Question VR headsets: would these devices have been a good match for crossfire/SLI

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From what I've read VR headsets render a slightly different view of the same scene for both eyes, so from that perspective, wouldn't VR headsets have been an ideal application for crossfire/SLI?
 
No.

While a potato card can't run them, a decent GPU can. The amount of power two cards would need, cabling, heat, etc. One good card makes more sense. With the comparatively low resolution and refresh rate to a monitor, it simply makes no sense to run two cards for VR, if it was even still a thing.
 
From what I've read VR headsets render a slightly different view of the same scene for both eyes, so from that perspective, wouldn't VR headsets have been an ideal application for crossfire/SLI?
No, mot any more since more powerful GPUs are available. Crossfire/SLI attempt to make 2 GPUs work as one so it wouldn't do any good for 2 eyes.