The reference graphics card AMD Radeon HD 6870 uses the powerful graphics processor from AMD's second-generation DirectX 11.Compared to the 6850 version of the chip clock is 900 instead of 775 MHz and the number of shader increased by 160 to 1120 units. What remains unchanged is the 256-bit wide memory interface, which controls 1024 MB of GDDR5 memory. However, the memory clock up 5 percent in 1050 (effective 4200) MHz. Due to the increased motorization of the AMD Radeon HD 6870 scored in games plus a pace averaging 15 percent.

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AMD in the graphics chip architecture of the 6800er series has made improvements to what you learn in the test of reference graphics card AMD Radeon HD 6850. Newly added is in this test with the AMD Catalyst driver version 10.10a a hotfix for the alternative anti-aliasing mode, "Morphological anti-aliasing (MLAA).Simply put MLAA a kind of soft filters for the already rendered image. This graphics processor interpolates the means of the compute shader technology edge with strong differences in contrast with smoother transitions. This mode does the new anti-aliasing little power, but the image gets a slight blur, as the screen shot on the left.

The AMD Radeon HD 6870 transformed in record time high definition video to an iPhone compatible format in. Extremely fast was the graphics processor in the VC-1 encoded files in the WMV container with about 5 seconds for a minute of film. But even for the transcoding of HD Divx file in the AVI container needed the Radeon HD 6870 only 6 seconds per minute of film. In addition, video processor decodes the playback of Blu-ray and HD movies almost single handedly the video stream so that the PC processor at all or only a few percentage points is too busy either. Only for Divx videos per cent was the CPU with an average of 10 calling something more.