ASUS Radeon HD 7870 DirectCU II 2 GB @ techPowerUp
 

The ASUS Radeon HD 7870 Direct CU II is a highly overclocked custom version of the Radeon HD 7870. Coming at clock speeds of 1100 MHz GPU and 1250 MHz memory, it is a good deal faster than the AMD reference design. Thanks to aggressive pricing, the card retails at $360, which means there is no price increase for overclocking.

http://www.techpowerup.com/reviews/A..._Direct_Cu_II/