A benchmark flagged my CPU frequency as "Extremely low," and I'm trying to understand whether there's a problem with my build. I'm using a Core i7-14700K with an ASUS TUF Gaming Z790-PLUS WIFI motherboard, an Arctic Liquid Freezer III 360mm cooler, and an 850W 80+ Gold power supply. Task Manager and the benchmark usually show the CPU averaging around 5.2 GHz, even though the chip's advertised maximum boost is 5.6 GHz. In a separate CPU benchmark with HWiNFO monitoring, the cores reached 5.6 GHz, but CPU temperature peaked at 94°C. Could the lower average frequency be caused by temperature, power limits, BIOS settings, or the benchmark itself?
4 Answers
The 5.2 GHz figure may be an average across the whole test rather than the maximum clock of a single core. A 14700K will not maintain 5.6 GHz on every core during a heavy, sustained workload. Check the effective clock for each core instead of relying on Task Manager’s single average number.
Your CPU package power being around 125 W could explain the lower sustained clocks. Check the motherboard BIOS for Intel power-limit settings, CPU cooler detection, and any performance or multicore-enhancement options. However, don’t remove power and temperature limits blindly—make sure cooling is adequate first, and compare the result with a few reputable CPU benchmarks rather than one score.
Run a proper monitoring tool such as HWiNFO while the benchmark is running. Check core effective clocks, CPU package power, thermal throttling flags, and whether the processor is hitting PL1 or PL2 power limits. A reported 94°C is warm but not automatically dangerous; the CPU will reduce clocks if it reaches its thermal limit. Also make sure the cooler is mounted correctly and that the pump and radiator fans are working as expected.
Don’t rely on one benchmark’s label alone. The 14700K has a 3.4 GHz base clock and can boost up to 5.6 GHz, but that maximum is normally for light workloads and a limited number of cores. During an all-core workload, the average clock will often be lower depending on temperature, power limits, and how many cores are active. Since your testing reached 5.6 GHz, the CPU is capable of hitting its advertised boost.
With HWiNFO open, the CPU reached 5.6 GHz during the benchmark, although temperatures peaked at 94°C. The monitoring graph suggests it was boosting normally rather than staying permanently at a low clock.