| AMD Radeon HD 7970 Video Card Review |
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| Media Espresso 6.5 |
Media Espresso is a video conversion program that uses the graphics processing unit of the video card to speed up the conversion process. We converted a 449 MB, 1920x1080i, 18,884 kbps, MPEG2 video file to a smaller 640x360, H.264, .MPG4 file for viewing on a portable device such as an iPhone or iPod Touch. We also ran this test on our two CPUs (Core i7-980X and Core i7-3960X) in order to compare the difference in performance of using a high-end CPU and a high-end GPU to transcode video. 
Media Espresso 6.5 | Seconds | Difference | Radeon HD 7970 (PCI-E 3.0) | 29 | | Radeon HD 7970 (PCI-E 2.0) | 36 | 19% | GeForce GTX 580 | 44 | 34% | Core i7-3960X | 46 | 37% | Radeon HD 6970 | 48 | 40% | Core i7-980X | 65 | 55% |
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