Getting two or more graphics cards to do one job sounds like a great idea in theory but in reality, it may not yield such great results.
There have been a host of issues that plagued both AMD’s Crossfire and Nvidia’s SLI, both valid approaches to the multi-GPU idea, but neither can really brag about solving their issues properly.
When these technologies made their debuts in the mid-2000s, many were excited about the implicit promises they made. However, the lukewarm start both of these companies offered for their respective multi-GPU solution would, unfortunately, continue throughout their entire lifespans.
Crossfire was officially put to sleep in 2017 and while SLI still technically has a pulse, it’s been replaced by NVLink or simply common sense, depending on who you ask. Even though Nvidia’s SLI upgrade does technically offer a massive improvement, one could argue that previous generations soured the tech world on the idea.