Can I use 2 GPU at the same time?
If you have 2 identical video cards, enough PCI slots on your motherboard, and enough spare output from your power supply, then yes. You can bridge two video cards together. Nvidia calls their implementation of this SLI, while the AMD version is called Crossfire.
Is it worth having 2 GPUs?
By having a dual graphics cards system you could, in many titles, get noticeably higher performance than having a single flagship GPU. Further, in some cases, running two mid-range cards in SLI or Crossfire would match and even exceed the performance of top tier GPUs.
Can you use MULTIple GPUs without SLI?
Yes, you can run dual non-SLI or crossfire graphics cards. They don’t even have to be both Nvidia or both AMD to work. You can even run both integrated graphics and a discreet graphics card together in a non-SLI or non-Crossfire configuration.
Is multi-GPU good for gaming?
If you’re strictly using your computer for gaming, it’s not advisable to have a multi-GPU system today. You won’t be able to maximize your PC, and you’ll under-utilize your resources.