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Samsung 840 Evo 120gb getting 1TB read speed.

Zyre
By Zyre
in Storage Devices
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Posted

Didn't Linus' ridiclous Raid 0 array in his custom rig only have like 1.2gb read speeds? (and that was like 8 Corsair SSDs or something...)

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Didn't Linus' ridiclous Raid 0 array in his custom rig only have like 1.2tb read speeds? (and that was like 8 Corsair SSDs or something...)

Only 8, *only ;)* but, it wouldn't have been 1.2tb...

Specs: CPU: AMD FX 6300 Motherboard: Gigabyte 970A DS3P RAM: HyperX Fury 16GB 1866MHz GPU: MSI R9 270 OC edition Case: Sharkoon VS3-S SSD: Samsung 840 EVO 120GB HDD: 1TB Caviar Blue PSU: Corsair CX500W

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Only 8, *only ;)* but, it wouldn't have been 1.2tb...

meant gb

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He's not. He send me a picture from ''My Computer'' that shows only 1 SSD, plus he put it in his laptop.

Then this result is impossible even in theory. 6 Gb/s is less than 800 MB/s. He's supposedly getting 1100.

However, please note that this result perfectly matches a RAID 0. Such an array shows as a single disk in my computer, that is the whole point of RAID.

 

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He ran Crystal Disk Mark: 

 

rp3Ry3Q.jpg

 

Am I starting to lose this discussion or...

 

For those asking if it's really a single SSD:

 

zWw4C1X.jpg

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That program seems super fishy. I don't believe that pic at all. Tell him to use the program everyone else uses. I don't remember the name of it though.

I believe that is Samsung's disk utility.

 

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That program seems super fishy. I don't believe that pic at all. Tell him to use the program everyone else uses. I don't remember the name of it though. 

Wake up, it's Samsung rapid mode which uses the RAM as caching for the SSD.

SamsungRapid.jpg

If you like I can enable it and post a bench if you mind.

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I believe that is Samsung's disk utility.

Correct, I shouldn't come up with the name.

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Wake up, it's Samsung rapid mode which uses the RAM as caching for the SSD.

SamsungRapid.jpg

If you like I can enable it and post a bench if you mind.

Oh yeah, that thing... Complete bullshit nonetheless.

 

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It might be Rapid mode, but how does it explain that he's getting 3TB write?, plus he's on 3GB/SATA, not 6GB port.

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Wake up, it's Samsung rapid mode which uses the RAM as caching for the SSD.

Lmao no need to be rude. It's not like I pay any attention to Samsung software. Sorry that I don't know every hard drive benchmarking tool out there...

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It might be Rapid mode, but how does it explain that he's getting 3TB write?, plus he's on 3GB/SATA, not 6GB port.

From the little that I've read, it caches with RAM so I assume the benchmark is testing the RAM since it's cached with it. Not entirely sure how it works. 

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i thought max read was 560 or something like that... if it was possible i would give maximum of 700. ask him if he lined his SATA cables in cocaine

I'm sure that drugs would help. But otherwise, no, that's pretty much impossible.

50Cent sweg.

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he is probably using the ram caching feature on that drive that uses your ram for a cache

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and how the hell  is he using 29 gb for windows and his programs

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It might be Rapid mode, but how does it explain that he's getting 3TB write?, plus he's on 3GB/SATA, not 6GB port.

I got 8GB/s

7ucgdLh.png

840 pro is my main drive and the EVO 1TB is my storage drive which I enabled rapid mode for. You can only enable it for one drive though.

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It might be Rapid mode, but how does it explain that he's getting 3TB write?, plus he's on 3GB/SATA, not 6GB port.

 

That's not 3 TBps write..  3000 MBps =  3 GBps.

 

And it's that high because it's using what's basically a RAMdisk to temporarily cache data instead of writing it to the drive.. The 3 Gbps SATA port (little "b", not big "B") isn't a factor in that benchmark because it isn't relying on the SSD's bandwidth, it's only relying on the bandwidth available to the RAMdisk.

 

 

In real world uses, Samsung's RAPID mode doesn't really improve performance by that much. While there are some scenarios where it can help, most of the time it's just a cheap way to trick a benchmarking tool to think that the drive is faster than it is..

I've used my 840 EVO with RAPID both enabled and disabled, and there hasn't been any noticeable difference in day-to-day use, even if it does crush benchmarks when RAPID is enabled.

i7 not perfectly stable at 4.4.. #firstworldproblems

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thats one of the features of the samsung drive but the problem is that once your system loses power your on the train to data loss and corruption vill

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Oh so that's how RAM caching works? Seems I might be wrong after all.

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Oh so that's how RAM caching works? Seems I might be wrong after all.

yea it is like ssd caching except with faster volatile ram

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