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← ScienceWhich mechanism limits computational speed when executing numerous conditional branching functions in a CPU design?
A)Increased thermal resistance of heat sink
B)Pipelines stalling due to branch prediction✓
C)Electromigration causing data corruption
D)Clock skew exceeding timing margins
💡 Explanation
When a CPU executes multiple conditional branching functions, branch prediction is needed, but incorrect predictions cause pipeline stalls because the CPU must flush incorrect instructions from the pipeline and fetch to the correct address. Therefore pipeline stalling limits speed, rather than thermal resistance, electromigration, or clock skew that arise from different physical limitations.
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