You should do your research before commenting others ' question . First , 750 evo is actually release this year , meaning 850 evo is older , 750 evo is considered to be the cheaper , eco version of 850 evo while having the old price of 850 evo . Yes you heard right , 850 evo used to be cheaper last year , the price went up . Samsung realized their 750 evo sales won ' t catch on as 850 evo used to be cheaper , having the same price as other brands ' slc ssd with mlc ' s performance . However , simce 850 evo has its price increased , it now usually has the same price with other brand ' s mlc ssd with the same performance , thus , making 850 evo not a very good deal any more . However , the popularity of 850 evo during its low price peroid had made Samsung the king of ssd , people comparing any ssd they see with 850 evo some even refuse to say that there have been good mlc ssd deal that is better than 850 evo . The same thing happen to PNY , PNY slc is comparable to 750 evo and mlc is comparable to 850 evo . Consumer wise , you would not see big differences buying ssd unless you are trying to get one of those enthusiastic NVME ssd .