CPUID longer than 2 byte?

To put it simply: what is the difference between CPUIDs 1067Ah and 67Ah?

a) Are they completely different ,
b) The +10000h is a flag of something (Penryn vs Merom maybe?)
c) Are they the same?

I see these CPUIDs at cpuworld, and f.x. in the T9xxx family both of them appears, so I assume they are related somehow...