I'm running DCS at 4K on a 1070, 32G DDR and a 3700X.
I get around 45-50fps at High settings. I've had my card since 2016 and it runs all my sims pretty well.
I'm in the same situation as yourself and I'm tempted to get a similar card, but may just wait for the RTX 3000 series. At least, the last gen RTX will drop significantly in price by then
Thanks
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