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What's non-RISC about POWER? IBM's power consumption is probably mostly because they've never put the processors into energy sensitive applications. More impo
by Nelson69 11y ago
What's non-RISC about POWER?
IBM's power consumption is probably mostly because they've never put the processors into energy sensitive applications. More importantly, they are sold because of some benchmarks and extreme reliability.
- jhallenworld 11y agoIt's a superscalar CPU running Tomasulo’s dynamic scheduling algorithm to extract instruction level parallelism. Once you are beyond two-issue in-order processors, the CISC vs. RISC distinction becomes a minor point. Note that most ARM processors are two-issue in-order, so RISC is still relevant at the low end. Compare power consumption of ARM vs. equivalent Atom processor. Intel has a process advantage with Atom, but ARM is still lower power.