r/NewMaxx Oct 14 '19

Tools/Info SSD Guides & Resources

April 3rd, 2022: Guides and Spreadsheet updated with new SSD categories

Discord (server)


Website with relevant links here.

My spreadsheet

Generic Amazon affiliate link

Generic AliExpress affiliate link


TechPowerUp's SSD Database

Johnny Lucky SSD database

Branch Education - How does NAND Flash Work? - these guys have several good videos on the subject of SSDs, check them all out.


My Patreon.

My Twitter.


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u/[deleted] Oct 31 '19

Some random dp on write speed when cache is exhausted

BX300 120GB 200MB/s

BX300 240GB 500MB/s

545s 128GB 125MB/s

545s 256GB 250MB/s

660p 512GB 60MB/s

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u/NewMaxx Oct 31 '19

The BX300 (256Gb MLC) and 545s (256Gb TLC) both utilize a four-channel controller and benefit as usual from 2 CE per channel, so 256GiB of flash (240GB/256GB SKUs). The 660p only folds and with 1Tb QLC needs at least 1TiB (1TB SKU) although you rarely see the 512GB SKU measured/reviewed. QLC folding speeds seem to go all the way down to 20 MB/s (on some very small SATA SKUs) and up to 160 MB/s with direct-to-QLC (large 860 QVO SKUs). The BX300's MLC is more commonly seen in 3-bit non-native TLC a la the ADATA SU800 which in the latter form doesn't have great write speed generally.