![]() If that sounds the way a new car warranty works-bingo! No person in their right mind would buy a new car thinking that would cease working in five years or 50,000 miles, but that’s a common warranty. A time period, most often three or five years is also enforced. The TBW ratings represent the amount of writes vendors determine they can guarantee and still make a profit at the price they charge. They’re generally a deliberate underestimate of monumental proportions. The thing about TBW ratings is that they’re not particularly accurate. You might not realize that a ton of temporary files are written then erased on the SSD, including the memeory swap that’s the issue with the new M1s Typically the rating runs around 600TBW for every 1TB of capacity for end-user drives. Samsung’s 980 Pro is a typical end-user SSD, “rated” for 600TBW for every 1TB of capacity.Īs for vendor ratings, by far the most common stat used for solid state storage is TBW, or the number of TeraBytes that may be written over the life of the drive.
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