I overclocked my Sapphire Radeon HD 7870 from 1050MHz to 1250MHz and memory clock from 1250MHz to 1400MHz. My games are running without problems at the moment, they did however shut down at 1300MHz.
Is 1250MHz too high (because 1300MHz sure was) or is it ok if my PC can handle it? (in the long term)
Is 1250MHz too high (because 1300MHz sure was) or is it ok if my PC can handle it? (in the long term)