Although both cameras process the same volume of data, the 700D shoots faster than the 100D. This is a surprise considering the fact that both cameras feature a DIGIC 5 image processor and share a majority of the same internals. The maximum continuous speed at which you can shoot on the 100D is 4 frames per second (fps) and this is 1 frame per second slower than the 700D which shoots at 5fps.
Canon EOS 100D side view
The DIGIC 5 processor has been adopted from other DSLRs such as the EOS 6D and top-of-the-line EOS 5D Mark III and EOS 1DX. One feature neither camera offers is a quiet shutter release mode for discreet shooting - something that is offered on two key rivals to both cameras, the Nikon D3200 and Nikon D5200.

Canon EOS 700D side view