ChipsHacker Newsabout 14 hours ago
On CPU Physics and CPU Cycles
1 min read
A draft book chapter explains that the physical distance electrical signals travel inside a CPU core directly affects access speed, not primarily due to the speed of light but due to parasitic capacitances proportional to connection length. A register-register operation like a += b moves data from registers to ALU and back, and pipelining is standard in 64-bit CPUs.
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