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 The SSD Thread V7, SLC, MLC, TLC, QLC, PLC, and 3D XPoint

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antaras
post Aug 11 2021, 12:22 PM

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Got myself a 2TB XLR8 CS3040 a few days back. Cost around RM996 after some 8.8 discount. Not much of gen4 speed but still better than gen3. Also the price difference.
antaras
post Aug 11 2021, 03:27 PM

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QUOTE(x-1o8-x @ Aug 11 2021, 02:54 PM)
how's the performance? what's the warranty also for it?
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user posted image
user posted image

This are the tests I did earlier. The one with the higher numbers is with the "NVMe SSD" selected in the settings tab. While the lower numbers is with the "default" selected.

I'm not sure which one to select for this test. First time doing these kinda tests.

Throwing in my other drives in here just for comparison.

user posted image
Adata SX8200 Pro

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Samsung 850 EVO Sata3

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WD Black (mechanical)
antaras
post Aug 22 2021, 12:03 PM

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QUOTE(YoungMan @ Aug 22 2021, 10:07 AM)
What brand and model?
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He cannot understand this question. Stop asking him this already.
antaras
post Aug 23 2021, 02:08 PM

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QUOTE(BOTAK_WAI @ Aug 23 2021, 03:23 AM)
china forum reported that new batch WD SN550 1TB & 500GB write speed drop tremendously after the cache was exhausted

https://bbs.nga.cn/read.php?tid=28144959

https://bbs.nga.cn/read.php?tid=28181945
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but under what circumstances will the cache be filled? Any daily tasks that we can relate to?
antaras
post Aug 23 2021, 03:06 PM

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QUOTE(BOTAK_WAI @ Aug 23 2021, 02:13 PM)
copy big file
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as in copying one big file or multiple smaller files in one go?
antaras
post Aug 23 2021, 05:08 PM

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QUOTE(BOTAK_WAI @ Aug 23 2021, 03:40 PM)
both…multiple small file memang slow because rely on its 4k write speed.

to explain it in simpler way:

old sn550 1tb if i copy 40gb file into it, the 1st 12GB will be written in full speed, then after that will drop to 800MB/s.

new sn550 1tb if i copy 40gb file into it, the 1st 12GB will be written in full speed, then after that will drop to 400MB/s.
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holy crap! half the speed! Thanks for explaining.
antaras
post Jun 25 2023, 08:23 PM

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30TB ssd at RM118. lol... Free type C cable summore. lol...

 

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