The best replacement for overclocking is hyper threading.

The best alternatives to overclocking are rated as following:
★★★★★  hyper threading
★★★★  turbo boost
★★  no overclocking
★  ivy bridge
★  underclocking

Your alternative for overclocking is not listed? Suggest!
Speaking about overclocking, one probably shouldn't forget about rivatuner.

Other search terms related to overclocking and their ratings are:
★★★★★ rivatuner
★ liquid cooling
★ nvidia control panel
turbo boost
You have in mind a companion for overclocking and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of overclocking in all years. Click on graph for more.
overclocking
hyper threading
turbo boost