CPU Clock Speed (GHz) vs Actual Performance: Why a 3.5 GHz Chip Can Beat a 5.0 GHz Chip
A "5.0 GHz" processor and a "3.5 GHz" processor — and the 3.5 GHz one can be faster for many real workloads, because GHz measures cycles per second, not work accomplished per cycle, and "work per cycle" (IPC) varies enormously between processor designs. Here's why GHz comparisons were more meaningful historically (within same-generation architectures), why core count adds a second dimension GHz doesn't capture, and why benchmarks matter far more than any single specification.
Jun 14, 2026
