OPN of AMD processors

Let's take an example to see what information can be obtained from an OPN.

Assume that the OPN is A1400AMS3C.

• The first "A" indicates that this is an Athlon processor.
  "AX" would indicates that this is an Athlon XP processor,
  "D" would indicates that this is an Duron processor, and
  "SDA" would indicates that this is an Sempron processor.
• The "1400" after the letter indicates the speed of the processor, which is 1,400MHz in this case.
• The next "A" describes the package type, which is a PGA (pin-grid array) in this case.
• The "M" after that indicates the operating voltage.
  ("M" means operating voltage is 1.75V whereas "P" means it operates at 1.7V.)
• The next position indicates the maximum case temperature.
  An "S" indicates a maximum case temperature of 95C whereas a "T" indicates a maximum case temperature of 90C.
• The number "3" which comes next describes the Level 2 cache size, which is 256KB in this case. (In addition to 128KB Level 1 cache.)
• The last one - a "C" indicates that the processor runs with a 266MHz bus whereas a "B" indicates that the processor is only capable of being operated with a 200MHz bus.