Shootouts

Intel Z68 - The True Sandy Bridge Chipset

By Vincent Chang - 12 May 2011

Overclocking

Overclocking

For our overclocking test, we tried to achieve the highest possible stable CPU frequency by increasing the CPU multiplier, while leaving the base clock untouched at 100MHz. For the core voltage, we pushed it to a maximum of 1.45V, though often, there was little difference between 1.4 and 1.45V in getting that maximum frequency, in which case we took the lower of the two voltages.

The auto-overclocking tools (if any) included with these boards were also tested, though the best was the ASUS P8Z68-V PRO, which unfortunately was a mediocre 4.4GHz. The ASUS Maximums IV Extreme was also included here as a reference example of how a top P67 board performed.

Our conclusion here, limited as it is to three samples, is that we couldn't find any significant overclocking advantage for the new Z68 chipset. The maximum 5.1GHz we managed was replicated on both the ASUS boards, regardless of the chipset. It does seem that we are constrained more by our processor. The overclocking results are listed below:

Our Overclocking Results
Model Maximum Overclock Achieved
Voltage Used
ASUS P8Z68-V PRO

5.1GHz 
(Maximum auto-overclock = 4.4GHz)

 1.4V
 Gigabyte GA-Z68X-UD7-B3  4.7GHz  1.4V
MSI Z68A-GD80 (B3)
 4.9GHz
(O.C Genie = 4.2GHz)
 1.4V
ASUS Maximus IV Extreme 5.1GHz 1.48V