What are the hardware differences between the Xbox 360 slim and the Xbox 360 E?
Are there any significant improvements or benefits of the Xbox 360 E that one should consider?
The 360S(lim) and 360E are fairly similar, with some slight differences:
Notable elements kept constant:
I just want to add insight into why the E might be cooler.
I don't have an S but about it feeling like a better build and the E having a thinner case, well that would in fact make huge differences in heat transfer. The better build probably insulates more than than the other. The reason this wouldn't make any difference on the noise levels would be because the fans are mounted right on the other side of a plastic grill. Both models use the same case fans now if the E was a cheaper build AND stayed cooler they should've invested in a couple pennies for a quieter fan.
That could've taken way too much away from the S though, who knows...