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:
Other than the above, the Xbox 360 E is meant to be cooler (temperature) and quieter, though no-one can notice the difference.
I have the Slim and the E. They both make the same noise when running. The Slim feels like a better build. The E is a good looker, but has a cheap thin case. Other than that, they both work the same with any game. So, if you have a Slim and it's OK, keep it.