The most hardcore overclockers are without a doubt familiar with the SuperPI low-clock challenges. The challenges limit the CPU frequency to a fixed MHz and allows for software and memory tuners to show their optimization skill. In our forums we have a couple of low-clock challenge threads running and we've just updated all the rankings. For those who don't want to locate all the threads and top scores in the forums, we've compiled an easy overview with links to the threads and the scores in the table below.

Congratulations to all the leaders in their specific category. Top stuff!

SuperPI 32M Low-Clock Challenge
Category	Time	Overclocker		CPU	Memory	Motherboard
Haswell-E 4G	7 min 20.594 sec		Dancop	Core i7 5960X	G.SKILL Ripjaws 4 1509 MHz C11-13-15-13	ASUS Rampage V Extreme
Haswell 5G	5 min 54.578 sec		Splave.ROM	Core i7 4770K	G.SKILL PI 1410 MHz C6-10-6-21	ASRock Z97 OC Formula
Ivy Bridge 5G	6 min 16.094 sec		Bullant	Core i7 3770K	G.SKILL PI 1327 MHz C6-10-6-27	GIGABYTE Z77X-UP5 TH
Sandy Bridge 5G	6 min 31.031 sec		Bullant	Core i7 2600K	Patriot 2000EL 1112 MHz C6-8-6-18	ASRock Z77 OC Formula
Kaveri 5G	13 min 23.411 sec		Delly	A10-7850K	1256 MHz C9-11-11-31	MSI A88X-G45 Gaming
Vishera 5G	14 min 13.312 sec		I.nfraR.ed	FX-9370	G.SKILL PI 1300 MHz C8-12-8-28	GIGABYTE 970A-UD3
Richland 5G	14 min 14.625 sec		Newlife	A8-6600K	G.SKILL TridentX 1196 MHz C8-9-9-8	GIGABYTE G1.Sniper A88X
Trinity 5G	14 min 20.156 sec		Calathea	Athlon X4 750K	Corsair Dominator 1333 MHz C9-12-12-24	GIGABYTE F2A85X-UP4
Kabini 2.5G	21 min 31.433 sec		Woomack	Athlon 5150	1013 MHz C9-10-10-28