I've seen a lot of people heavily criticising the new iMacs, but one thing that seems to stand out is the consensus that the base 21.5" model is not very good at all. Looking at the specs and coming from using a six year old Windows laptop, the base model appears to be very good, with some major improvements from the previous model. The processor looks great, more than powerful enough for most things, 8GB RAM standard is nice to see, a 1TB HDD as standard is also nice (Apple were never going to put an SSD as standard as they wouldn't have been able to put a high enough capacity one in without raising the price dramatically, aggravating even more people), and the 640M appears to be better than the Intel HD 4000. However, so many people have been calling it 'an insult', 'terrible' and so on. Are they correct, is the 640M really that bad? The 15" rMBP has pretty similar specs to the base iMac, and can seemingly run games very well (it has a 650M but that can't be that much better, can it?). So what's wrong with the iMac? Any help is greatly appreciated, as I am looking to purchase this and would appreciate some specific comments on it.