Effective frequency of memory = basic frequency of memory x memory type (DDR3 times 2, DDR5 times 4)
The basic memory frequency of GTX680MX is 1250MHZ. See GPUZ test diagram of GTX680MX for details.
I hope it helps you. & lt/p & gt；
& ltp & gt
& lt/p & gt；
& ltp & gt& lt/p & gt；