Depends on the value. If you test half a dozen off a die and they're all sub-spec, they're all binned the same even if some are okay. This is why overclocking

Depends on the value. If you test half a dozen off a die and they're all sub-spec, they're all binned the same even if some are okay. This is why overclocking used to work - if even a small proportion of the chips tested were good to 25MHz, that was a 25MHz batch, guaranteed good to 25MHz. If you got a "lucky penny" that'd go to 33MHz as per the design spec, then good for you! But it wouldn't be guaranteed to do that.