The Geforce 9100 is integrated graphics that is part of the Nvidia chipset on the motherboard. Its temperature is the same as system (chipset) temperature.
If it's a dedicated graphics card, please check its model number again. The dedicated Geforce 9xxx series GPUs actually have a maximum GPU temp of 105°C.
In any event, your temp's are nothing to worry about as of now. Like wa1 said, we'll worry if it hits 90+