When we first reviewed NVIDIA's new GeForce 9600 GT (review here), we noticed a discrepancy between the core clock speed reported by the driver and the core clock speed read from the clock generator directly.
Also it will have an extra performance advantage when reviewers compare the non-overclocked GeForce 9600 GT against any other card which is commonly done in most reviews. Unfortunately such a massive overclock can often cause instability of the graphics card, maybe so much that the system won't POST at all.
So it auto-overclocks by 'secretly' raising the PCI-bus speed...
What's shady about it:
- it is not openly communicated (advertised) by nVidia
- the driver reports the non-overclocked frequency
so it seems that nVidia deliberately hides this to make people think their cards at stock frequencies are faster then they actually are.
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