Fact is people who are complaining about the A5 being in the mini are ignorant. The Tegra3 in the N7 is also an old chip and graphics performance is worst than the A5. That is why the N7 has lag issues since its processor is slower and it has to render a higher resolution.
http://www.anandtech.com/show/6073/the-google-nexus-7-review/5
http://www.anandtech.com/show/6073/the-google-nexus-7-review/5