The future of SLI and CrossFire is complicated: the multi-GPU configurations at risk


The recent AMD Radeon RX Vega presentation has served to finally meet the new rivals of the NVIDIA GeForce GTX 10x0, and although things are encouraged thanks to the efforts of both companies, there is an area with less promising news .
These are the multi-GPU configurations, for which neither Vega nor Pascal seem to be specially oriented. CrossFire and SLI technologies have been providing an interesting solution for years, but both AMD and NVIDIA prefer that if you want more performance do not add another card, but you buy a more powerful.

AMD and NVIDIA Unmount CrossFire and SLI Configurations

GamersNexus officials commented how at the launch of the new AMD graphics they had noticed the complete absence of mention of CrossFire technology in this new family.
Although AMD Radeon RX Vega 64 and RX Vega 56 will support CrossFire at a technical level, AMD believes the industry is leaving behind multi-GPU configurations . It is unclear what will be the advantage of having two of these cards in CrossFire, but it all suggests that the performance gain may not compensate unless the developers offer specific support in games for these types of configurations.
In NVIDIA takes the same thing happens: when the Pascal architecture was released and the GTX 10x0 graphics family was debated on SLI support, and what was surprising is that there is no longer official support for configurations with more than 2 cards of this family In SLI.

Paying for an SLI or CrossFire might not pay off

The latest analysis assessing the behavior of these configurations only confirms that perception: in BabelTechReviews they did a recent test with two GTX 1080 Ti, and they tested it with 25 games in both DX11 and DX12. Of the 25, in 9 there was no performance improvement, 2 of them improved according to resolution, and another needed to be played in DX11 because in fact playing DX12 ended up offering smallerframerates .


It is true that in some cases the improvement was remarkable (usually 20%, there were improvements of up to 90%) especially when playing in 4K resolutions , but as explained by those responsible for the analysis, DX12 games have problems to behave as if Waiting in SLI configurations, and it is the developers who must work specifically to make those configurations real sense.
We are faced with a situation in which recommending SLI configurations is problematic: these multi-GPU systems seem to take advantage only if one plays in 4K, and yet not all titles benefit from those configurations ... or not enough for Compensate financially .
To this must be added another of the trends that seem most promisingin the field of graphics cards: the launch of multichip solutions that mimic what has happened to the market of multicore processors.

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