Are these speeds normal for a Samsung 840 250gb?

Chief7285 · Jun 4, 2013

I just got a new Samsung 840 250gb SSD and I am kinda confused at these speeds.

I have it plugged into a SATA III / 6gbs port running ACHI mode.

It has nothing but the OS on it.

AS SSD Benchmark 1.7.4739.38088
------------------------------
Name: Samsung SSD 840 Series
Firmware: DXT08B0Q
Controller: storahci
Offset: 359424 K - OK
Size: 232.88 GB
Date: 6/4/2013 5:49:38 PM
------------------------------
Sequential:
------------------------------
Read: 499.24 MB/s
Write: 75.21 MB/s
------------------------------
4K:
------------------------------
Read: 22.22 MB/s
Write: 48.44 MB/s
------------------------------
4K-64Threads:
------------------------------
Read: 230.57 MB/s
Write: 162.31 MB/s
------------------------------
Access Times:
------------------------------
Read: 0.086 ms
Write: 0.069 ms
------------------------------
Score:
------------------------------
Read: 303
Write: 218
Total: 662
------------------------------

I don't know but the speeds seem kinda slow to me. If anyone can provide some information on why or any advice would help.

maestro0428 · Jun 4, 2013

Those speeds do look low, especially the write speeds. Did you use the Samsung Magician software that came with it? It should look for bottlenecks and show you the correct settings. What OS are you using?

Chief7285 · Jun 4, 2013

maestro0428 :

No I haven't touched the Magician software but I will now, and I am on Windows 8

maestro0428 · Jun 4, 2013

Do that and let us know how it goes.

Chief7285 · Jun 4, 2013

maestro0428 :

So I downloaded magician, Set max performance and restarted my PC.

Reads are now 535mbs,
writes are now 235mbs
Random Read 46108 IOPS
Random Write 43518 IOPS

These are from using Magician Benchmark.

So Seems like speeds are normal now.

ddpruitt · Jun 4, 2013

Check the AHCI driver that windows is using. Using the wrong driver is known to cause issues.

RetiredChief · Jun 4, 2013

Not a AMD user, but looks like the driver is correct for AMD chipset - "storahci"
Just a comment, Most benchmarks are performed on an Intel platform using the latest Intel drive which is better optimized for SSDs.
BUT then benchmarks are not that valuable, yes they will show a difference between various SSD, But those difference normally DO NOT translate into a noticeable difference in real life day-2-day usage, by humans, not sure about off planet - LOL
ENJOY.

swifty_morgan · Jun 4, 2013

there are differences between the pro and non pro versions. make sure you look at the right benchmarks.

maestro0428 · Jun 4, 2013

Looks like you are getting the right speeds now. Much faster and for the non "Pro" version, perfectly acceptable numbers.

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Are these speeds normal for a Samsung 840 250gb?

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