Alright, my friend has asked me for suggestions on what to build. His budget is around $700 and will go up to $800 if need be to get a noticeable boost. I had a quick look and the main thing I keep arriving at is the Radeon HD 7870 graphics card, by no means does this absolutely have to be included in the build but from what I've read it is very good for this type of price range. He hasn't been very specific but I can assume he will be playing high end games such as bf3 and Bioshock Infinite, looking for maybe 60ish fps at 1080p medium to high settings. Greatly appreciate any answers, thanks!
Have a look at this build. It is the best i can search for the price, also it is very much more powerful than the 7870. And the i5 is a beast when it comes to gaming, so this build should be able to play games at good settings without any problems. It can do gaming at Ultra without problems.
You mentioned these two games that is why I included the benchmarks of these two games. You can get a idea of how powerful this graphics card is. I am sure that you would like this build.
You can mark thread as solved anytime when you find the answer you were looking for by selecting that answer as the best answer. It would be appreciated by other guys who are looking for similar answers.