That all changes as of today as AMD and its partners are topping the success of the HD 5000 Series with the brand new HD 6000 Series. The 6850 and 6870 models are already being shipped all over the world (and even up for sale at a few etailers), offering everyone new and improved performance, thanks to the new 'Northern Islands' codename Barts Pro
core. Spec-wise the model we will be taking a look at (6850) has a core clock of 775MHz coupled with GDDR5 memory running at 1000MHz, while the bigger brother 6870 (Barts XT
) has clocks of 900MHz and 1050MHz, respectively.