> 1070 Ti can do at least 50fps at 4K maximum quality in all tested games [1] Looking at the data in the link you provided, this does not seem to be the case.

> 1070 Ti can do at least 50fps at 4K maximum quality in all tested games [1] Looking at the data in the link you provided, this does not seem to be the case. 26.3 @ Deus Ex: Mankind Divided 34.3 @ Grand Theft Auto V 36.8 @ Ghost Recon Wildlands 42.5 @ Dawn of War III 44.0 @ Total War: Warhammer 53.3 @ Battlefield 1 56.0 @ F1 2016 56.9 @ Ashes of the Singularity 63.9 @ DOOM The tested 9 games result in a median of 44.0 fps, average of 46.0 fps. Certainly well below at least 50fps. > a dual 1070 Ti workstation should be able to do 4K 120hz just fine As someone with experience running tri-crossfire in the past, a 2.4x improvement claim from SLI seems suspect. Let's look at some data of what actually happens with 1070 Ti SLI. [2] 1.39x @ Middle-Earth: Shadow of War 1.66x @ Ghost Recon Wildlands 1.67x @ Deus Ex: Mankind Divided 1.73x @ Battlefield 1 1.86x @ Destiny 2 1.90x @ Grand Theft Auto V 1.91x @ Rise Of The Tomb Raider 1.95x @ Sniper Elite 4 The tested 8 games result in a median of 1.80x fps, average of 1.76x fps. Definitely less than 2.4x. > a quad GPU setup is more reasonable Unfortunately the scaling factor plummets fast after the 2nd card. Three or four cards usually means you're well in the realm of diminishing returns. What's more, SLI/CrossFire have frame pacing issues. The resulting microstutter is annoying on a regular screen, but even more harmful in VR. Then there's also the problem that some rendering techniques are not compatible with SLI/CrossFire, and thus some games are not. GPU driver support actually adding SLI/CrossFire support comes several months after the release of the game as standard practice. To make matters worse, everything GPU related is just the beginning of one's problems when it comes to really high frame rates. Computing animations, physics, game rule logic at 120Hz+ also demands real good CPU and RAM. A good widely deployed example of this is the Xbox One X. Although it has a powerful GPU it still delivers frame rates as low as 10 in CPU-heavy games like PUBG. Most games have to target 30, and 60 is available only to a select few. -- [1] https://www.anandtech.com/show/11987/the-nvidia-geforce-gtx-1070-ti-founders-edition-review/4 https://www.anandtech.com/show/11987/the-nvidia-geforce-gtx-... [2] http://www.guru3d.com/articles_pages/geforce_gtx_1070_ti_2_way_sli_review,20.html http://www.guru3d.com/articles_pages/geforce_gtx_1070_ti_2_w...