A few months later in May Intel launched an updated Sandy Bridge chipset called Z68 which essentially takes the best features of the P67 and H67 and combines them into one. With a Z68 board, users can overclock the CPU and use the integrated Intel HD graphics. Previously, if you wanted to overclock, you had to buy a P67 board and you had to use a discrete graphics card. If you wanted to use the integrated graphics, you needed an H67 board but then you couldn't overclock the CPU. In addition to these combined features, Z68 also introduces a new feature called Smart Response Technology (SRT) which uses a solid state drive to cache data from a traditional spinning hard drive.