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In House Review - Samsung 840 Pro Series 256GB SSD

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In House Review - Samsung 840 Pro Series 256GB SSD

Postby Ian on Tue Feb 05, 2013 2:57 pm

Today, CDRLabs brings you a review of Samsung's new SSD 840 Pro Series solid state drive. Designed and built completely in-house, the SSD 840 Pro is powered by Samsung's own triple-core MDX controller and features a SATA 6GB/s interface, specially-engineered wear-leveling and garbage collection algorithms and AES 256-bit full disk encryption. The drive also packs up to 512MB of cache and is equipped with Samsung's Toggle DDR2 NAND flash memory to deliver up to 540MB/s read and 520MB/s write speeds.

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Samsung SSD 840 Pro Series 256GB Solid State Drive
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Re: In House Review - Samsung 840 Pro Series 256GB SSD

Postby redk9258 on Wed Feb 06, 2013 9:23 pm

I'll take this off your hands when you are done testing it. LOL
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Re: In House Review - Samsung 840 Pro Series 256GB SSD

Postby Scour on Sun Feb 10, 2013 4:05 pm

Tbh, nobody will realize the speed-difference of the 840 Pro and cheaper SSDs in real life :)
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Re: In House Review - Samsung 840 Pro Series 256GB SSD

Postby Ian on Fri Apr 26, 2013 12:10 pm

Finally got around to posting some benchmarks with the drive in RAID.

http://www.cdrlabs.com/Reviews/samsung- ... -raid.html
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Re: In House Review - Samsung 840 Pro Series 256GB SSD

Postby Scour on Fri Apr 26, 2013 1:40 pm

The sequential speed is not that bad ;)

But the 4K-speed seems not really better than with one drive.

Feeling any difference between Raid and None-Raid?
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Re: In House Review - Samsung 840 Pro Series 256GB SSD

Postby Ian on Fri Apr 26, 2013 3:42 pm

Feel a difference? It's kinda like going 100MPH in a car and then 200MPH in another. You just know you're going really, really fast.

I'm not sure what the deal was with the 4K speed being lower with RAID. It may have something to do with the extra latency that RAID adds. You only see this at low queue depths though.
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Re: In House Review - Samsung 840 Pro Series 256GB SSD

Postby Scour on Fri Apr 26, 2013 8:34 pm

I think in a Home-PC you never will have that high queue-deep

Is it only a test or do you use Raid 0 all day?
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Re: In House Review - Samsung 840 Pro Series 256GB SSD

Postby Ian on Fri Apr 26, 2013 9:06 pm

Yeah, during everyday use, the queue depth rarely goes above 3 or 4. Most people will never take advantage of an SSD's maximum random read/write capabilities.

It was just a test. I just wanted to see what sort of performance I could get out of two of them. A single SSD is fast enough for me.
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Re: In House Review - Samsung 840 Pro Series 256GB SSD

Postby Scour on Fri Apr 26, 2013 9:51 pm

Ian wrote: A single SSD is fast enough for me.


Same here 8)

Do you still own 2 M5P?
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Re: In House Review - Samsung 840 Pro Series 256GB SSD

Postby Ian on Sat Apr 27, 2013 10:46 am

Scour wrote:Do you still own 2 M5P?


Yeah, I actually have three at the moment. Two of the original M5P's and an M5Pro Xtreme. I'm using one of the M5P's in my Windows 8 box at work. I was going to put the other in my laptop but picked up a 512GB 840 Pro instead.
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Re: In House Review - Samsung 840 Pro Series 256GB SSD

Postby Scour on Sat Apr 27, 2013 8:29 pm

I´m a little bit confused of Plextor M5-series

Have a M5S 256GB FW1.03 in my Intel-Laptop with XP and Crystaldiskinfo only shows NAND-write. In a PC from a friednd with AMD 970-chipset and MS-AHCI his M5S 128GB 1.03 it shows Host Read/Write and NAND-write

What CDI shows on your Plextors?
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Re: In House Review - Samsung 840 Pro Series 256GB SSD

Postby Ian on Sun Apr 28, 2013 11:36 am

I'll have to get back to you on that. Maybe you guys are using different versions of CDI? Might be something with the different chipsets too. I really don't know.
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Re: In House Review - Samsung 840 Pro Series 256GB SSD

Postby Scour on Sun Apr 28, 2013 1:42 pm

Tried the same Version(s) on both.

Could be a driver-prob, I remember on my AMD-System and XP it was impossible to read SMART on XP with AHCI
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