HD 3000 in Intel’s second generation Core ‘Sandy Bridge’ processor was a pretty big step forward for integrated graphics — it adds significant gaming capabilities to thin, light, and efficient Ultrabooks, without the need for discrete graphics. HD 4000, introduced with the third and current-gen Core ‘Ivy Bridge’ processor took things one step further by doubling the performance over Sandy Bridge. With the fourth and next-gen Core ‘Haswell’ processor, slated to launch in Ultrabooks and other systems in 2013, Intel is once again doubling performance over the previous generation.
