did i got a slow SSD?

dickson32 · Apr 18, 2017

i just bought a used ssd on craigslist
its a Micron RealSSDc400 256 GB 2.5 Sata SSD

i used CrystalDIskMark and here are the results

274 232
96 95
256 220
21 47

(will be posting the actual picture in a minute)

F3Ature1 · Apr 18, 2017

Without knowing your PC hardware, it's very difficult to tell, post your PC model.

Tech_TTT · Apr 18, 2017

yes it is a slow one . those numbers are right

dickson32 · Apr 18, 2017

Tech_TTT :

how slow is it compared to the other SSDs? is it the slowest? did i just got screwed?

dickson32 · Apr 18, 2017

F3Ature1 :

FX 6300
8 GB DDR3 RAM
SATA 2 Slot
SATA 3 Cable

Tech_TTT · Apr 18, 2017

Half speed in writing , and IOPS is also low, half speed of modern drives .

dickson32 · Apr 18, 2017

Tech_TTT :

that bad?

Tech_TTT · Apr 18, 2017

dickson32 :

Modern SSD are seq . Read/Write >500MB , and IOPS Read/Write >80,000

your SSD is

seq read 500MB/s , seq Write 260MB/s
IOPS read 45,000 IOPS write 50,000

and this is paper specs , it gets lower in real testing.

one more thing , did you connect it to SATA3 or SATA 2 ? because the seq Read speed looks fishy

dickson32 · Apr 18, 2017

Tech_TTT :

Im using SATA 3 Cable but its connected to a SATA 2 Port because my mobo only supports SATA 2
how much of a difference would it be?

Tech_TTT · Apr 18, 2017

dickson32 :

Tech_TTT :

Im using SATA 3 Cable but its connected to a SATA 2 Port because my mobo only supports SATA 2
how much of a difference would it be?

SATA2 Max speed = 300MB/s , Sata3=600MB/s

That explains why the read speed is not 500 ...

dickson32 · Apr 18, 2017

Tech_TTT :

dickson32 :

SATA2 Max speed = 300MB/s , Sata3=600MB/s

That explains why the read speed is not 500 ...

ohhh... now i feel stupid so the 3 GBPS of sata actually translates to 300 MBPS and the SATA 3 6 GBPS to 600 mbps?

benchmarking aside. for real time use would it really make a big difference?

Tech_TTT · Apr 18, 2017

dickson32 :

Tech_TTT :

ohhh... now i feel stupid so the 3 GBPS of sata actually translates to 300 MBPS and the SATA 3 6 GBPS to 600 mbps?

benchmarking aside. for real time use would it really make a big difference?

for accessing Random small files (IOPS) it will be slower , but is still faster than HD dont worry much.

next time when you buy look at the IOPS speed it is very very important.

we use IOPS more than Sequential when we run games and programs ... sequential is for big files only

enjoy your SSD and dont worry much

dickson32 · Apr 18, 2017

Tech_TTT :

dickson32 :

for accessing Random small files (IOPS) it will be slower , but is still faster than HD dont worry much.

next time when you buy look at the IOPS speed it is very very important.

we use IOPS more than Sequential when we run games and programs ... sequential is for big files only

enjoy your SSD and dont worry much

thanks man. that is really some good solid info.
but i have one last question if you dont mind.
do i need a SATA 3 port for my SSD?

Tech_TTT · Apr 18, 2017

dickson32 :

Tech_TTT :

thanks man. that is really some good solid info.
but i have one last question if you dont mind.
do i need a SATA 3 port for my SSD?

your SSD will work on SATA2 it is backward compatible . but will run slower (Read speed)

If you want Sata3 , you can buy a Sata 3 card and use it , or get a used motherboard with Sata3 on it ...

but its not a big deal your PC is very old and not worth spending on it much , keep the money for the next new PC better.

helpstar · Apr 18, 2017

Your SSD will be fine in real life. But have a look at optimizations for your operating system.

Which operating system are you using?

Which motherboard are you using? AHCI or IDE sata mode enabled in BIOS?

dickson32 · Apr 18, 2017

helpstar :

Windows 7
sorry for the late reply. im using a ASROCK 960GC-GS FX
AHCI is enabled

helpstar · Apr 18, 2017

here is a good link you can trust:
https://www.howtogeek.com/256859/dont-waste-time-optimizing-your-ssd-windows-knows-what-its-doing/

did i got a slow SSD?

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