To overclock today we are using the latest version of MSI Afterburner which allows for voltage tuning.
Despite the healthy ‘out of the box' overclocked settings, we managed to push the core further, by a whopping 17.8 percent to 1,202mhz. The GDDR5 memory could be pushed by almost 14 percent to 1,709mhz (6.8Gbps effective). We are surprised that MSI didn't supply the memory in an overclocked state, even with a modest 75-100mhz boost.