July 2, 201511 yr I'm having to build a new unRAID server and it makes sense for me to upgrade the cache drive from my old IDE drive to at least a SATA. I really like the thought of having my cache drive be a solid-state drive, but while looking on newegg I couldn't believe how odd the range in prices was. There is a 128 Gb Kingston for $56.00 and a 128 Gb Crucial for $257.00. That is a 4.5x price difference? In my case I really only use the cache drive for a few apps, which has to extract files and then move them to the array. I'm sure the SSD would help speed this up, but it isn't like I'm keeping any critical data on the cache so having what is the most reliable isn't a huge concern for me. Also, the speed difference between the two SSD drives probably isn't a huge concern either. The more expensive one I'm sure is faster, but don't forget I'm coming from IDE. So my question is, is there something I'm missing that should make me want the much more expensive SSD? Wouldn't the cheaper SSD basically work just fine?
July 2, 201511 yr Different technologies, different reliability. Also, some older SSDs might still be available at a higher price than newer ones. The Samsung 850 Pro is a good, reliable, proven 128GB SSD, for only $108. http://www.newegg.com/Product/Product.aspx?Item=9SIA12K2KH9230
July 2, 201511 yr I think that high price must just be because it is no longer manufactured. I think I found the one you are talking about and it is also expensive on Amazon, but Newegg and Amazon are both listing it from a different seller than themselves. You can probably get about 4x capacity for that price these days.
July 2, 201511 yr Author Different technologies, different reliability. Also, some older SSDs might still be available at a higher price than newer ones. The Samsung 850 Pro is a good, reliable, proven 128GB SSD, for only $108. http://www.newegg.com/Product/Product.aspx?Item=9SIA12K2KH9230 Gotcha. And check this out. For a whopping 2 dollars more you can double capacity. Weird. http://www.newegg.com/Product/Product.aspx?Item=N82E16820147372
July 2, 201511 yr Author Different technologies, different reliability. Also, some older SSDs might still be available at a higher price than newer ones. The Samsung 850 Pro is a good, reliable, proven 128GB SSD, for only $108. http://www.newegg.com/Product/Product.aspx?Item=9SIA12K2KH9230 Gotcha. And check this out. For a whopping 2 dollars more you can double capacity. Weird. http://www.newegg.com/Product/Product.aspx?Item=N82E16820147372 Oh wait. One appears to be a "Pro" and the other is not. I guess there is a difference.
July 2, 201511 yr Different technologies, different reliability. Also, some older SSDs might still be available at a higher price than newer ones. The Samsung 850 Pro is a good, reliable, proven 128GB SSD, for only $108. http://www.newegg.com/Product/Product.aspx?Item=9SIA12K2KH9230 Gotcha. And check this out. For a whopping 2 dollars more you can double capacity. Weird. http://www.newegg.com/Product/Product.aspx?Item=N82E16820147372 Oh wait. One appears to be a "Pro" and the other is not. I guess there is a difference. You probably wont see any difference between the Pro and the Evo. I would buy the Evo with twice the space for the same price.
July 2, 201511 yr Author You probably wont see any difference between the Pro and the Evo. I would buy the Evo with twice the space for the same price. Super. Thanks.
July 2, 201511 yr Samsung 840/850 EVO series SSDs for FTW. Don't bother paying the premium for the "Pro" versions as benchmarks show they are no faster and in come cases slower than their non-pro equivalent.
July 2, 201511 yr Speed isn't the key differentiator for the Pro vs EVO versions of the Samsung drives. The difference is endurance => the Pro's are rated for twice the endurance of the EVO's ... 150TB of writes vs. 75TB of writes for the EVO (in the smaller sizes you're looking at -- twice that for the 500GB and larger units). This is also reflected in the warranties -- the Pro is warranted for 10 years vs. a 5 year warranty for the EVO. Given the difference in price, the EVO is definitely what I'd buy ... for the difference in price you can simply buy another one in a few years if needed -- and the capacity will undoubtedly be significantly larger.
July 5, 201510 yr Given the recent SNAFU with performance drops on the 840 line, I'm not sure I'd trust Samsung or indeed TLC flash at all. I had the bad performance issue with the SSD in my laptop (the OEM mSATA version of the 840 Evo), which didn't get a firmware update and probably will never. I ended up swapping it out for a Sandisk X110 which turns out is quicker than the Samsung anyway...
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