“RISC vs CISC” offers a comprehensive exploration of two fundamental CPU design philosophies that have shaped modern computing. The book traces the evolution of processor architecture from the 1970s when researchers began questioning traditional approaches, leading to a pivotal debate that would influence decades of technological development.

Through detailed technical analysis, it examines how Reduced Instruction Set Computing (RISC) and Complex Instruction Set Computing (CISC) approaches have competed and ultimately converged in contemporary processor designs. The narrative systematically compares these architectures across three core aspects: instruction set architecture, pipeline implementation, and performance metrics.

Using real-world examples like ARM's RISC-based mobile processors and Intel's x86 architecture, the book illuminates how these design philosophies have adapted to meet changing computing demands. Readers gain insights into how CISC's complex multi-operation instructions contrast with RISC's simpler, efficiently pipelined approach, and how modern processors often blend elements of both philosophies.

The book bridges theoretical concepts with practical applications, exploring crucial topics like power efficiency, thermal management, and market dynamics that influence processor design decisions. Written for computer engineering professionals and students, it maintains technical accuracy while remaining accessible, incorporating benchmark data, microarchitecture diagrams, and case studies to illustrate key concepts.

Rather than advocating for either approach, the text examines how both RISC and CISC principles continue to influence emerging technologies, from mobile computing to specialized AI processors.

Isaac Berners-Lee

Books