Nvidia GeForce GTX 1080 Ti review (incl. SLI): faster card for the same price

Titan X made obsolete by new GTX 1080 Ti


GTX 1080 Ti SLI performance

How much performance do you gain when using two GTX 1080 Ti cards in SLI? We have seen that there is generally some performance boost, but that it differs per resolution. Here you can see the average gain in the ten games we have tested.

  GTX 1080 Ti GTX 1080 Ti SLI Improvement
Full HD Medium 191,1 173,7 -9,1%
Full HD Ultra 131 140,5 7,3%
WQHD Medium 166,4 156,6 -5,9%
WQHD Ultra 109 124,9 14,6%
Ultra HD Medium 109,4 121,8 11,3%
Ultra HD Ultra 67,3 86,3 28,8%

In Full HD and WQHD Medium bottlenecks prevent a performance gain, while the increased overhead of SLI means a decreased performance. Even in Full HD Ultra, WQHD Ultra and Ultra HD Medium, the performance gain is limited. The only scenario where SLI is really interesting (considering the price) is if you want to play taxing games in Ultra HD Ultra. The 28.8% performance gain means a lot, and it gets you 60+ fps in nearly all games.

The next step is gaming on 4K with three screens, in other words, 12K. A few small tests show that the GTX 1080 Ti SLI is extremely powerful, even in such settings. In Ghost Recon: Wildlands, you can get 64 fps at High settings and 12K. This new game, by the way, supports the new Gameworks 'Turf' feature (announced at the same time as the GTX 1080 Ti), which Nvidia claims will enable games to render grass more realistically. 

You can't play the very highest settings, at least on this game, but this is still impressive given the challenges of 12K gaming. Compare it to a single GTX 1080 Ti, where you can get 'only' 50.9 fps. 


two products discussed in this review

  Product Lowest price

Nvidia GeForce GTX 1080 Ti

GP102, 3584 cores, 1481 MHz, 11264 MB, 352 bit, DirectX 12 fl 12_1, PCI-Express 3.0 x16

Specifications Test results Reviews

Nvidia GeForce GTX 1080 Ti SLI

GP102, 3584 cores, 11264 MB, 352 bit, DirectX 12 fl 12_1, PCI-Express 3.0 x16

Specifications Test results Reviews

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