looking at buying a graphics cards. I have noticed that different manufactures of these units have numbers that are used by other companies...for example : geforce gtx 1050 and a zotac geforce 1050. Two different companies but the same numbers. I was under the impression that the number might be the model, AKA the higher the number the better performance as a card. Also they have a ddr5 gb rating which is another point of confusion for the uneducated person I am. If anyone has lant insight then please enlighten me.