SSD speeds - do these look right??

StevieP · 16 Jun 2012 at 18:12

I've had my 128GB Crucial M4 for a while now and have always been happy enough with it's performance but recentlly I'v bought a 256GB Samsung 830 and slotted it into my Dell laptop so I thought I'd compare the speeds using CrystalDiskMark and got the following results....

Crucial M4 (128GB)

Samsung 830 (256GB)

Since I have no clue what any of these numbers mean, can anyone tell me if they stack up OK?? (especially since the Samsung write speeds are double those of the M4!?!?!?)

Thanks guys.....

wazza300 · 16 Jun 2012 at 18:19

they look fine,i always use atto to benchmark ssd's/hdd's i can understand it better,that test tests for compressionable data ect thats why it looks worse results but it is correct

StevieP · 16 Jun 2012 at 18:28

Don't get me wrong, they both seem to fly, it's just the huge difference on the sequential write speed that got me thinking that maybe I'd done something wron during install etc!?!?! :confused:

Also, the test seemed to take maybe 8-10 minutes on the M4 but only 3-4 on the Samsung???

wazza300 · 16 Jun 2012 at 18:34

Post some atto results and see what it says

Surveyor · 16 Jun 2012 at 19:01

StevieP said:
Don't get me wrong, they both seem to fly, it's just the huge difference on the sequential write speed that got me thinking that maybe I'd done something wron during install etc!?!?!

There is a big difference.

256GB Samsung 830:
- Sequential Read: 520MB/s
- Sequential Write: 400MB/s

128GB Crucial M4:
- Sequential Read (up to): 550MB/sec (SATA 6Gb/s)
- Sequential Write (up to): 220MB/sec (SATA 6Gb/s)

StevieP · 16 Jun 2012 at 19:36

Here are the Atto benchmark results (with all settings left as-is)

Crucial M4

Samsung 830

Surveyor said:
There is a big difference.

256GB Samsung 830:
- Sequential Read: 520MB/s
- Sequential Write: 400MB/s

128GB Crucial M4:
- Sequential Read (up to): 550MB/sec (SATA 6Gb/s)
- Sequential Write (up to): 220MB/sec (SATA 6Gb/s)

Fair point! I guess I didn't realise the numbers were quite that different!

wazza300 · 16 Jun 2012 at 19:45

the samsung looks ok on atto,does look lower read figures on crystaldisk though,idk why that is

Hagar · 16 Jun 2012 at 19:46

Sandisk extreme 256 for comparison on AMD chipset

Some readings are a bit lower, some a bit higher. Possibly the chipset (sata III) Seems very quick though.

StevieP · 16 Jun 2012 at 20:24

Hey-ho!

As long as no-one is saying things are far too slow! (ie. I've done something wrong with the install and setup!)

Thanks for the reassurance guys!

dww · 17 Jun 2012 at 13:02

I believe your motherboard has both Intel and Marvell SATA-III ports; which are you using? The Intel I assume as you're getting good speeds from the Samsung SSD.