64-bit & 128-bit Computing!

[Elite]

I was searching through Wikipedia about 64-bit CPUs ad I "bumped" into this:
128-bit CPUs! Have a look here - http://en.wikipedia.org/wiki/128-bit

 

[Cromewell]

That's the FPU, it uses bloody huge registers. The ALU (which contains the registers we use to say 32bit/64bit/etc) uses more reasonably sized ones.