“IS THIS A 4K ULTRA HIGH DEF CARD. I HAD MY COMPUTER BUILT FOR ME. I HAD A GTX 750 1 ALREADY BUT I,M NOT GETTING THE RESDOLUTION IT,S SUPPOSE TO BEIT,S SUPPOSE TO BE 3840X2160 RECOMMENDED MINES SAYS WARNING 3360X2520 AND THEY IS NOT SUCH THING ON MY PC”