Here’s the thing so many of the reviews are using the Intel Core i7-3770K Ivy Bridge 3.5GHz (3.9GHz Turbo) with Intel HD 4000 because of harmonious clock speeds, then again that’s a $329 part, and yes a A10-5800K can't match in CPU throughput that’s understandable.
However, HD 4000 can’t do anything close to what a $125 A10-5800K can provide in graphics. It’s all what you think your needing more, and how much that costs you. The problem is the real match is with the i3-3225 Ivy Bridge 3.3GHz with HD 4000 as $145 part.
That the straight-up challenge, and not any reviews I reading are doing that match-up here it is at Hexus.