Checking the graphics card AMD Radeon and NVIDIA GeForce in one system running DirectX 12

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POSTER: computer news   ||   CHECKING THE GRAPHICS CARD AMD RADEON AND NVIDIA GEFORCE IN ONE SYSTEM RUNNING DIRECTX 12	DATE:2015-10-27
One of the interesting features of the new API DirectX 12 from Microsoft will be support of heterogeneous graphics cards within a single system.  This will effectively combine the solutions of both companies - AMD and NVIDIA, as well as collect the configuration of the adapters of different generations. So in DirectX 12 mode is a special mode of rendering the sequential frame  (alternate-frame rendering method), which is called the regime Explicit Multiadapter Unlinked (EMU).  In this mode, the software developers (games) can control access to individual data, and video cards to provide controlled data exchange between them.   An example of the implementation of the regime has been the development of EMU Oxide Games based on the game engine Ashes of the Singularity.  Author site AnandTech conducted a study of modes with a number of configurations and found them promising.  So, when playing with a resolution of 2560 x 1440 pixels couple of GeForce GTX 980 Ti and Titan X showed a performance boost of 46% compared with the single GTX 980 Ti graphics card, which is clearly below potential.  But the "mix" of red and green in the example of the combination of graphics cards R9 Fury X and GTX 980 Ti compared to a single adapter, given the increase in the level of 68-75%, depending on whether the adapter has been leading.  More precise, R9 Fury X as leading video showed the best performance boost.  For comparison, in the ideal case, a bunch of SLI or CrossFire gave an increase of 80%.  When playing with 4K resolution and R9 Fury X as its leading bunch of the GTX 980 Ti showed the growth rate at the level of 65-66% with respect to the single configuration based on the GTX 980 Ti or Fury X. Testing legacy video cards were not always effective, and much depended on the choice of leading graphics card.  In conjunction adapters Radeon HD 7970 and GeForce GTX 680 range of leading the Radeon HD 7970 has given a performance boost of 55%, and the choice of leading GeForce GTX 680 has led to the degradation of performance below the capacity of a single graphics card GeForce GTX 680. Related Products :

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