecraft that it will load mods for. For example, I downloaded Forge for minecraft 1.6.4 and I use minecraft 1.6.4.
2. Then, open the Minecraft Launcher, and at the bottom left of the screen, there will be an "Edit Profile" option. Click on that, and select the drop down box for the version of minecraft you would like to have mods/shaders on. (on mine it said "release 1.6.4")
3. Run minecraft, and then close out of it.
4. Open your newly installed Forge version for minecraft, and click "run" then "install client". Wait for it to download.
5. Run the Minecraft launcher and click the Edit Profile option again and select your Forge version for minecraft.
6. Run minecraft again after Forge downloads. On your minecraft menu screen, you should see the Forge version there, and now close out of minecraft again.
6. Go back on to the internet, and find the shader pack/mod you want for minecraft. (but it has to match up with your forge and minecraft version)
7. Download it.
8. Drag it on to your desktop.
9. Depending if you have a pc or a mac, here are the following steps-
Mac-
Open Finder
Click Go (at top of screen) then scroll down to "Go to Folder"
Type in ~/Library
Go to Application Support
Go to the minecraft folder
Go to shaders/mods
Drag in your shader or mod pack
PC: Open the start menu and type in %appdata%
Open the minecraft folder
Open either the shaders or the mods folder
Drag in your shader pack or mod.
Run minecraft

And for both computers-
Enjoy!

The processor doesn't matter a lot (But yours isn't too good), you need to find what graphics card you have.

MEU E INTEL CELERON