I would assume it causes longer loadings like on wii, so SSBB would load in 20 seconds instead of 0. I haven't tried the latest rev though, but that's the easiest way to tell.
Specs: intel i5 3570k @ 3.4GHz;
16Gb RAM; Raedon HD 7900;
Win8 64-Bit
16Gb RAM; Raedon HD 7900;
Win8 64-Bit