1.   Debian Treiber
    -------------------
backport-Treiber, see https://wiki.debian.org/NvidiaGraphicsDrivers#Version_367.44_.28via_jessie-backports.29

Debian 8 "Jessie"

As of jessie, if you only need basic functionality and don't care about 
performances, the need for the proprietary drivers is pretty much over - 
nouveau now works quite well and works with dual-headed displays by simple 
and easy configuring from within your desktop (for KDE see 
System_Settings/Hardware/Display_and_Monitor/Display_Configuration). The 
proprietary drivers don't provide normal logging and can be a hidden source of 
problems. If you are doing a distribution upgrade, you should at the very least 
remove all the nvidia packages from wheezy, get your desktop working with 
nouveau, then reinstall the nvidia packages if there is a pressing reason.

Add jessie-backports to your /etc/apt/sources.list, for example:

# jessie-backports
deb http://httpredir.debian.org/debian jessie-backports main contrib non-free

Install Linux headers for the kernel you are using. If you are using the 3.16 Linux kernel in Debian Jessie:
    apt-get install linux-headers-$(uname -r|sed 's,[^-]*-[^-]*-,,')

Or if you are already using a Linux kernel from jessie-backports:
   apt-get install -t jessie-backports linux-headers-$(uname -r|sed 's,[^-]*-[^-]*-,,')

Then we can install the package nvidia-driver.
   apt-get update
   apt-get install -t jessie-backports nvidia-driver 

DKMS will build the nvidia module for your system.
Restart your system to enable the nouveau blacklist.

   # Backport einrichten
https://backports.debian.org/Instructions/
   # Wie entferne ich proprietaere nVidia-Treiber?
https://wiki.siduction.de/index.php?title=Wie_entferne_ich_propriet%C3%A4re_nVidia-Treiber%3F


    2.   proprietaerer Treiber
    --------------------------
https://wiki.ubuntuusers.de/Grafikkarten/Nvidia/nvidia/
http://www.nvidia.de/object/unix-de.html
https://devtalk.nvidia.com/default/topic/533434/linux/current-graphics-driver-releases/
http://www.nvidia.com/Download/driverResults.aspx/112992/en-us
https://www.heise.de/newsticker/meldung/Nvidia-veroeffentlicht-Firmware-zur-3D-Unterstuetzung-mit-quelloffenen-Linux-Treibern-3103000.html