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The symptoms i get are a dizzy feeling, like there is motion on the screen and it feels no where near as sharp. Besides the eye strain symptoms the general image quality is worse as there is like a layer of blurriness/lack of sharpness on all images,videos etc. The Quadro K4200 produces a much better image than this new A4000 which is just shocking. Even the BIOS screen has this blurry effect on the boot logo and menu. There are some other A4000 revision BIOS's that people have uploaded to Techpowerup and im tempted to try one of those to see if maybe a BIOS update can fix it.
I was reading that GPU's after a certain generation started to use a form of memory compression and there are people in the comments of this video talking about when they switched graphics card they noticed a loss of image quality. I think maybe a bad memory compression algorithm and some form of dithering is enabled at the hardware level of the A4000 to somewhat cheat in order to gain easy performance. https://www.youtube.com/watch?v=R1IGWsllYEo
I wish there was a modern GPU that didnt resort to this trickery for extra performance, i plan on buying a RTX 4000 from Amazon which is the Turing based version of the A4000, its slightly weaker but should be plenty powerful enough, if i get eyestrain i will just return it.