Example of a processor with pipelining

http://en.wikipedia.org/wiki/Instruction_pipeline

Microarchitecture Pipeline stages
ARM7TDMI(-S) 3
ARM7EJ-S 5
ARM810 5
ARM9TDMI 5
ARM1020E 6
XScale PXA210/PXA250 7
ARM1136J(F)-S 8
ARM1156T2(F)-S 9
ARM Cortex-A5 8
ARM Cortex-A8 13
AVR32 AP7 7
AVR32 UC3 3
DLX 5
Intel P5 (Pentium) 5
Intel P6 (Pentium Pro) 14
Intel P6 (Pentium 3) 10
NetBurst (Willamette) 20
NetBurst (Northwood) 20
NetBurst (Prescott) 31
NetBurst (Cedar Mill) 31
Intel Core 14
Intel Atom 16
LatticeMico32 6
R4000 8
StrongARM SA-110 5
SuperH SH2 5
SuperH SH2A 5
UltraSPARC 9
UltraSPARC T1 6
UltraSPARC T2 8
WinChip 4
LC2200 32 bit 5
 


In short, pretty much all of them do. What difgfers is the pipeline length.

And rey, stop asking for "best answer".