Afterburner shows you GPU temps and allows you to overclock.
If you want a lighter weight program or don't want to OC you can download GPU-z, it has a sensor tab that lets you see the same kind of stuff as Afterburner. Plus it shows you details of your GPU.
Hmm thanx and BTW any info about the fans can i control the speed of all three of them or only one ? cuz there is only one connector for fan in mobo
I bought a gigabyte hd 7850 and an easyboost software came with it it helps in OCing i want to know which is best for OCing Afterburner, GPU-z, easyoost or through catalyst and any info on how to check temp of Cpu????