This time around the lower model number is much more likely to overclock high enough to reach the reference speeds of the higher model number. The HD 6950 is not as overclockable as the 6850, but that might be due to the GUI limits of the overclocking software that the reviewers were using. Some reviewers were unable to clock their HD 6970s higher than 950/5,800 and their HD 6950s higher than 840/5,300.





