Why install this driver?

Your NVIDIA video card will work on your Fedora 11 box without this driver, however if you want to enable the 3D acceleration (if you want to use Compiz Fsuion) you need to install it.

Which driver to use?

The latest nvidia driver: This is a proprietary driver that works with newer nvidia cards.
The legacy nvidia driver: This is also a proprietary driver, but it works with older nvidia cards.
Current list of Legacy NVIDIA drivers:

• Legacy version (173.xx series)
• Legacy version (96.xx series)
• Legacy version (71.xx series) Note: This driver is not available in RPM Fusion repository.

More from this website.
You need to identify which nvidia driver is ideal for your video card. Open up your terminal and type this command:

This will print the video card vendor and codes as both numbers and names.

01:00.0 VGA compatible controller [0300]: nVidia Corporation NV18 [GeForce4 MX 4000] [10de:0185] (rev c1)

You need to find out the PCI ID of your nvidia video card. In this example, I am using an old NVIDIA GeForce 4 video card and its PCI ID is 0185. According to this link the ideal driver for my video card is Legacy version (96.xx series) driver.

Installing the Driver

Enable RPM Fusion repository

List of available nvidia driver in the RPM Fusion repository.

kmod-nvidia - The latest nividia driver	
kmod-nvidia-173xx - Legacy version 173.xx
kmod-nvidia-96xx - Legacy version 96.xx

Then install the driver

or

Please note that we are installing the driver for the old GeForce 4 video card. If you have latest video cards just type this command:

or

What is the difference between kmod and akmod package?

If you installed the kmod-nvidia package and its dependencies, each time the kernel was updated you need to download a new kmod-nvidia package that corresponds to the new kernel.
The akmod-nvidia is different, each time you update your kernel and reboot the machine akmod-nvidia compiles its own version of the modules needed for the kernel.
More from this website.