Overclocking Testing and Results
AMD Phenom II X6 1090T 6-core Thuban Processor Review - Processors 79
Without much elbow grease, I was able to push all 6 cores of the 1090T up to nearly 4.0 GHz on basic air cooling.

AMD Phenom II X6 1090T 6-core Thuban Processor Review - Processors 80

AMD Phenom II X6 1090T 6-core Thuban Processor Review - Processors 81

    Much like the previous Revision C3 Deneb processors in X4/X2 livery, the X6 can achieve near 4 GHz overclocks with very minimal effort.  Ryan was able to get to over 3.9 GHz with 1.48 volts and a fairly stock cooler.  I was able to get to around the same speed with a much smaller 1.43 volts and a better cooler.  Those with water cooling can expect another couple of hundred MHz in speed.  For those not interested in extreme overclocks, then a 3.6 GHz overclock using stock voltage is also possible with this particular sample.  I have also heard of certain samples hitting 3.7 GHz and 3.8 GHz at stock voltages as well, but I was not nearly that lucky.

    Taking the northbridge portion to 2.4 GHz is also very easy, and it results in a hefty performance boost.  As users may or may not remember, the northbridge portion consists of the memory controller, HT controller, and the L3 cache.  By increasing the speed of the memory controller and the L3 cache in particular, the processor gains a few % of performance for very little effort.  Using DDR-3 1600 memory with the NB clocked to 2.4 results in streaming bandwidth numbers closing in on 16 to 17 GB/sec.

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