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Arm: The Silicon Blueprint - [Business Breakdowns, EP.200]

Business Breakdowns

INSIGHT

RISC vs. CISC Architectures

  • RISC (Reduced Instruction Set Computing) and CISC (Complex Instruction Set Computing) represent different approaches to chip architecture.
  • CISC uses complex instructions for specific tasks, while RISC employs simpler instructions combined for complex operations.
  • RISC's initial memory dependence gave way to an advantage as on-chip memory became cheaper, enabling lower power consumption.
  • The key difference is flexibility. RISC offers greater customization, while CISC is limited to x86 (Intel/AMD). ARM's licensing model leverages RISC's flexibility.
  • The open-source RISC-V project offers even greater flexibility, but with potential software trade-offs.
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