The GPU will be overclocked using Sapphire’s TRIXX software. In our testing of the Sapphire R7 260X we found the GPU could be overclocked to 1255MHz from the factory overclock of 1150MHz. In addition the GPU memory could be overclocked 125MHz over the base 1650MHz for an overclock speed of 1775Mhz. These overclocks resulted in a 9% overclock for the GPU clock, and a 7.5% overclock for the memory.
Overclocking greatly depends on the hardware and the skill of the overclocker; even with the same hardware overclocking success can be different. Utilizing the UEFI BIOS of the Gigabyte Z77X-UP5 TH the multiplier is raised to 43, overclocking the CPU from 3.4GHz to 4.3GHz.
The overclocking done on the Gigabyte GA-Z77-UP5 TH motherboard and the Sapphire R7 260X was a very quick and simple overclock. Neither were overclocked very aggressively, and potentially could be overclocked a little further, however somebody overclocking their system further than this most likely will be using a higher end CPU and GPU.