“What is the sustained write speed? If I copy 1TB of data to it all at once, what will the write speed be at the end?”
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Hello, thanks for getting in touch, We would like to inform you that Sequential Write speeds for this SSD is up to 4,100 MB/s. But please note that, The Crucial P3 utilizes an SLC-mode cache designed for quick write operations and optimal short burst performance. However, when this cache is full, the drive switches to writing directly to the QLC NAND, which operates at a slower pace. Hence, if you transfer large data files continuously you find a drop in the write speeds. Considering frequent large file transfers, a drive with a TLC NAND, such as our Crucial T500, may be more suitable. These models are equipped to handle sustained caching demands more efficiently, ensuring consistent performance. If you need any more information or support, please contact us back through the link below. https://www.crucial.com/support/contact - The Crucial Team
Sorry, there was a problem. Please try again later.I could not get it to sustain a large write (256GB VMDK via an external USB2 drive). It is QLC, so it buffers until it can shift it. Sawtooth pattern when i graphed it. I would rate the average write speed on par with a Crucial BX SATA SSD. Read speeds are adequate.
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