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Author Topic: speed rating of compact flash cards  (Read 2429 times)

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Offline chrisNova777

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speed rating of compact flash cards
« on: December 05, 2018, 07:15:51 AM »
perfect for pairing with IDE RAID cards for vintage PC/MAC
buy them in pairs + RAID stripe them
for safety dont go larger than 32GB as some raid cards from the 90s never
used disks that large (they didnt exist at the time)
8gb or 16gb is perfect,
2 x 8 = 16gb striped RAID drive
or 2 x 16 = 32gb striped RAID drive
plenty of space for a 90s operating system

lexar professional 300x (45MB/s) 8gb UDMA
lexar professional 400x (60MB/s) 8gb UDMA
lexar professional 600x (90MB/s) 8gb UDMA
lexar professional 600x (90MB/s) 32gb UDMA
lexar professional 800x (120MB/s) 16gb
lexar professional 800x (120MB/s) 32gb
lexar professional 1000x(150MB/s) 32gb UDMA 7
lexar professional 1066x(150MB/s)
lexar professional 1066x (160MB/s) 256gb UDMA 7

match up guide: port vs cf rating

ATA66 :: 400x / 500x / 600x
ATA100 :: 600x / 800x
ATA133 :: 800x / 1000x

compactFlash cards that cant do UDMA are still usefull to be used in older vintage systems
that have less speed, ie: ISA based 286/386/486 systems cant do much more than 8Mb/s anyways so PIO mode 2 is the fastest they can operate anyway