Lower VID generally means better chance of better max OC, but it by no means is a hands down better max OC at all. After reading an Intel document iam not even so sure if a low VID is supposed to be the "better" one, rather a high VID being better but its questionable..
Penitum 4 630 (N0) Batch #: 3527B031, VID 1.3750v - Horrible overclocker, needs 1.62v for 4Ghz stable at 49c while many other N0 stepping 630's need 1.52 ~ 1.55v for 4Ghz stable at even higher temps. Large ammount of others had even higher VID's.
Core 2 Duo E4500 (M0) Batch #: Q712A577, VID 1.2000 - Golden chip, can do 3Ghz at stock 1.20v while 99% of other E4500's can't do 3Ghz untill 1.25v+, only one other user here at OCN has a 1.20v VID E4500 and we got the same clocks at the same volts dead on. Max OC is 3.4Ghz @ 1.36v, can do 3.5Ghz at 1.472v, I seen no one on the Internet that could mimic these 2 overclocks except for the one OCN user. First golden chip I ever owned, this goes to my best friend shortly.
Core 2 Duo E7200 (M0) Batch #: Q811A063, VID 1.1500v - Average overclocker but slightly leaning toward the good side, its currently at 3.8Ghz at 1.296v, needs about 1.392v for 4Ghz not positive yet. Stability is heavily affected by NB straps and dividers so it may even need less volts yet. Others here have higher VID and get 3.8Ghz at slightly less vcore (1.28v).
I can tell you this, high VID or not, overclock it to it's max (safe vcore of coarse
) then compare, only then you can make a decision if its a good chip or not.