I purchased two Ultrasharp U2718Q 4K monitors to be used on a single system, and beside each other the color and brightness is completely different. My first monitor represents true whites and good color representation, however the second even after a calibration is wildly out. At 100% brightness it barely comes close to the other monitor running at 75%
Both are running off a single Nvidia 1080Ti through two separate Display Ports.
Here's a side-by-side photo. I'll let you be the judge of which one is out of whack.
Thanks for posting.
Apologies for the monitors not looking the same, however they both are within specs for this model. If you purchased directly from Dell within thirty days, you may return one or both. Please contact Customer Care or initiate an online return. http://dell.to/2yNDOSB
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If this is considered within spec I would hate to see what an out-of-spec monitor looks like. I will be returning for an exchange and hope for a better copy.