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The first five reviews that Google found all overclocked the 975 but failed to touch the CPU-NB at all. I don't know why reviewers even bother to overclock if they aren't going to use the techniques that have been common knowledge since the release of the 940BE. One review even mentioned certain benchmarks not scaling with the overclock due to a memory bottleneck and failed to catch the obvious solution.
The first five reviews that Google found all overclocked the 975 but failed to touch the CPU-NB at all. I don't know why reviewers even bother to overclock if they aren't going to use the techniques that have been common knowledge since the release of the 940BE. One review even mentioned certain benchmarks not scaling with the overclock due to a memory bottleneck and failed to catch the obvious solution.
Yes, that would make it simpler but it would also limit you to the weakest link of the two. While the ratio of core to NB overclocks shows an obvious trend there are always outliers. As someone who knows enough to overclock the CPU-NB I wouldn't want the option taken away for simplicity alone. Besides, it is far easier for people to learn how to tweak the CPU-NB multiplier and voltage (since it's the same concept at core overclocking anyway) than it is for AMD to redesign the processor.Judging from the way things are going with the latest Sandy Bridges, multiplier only overclocking may be all that is left. I wonder whether AMD is going to do the same thing with Bulldozer by tying everything to a central clock like the SB's. As a result, the K series can only be overclocked stably by upping the multiplier.
Apart from being AMD fanboy/hwbot record hunter/having old am2/3 mobo why would anyone buy this cpu ?
It does not really make a lot of sense unless you already have an am3 board. If you had to buy a new new motherboard you would do better in bang for buck, performance and power usage in a SB i5-2300 or i5-2400 chip. Although neither of these i5s would be good for overclocking and there should not be any restrictions on overclocking on the 975. But then if you are overclocking you do not need this chip you can get a lower model instead and probably get the same overclock.