[Kal-EL]

Thermalright Ultra 120 Extreme Gets Revised
Thermalright's iconic Ultra 120 Extreme (TRUE) CPU cooler has a new revision. TRUE Rev. B brings along a small design change that the company claims improves its cooling performance a little. Most of its 52 aluminum fins barring the top one have a 'V'-shaped cutting in the center. This perhaps increases turbulence (for better heat dissipation) a little. The resulting temperature drops are estimated around 1~2 °C. TRUE Rev. B has started selling in China for RMB 530 (which is around $79), including fan. Without the fan, $72.95 is all it takes.

Source: Expreview

Small change.