IDF: Banias fever breaks out
Core architecture
The Banias processor has been developed by Intel’s Israel-based design team. The primary objectives for the project were the development of efficient control commands, increased data capacity and a completely new power management system.
Efficiency is achieved using a combination of several technologies. The Advanced Branch Prediction Unit in the Banias core analyses a program's previous behaviour and predicts which operations it is likely to request in the future, resulting in higher performance. According to Intel this is the most revolutionary piece of technology to be found in processors today. Thanks to this extreme efficiency, control cycles are shortened and higher performance is achieved.
Micro-op fusion technology allows several commands awaiting execution to be merged into one, delivering both better performance and lower power consumption.
The new platform’s power management system is not limited to the processor. To save energy, parts of the processor bus allow lower voltage swing and tight buffer management, resulting in lower power consumption by providing power only where it’s required. Also, the Dedicated Stack Manager uses dedicated hardware to keep track of internal accounting, so that the CPU is not interrupted when executing instructions.
Conclusion
With Banias, Intel is demonstrating its intention to lead the mobile market. The competition, such as Transmeta and VIA, will have a hard time keeping up with Intel, while arch-rival AMD has nothing comparable to offer. Banias also demonstrates that a processor doesn’t necessarily have to run at a high clock speed to achieve good performance.