ATI drivers

ATI is a part of AMD so don't be confuse
Auto detect if don't know that model Link 
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Nvidia drivers
Download
auto search if you cant find your model of nvidia chip
Link

Odin for Samsung

Samsung odin 3.09 free
for software ROM installation in very safe procedure use odin
follow the procedure for smart installation drivers are also available on same platform
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Kies

Samsung kies
Perfect solution for Samsung smartphone
for mac and pc users
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