Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
Was undervolted by -0.1V when arrived with Cinebench R20 score of ~2,400. Able to further undervolt to -0.165V for ~10% increase in Cinebench R20 score to ~2,600. Needed to use ThrottleStop to undervolt as Intel XTU's settings would not stick. Didn't see any difference in Cinebench R20 score with Turbo on or off.