Stefan Mileschin

The first two new versions of the HD 7850 being introduced by SAPPHIRE have 2GB of the latest DDR5 memory. The standard model will ship with a core clock speed of 860MHz, and. memory clocked at 1200MHz (4.8Gb/s effective). At the same time SAPPHIRE is introducing a higher performance model, the SAPPHIRE HD 7850 OC Edition, with the faster clocks of 920MHz core and 1250MHz (5Gb/s effective) for the memory. Offering excellent performance at an even keener price point, the third model in the series is the SAPPHIRE HD 7850 1GB model which will ship with the core clock of 900MHz and memory at 1200MHz (4.8Gb/s effective).

All three models are equipped with a dual BIOS, and the new output configuration of Dual link DVI-I, Dual link DVI-D, HDMI and Display Port. They also feature SAPPHIRE's latest dual-extractor cooler technology - Dual-X - a highly efficient multi-heatpipe cooler with dual fans providing quiet and very cool operation during normal operating conditions, and superb cooling performance even under extreme load.

http://www.techpowerup.com/169097/SA...50-Family.html