Intel Core Solo uses the same two core die as the Core Duo, but features only one active core. There remains a high demand for single-core mobile processors, and it is more economic for Intel to disable one of the cores of the existing dual-core design than to launch a new production line of CPUs that physically only have one core. Moreover, this approach allows Intel to sell CPUs that fail to pass quality control by virtue of one of their cores being defective.
The following table identifies the various Core Solo models and their principal characteristics:
| Processor Number | Cache | Clock Speed | Front Side Bus | Power |
|---|---|---|---|---|
| T1400 | 2 MB L2 | 1.83 GHz | 667 MHz | 27W |
| T1300 | 2 MB L2 | 1.66 GHz | 667 MHz | 27W |
| U1400 | 2 MB L2 | 1.20 GHz | 533 MHz | 5.5W |
| U1300 | 2 MB L2 | 1.06 GHz | 533 MHz | 5.5W |