I've seen some shops selling AMD CPU's with codes ending with MPK and SPK.
For example Athlon X4 880K is mostly available as AD880KXBI44JC and AD880KXBJCSBX, which, accoring to cpu-world, are tray and boxed versions. But some shops have also FD8320FRHKSPK and FD8320FRHKMPK. What are they? I guess SPK and MPK may stand for 'single pack' and 'multipack', but that doesn't make things clearer. Do you know if they are boxed or tray versions, and do they include coolers?
Could you help me?
I can't say for sure, but think that 'single pack' and 'multi pack' seem like reasonable guesses. If these are single/multi pack, then probably they are boxed products. Tray CPUs usually come on trays of 10 or 12, with multiple trays per pack.
Those don't seem to be official AMD OPNs (ordering part numbers), so you may have to ask the vendor what they are selling, if you want to be sure.