Energy Efficiency: AMD vs. Intel
Stepping 101: Telling an L from a B
As long as the processor is still in the retail package, the stepping can be identified by the specification number on the side of the box. Currently, there are only three spec-numbers for the L2 stepping. They are easy to remember, as they differ in only one letter and are easy to tell apart from others: they all begin with "SL9T".
As of this writing, the family of Core 2 Duo processors comprises nine different models, three of which can be identified as using the L2 stepping:
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| Processor | Spec-Number | Stepping | Frequency | Cache |
|---|---|---|---|---|
| E6700 | SL9ZF | B2 | 2.66 GHz | 4 MB |
| E6700 | SL9S7 | B2 | 2.66 GHz | 4 MB |
| E6600 | SL9S8 | B2 | 2.40 GHz | 4 MB |
| E6600 | SL9ZL | B2 | 2.40 GHz | 4 MB |
| E6420 | SL4AT | B2 | 2.13 GHz | 4 MB |
| E6400 | SL9S9 | B2 | 2.13 GHz | 2 MB |
| E6400 | SL9T9 | L2 | 2.13 GHz | 2 MB |
| E6320 | SLA4U | B2 | 1.86 GHz | 4 MB |
| E6300 | SL9TA | L2 | 1.86 GHz | 2 MB |
| E6300 | SL9SA | B2 | 1.86 GHz | 2 MB |
| E4300 | SL9 TB | L2 | 1.80 GHz | 2 MB |
More about cpus
