I can still remember the day when I came across the term "bottleneck" for the first time! It was not that long ago- I was stuck with my Pentium IV powered PC which won't run most of my favourite games of that time. Back then I was just a clueless student and thought my CPU was the culprit. But that was not the case as one of my better 'informed' friends rightfully indicated toward my iGPU (Integrated Graphics Processing Unit) which happened to be the lackluster (even by the standards of that time) Intel Extreme graphics. Even though my CPU wasn't the best in class, it still could run those games but my inbuilt graphics was the limiting factor or "bottleneck" as the term implies. Of-course I could've bypassed the whole scenario by simply switching to a separate video card or dGPU (Discrete Graphics Processing Unit) but that would require more space, more power, more hustle and surely more spending which I couldn't afford. This pretty much was the story with most systems back then and while the integrated graphics parts were sufficient to drive the 2D desktop components and images, 3D workloads were beyond both their purpose and capacity. Since then a lot of things have changed in the world of personal computing, but it is only recently that the IGP performance of mainstream PC's has reached a level which is more or less acceptable not only in terms of general computing but also gaming. Today, we'll have a quick look at how Intel's graphics solutions have evolved over time.
