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Overclocking the Phenom II X6 1075T is a bit more of a challenge compared to its higher-clocked counterpart due to the locked multiplier, although the same principles apply. With an increased core voltage and reduced RAM and IMC multipliers, the reference clock could be increased to determine the cores overclock. Finally, the multipliers were increased back, with some more voltage on their respective parts.
- Baseclock of 268MHz, resulting in 268.9MHz
- CPU multiplier of x15, for a clock of 4033MHz
- HT multiplier of x10, for a clock of 2689MHz
- Memory ratio of 3:10, for a clock of 1792MHz
- Memory timings of 9-9-9-24-1T
- NB multiplier of x10, for a clock of 2689MHz
- CPU voltage of 1.471875V
- CPU-NB voltage of 1.225V
- DRAM voltage of 1.8V
The Phenom II X4 965 maxed out at 4065MHz. It turns out the manufacturing process improvement discussed earlier made a heck of a difference for the overclocking capabilities, as the X4 970 reached an amazing 4254MHz! That is almost 200MHz more than its predecessor. The integrated memory controller also clocked very well, although gains were nothing really astounding. It is also worth mentioning that the latest Deneb die seemed less affected by high temperatures. At this overclock, using a Cooler Master V8, it exceeded the 60oC during stress testing, but stability did not seem to suffer. With the previous Deneb, the cores could reach a certain frequency when they were overclocked alone; factoring in the extra voltage and frequency of the integrated memory controller would bring the die around that 60oC mark and would result in decreased stability on the cores.
- Baseclock of 212MHz, resulting in 212.7MHz
- CPU multiplier of x20, for a clock of 4254MHz
- HT multiplier of x13, for a clock of 2765MHz
- NB multiplier of x13, for a clock of 2765MHz
- Memory timings of 9-9-9-24-1T
- CPU voltage of 1.525V
- CPU-NB voltage of 1.2375V
The difference in achieved frequencies is summarized in the following table:
Would be nice to see = Clock comparisons someday. Like Run the gamut at 4gz.