Hi there! I just changed my MoBo to an ASUS P8H61-M LE and in the UEFi has the option to overclock the GPU, i did it reaching 1450MHz and it's working great, in Windows Experience Index i use to have 4.4 on Windows DEsktop Performance and in Gaming Performance 5.7. Now i have 4.3 on the first and 5.9 on the second. It's safe to leave it like this or can i overclock it a little more? Thanks!!!