Personally, I’ve found it to be well worth it, as some really great games use it, and to spectacular effect. Furthermore, PhysX often appears in very high-end games that use plenty of other advanced features, in which case you want to give your PC all the help it can get.

You can just dedicate a GPU to process only physics in the graphics card options if you have multiple cards. Considering that most newer Nvidia/AMD GPUs are compatible with Physx, you don’t really need one. You’d be better off getting a second graphics card. The CPU does a great job of acting at the physx device.

With AA enabled, running physics on a GPU will generally be much faster than running physics on a CPU when AA is enabled. PhysX running on a dedicated GPU allows offloading the PhysX processing from the GPU used for standard graphics rendering, resulting in an optimal usage of processing capabilities in a system.

Yes, this can technically work—both cards will give you graphical output. However, different cards cannot be linked together to function as a GPU array (CrossFire or SLI), so you generally won’t be able to use them together to render graphics in games. The cards will operate independently of each other.

Scalable Link Interface (SLI) is a brand name for a multi-GPU technology developed by Nvidia for linking two or more video cards together to produce a single output. SLI is a parallel processing algorithm for computer graphics, meant to increase the available processing power.

SLI/Crossfire has a major obstacle: game implementation. If a game do not support multi-GPU (mGPU) properly, then running GPUs in SLI will not yield any increases in framerates, in some cases it can even DECREASE it.

Regardless, the 61 frames per second that the GTX 1080 gets at 4K is totally playable and ties the performance of the RTX 2070.

You can”t SLI GTX 1080 Ti and GTX 1080. 1080ti will run any game on ultra settings in 1080p. On 4k everything will run in smooth 60fps with High/Ultra settings.

Didn’t do SLI with a 1080Ti specifically, but ran a SLI config with 980s for some time. Totally not worth it – few games are bothering with support for SLI, and patches/drivers break frequently. There are also so few SLI users that when support breaks it takes forever (sometimes never!) for it to get fixed.

It’s true: Nvidia’s GeForce GTX 1080 officially supports only 2-way SLI setups.

a regular GTX 1080 with just +2 VRAM I don’t think is worth it. SLI is more about pushing your resolution than your FPS. The thing many people tend to forget is the higher your FPS, the more likely you’ll see a CPU bottleneck. If you play games below 4k with SLI 1080Ti’s, you won’t get good scaling.

So SLI has nothing to do with cryptocurrency mining and would seriously limit you mining efficiency. But you could certainly use SLI in gaming and then disable it when you are mining. So SLI has nothing to do with cryptocurrency mining and would seriously limit you mining efficiency.

Minimum 600 W or greater system power supply with one 6-pin and one 8-pin PCI Express supplementary power connectors. Prior to unpacking your new NVIDIA GeForce GTX 1080 Ti graphics card, it is important to make sure you meet all the system requirements listed on page 4 for a smooth installation.