I guess that it doesn't matter how good your video card is if your cpu isn't up to the task. You may have detail and everything turned up to the max and everything will run smooth as silk with a few planes on the screen but on a very formation dense mission that video card can't help you even if it's DX13 and has supertessticleation II enabled. Same goes for RAM, you need your parts to be level. My guess of course but it isn't rocket science really.
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