Which SSD should I get?

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May 3, 2014
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I'm looking for a fast SSD but I don't know whether it's worth spending an extra £15 to get the Samsung 840 EVO 250GB over the Kingston Technology V300 SATA 3 and Crucial CT240M500SSD1 240GB M500 SATA. Is it much faster to spend the extra £15?
If not which is better between the Kingston and CrucialM500 SSD?

Samsung 840 EVO: http://www.amazon.co.uk/gp/offer-listing/B00E391OX6/sr=8-2/qid=1399244326/ref=olp_tab_all?ie=UTF8&colid=&coliid=&me=&qid=1399244326&seller=&sr=8-2

Kingston Technology V300 SATA 3: http://www.amazon.co.uk/Kingston-Technology-240GB-Solid-2-5-inch/dp/B00A1ZTZNM

CruciaM500 SATA: http://www.amazon.co.uk/gp/offer-listing/B00BQ8RM1A/ref=sr_1_4_olp?ie=UTF8&qid=1399273716&sr=8-4&keywords=ssd&condition=new
 
Solution
JohnnyLucky
I have some bad news. About 6 months ago Kingston changed the brand and type of flash memory from Toshiba to Micron. The Micron flash memory is slower than the Toshiba memory. Kingston switched the flash memory to keep costs down. In addition, a corresponding firmware update (505) developed glitches. There have been several firmware updates since then. Kingston was slow to admit they changed flash memory which led to accusations of Kingston using bait and switch tactics.

To be fair I should point out that the practice of changing components is nothing new. It usually happens with low budget, entry level models. For example, PNY uses several types of flash memory in their Optima series ssd's. The difference between Kingston and PNY is...
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sorry bout that , meant this one ,
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The Kingston is the slowest performer on average, look at the overall comparison.
It is also based on SandForce NAND flash, which is pretty much generation 1 of SSDs with a limited lifespan in comparison to the modern TLC and MLC NAND used by Samsung and Crucial respectively.
 
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I have some bad news. About 6 months ago Kingston changed the brand and type of flash memory from Toshiba to Micron. The Micron flash memory is slower than the Toshiba memory. Kingston switched the flash memory to keep costs down. In addition, a corresponding firmware update (505) developed glitches. There have been several firmware updates since then. Kingston was slow to admit they changed flash memory which led to accusations of Kingston using bait and switch tactics.

To be fair I should point out that the practice of changing components is nothing new. It usually happens with low budget, entry level models. For example, PNY uses several types of flash memory in their Optima series ssd's. The difference between Kingston and PNY is that PNY published the fact in their specifications while Kingston did not. Veteran posters might remember what happened when OCZ changed the flash memory in one of their models. It also happens with DDR3 memory modules. No telling which chips you're liable to find when you remove those fancy heats spreaders that gamers and enthusiasts like. Veterans who have been here for a few years might also remember what happened when companies changed panels in monitors and components in power supplies. Companies typically have a clause stating that specifications and components are subject to change at any time for any reason.

I normally recommend Samsung. The Samsung ssd's perform very well and have a proven track record.

I maintain the ssd database listed in a sticky at the top of this forum section. Here is the link:

http://www.johnnylucky.org/data-storage/ssd-database.html

I have just about all of the consumer oriented ssd's listed in the database. Scroll down to the brands and models you are interested in and follow the links to the technical reviews.

BTW - You mentioned wanting a fast ssd. The problem is that most posters usually mean they want an ssd that is capable of reproducing published synthetic benchmark results which do not always equate with actual performance. If I go strictly by the typical synthetic benchmarks, then the Samsung 840 Pro and 840 EVO with their new "rapid mode" technology are the fastest standard SATA 3 6Gb/s ssd's for desktop computers. I have a Samsung 840 EVO 256GB ssd with rapid mode enabled in my personal pc. Here are my results using the Samsung SSD magician to measure the performance:

Sequential Read: 1,190 MB/s
Sequential Write: 1,041 MB/s
Random Read: 101,229 IOPS
Random Write: 132,953 IOPS

Essentially Samsung uses 1GB of DDR3 system memory as a cache. It reminds me a lot of the old "ramdisks" that use system memory to create a virtual disk. It might be a problem for systems with just 4GB of system memory as that would only leave 3GB for the operating system and the rest of the pc. Samsung has already announced that they will eventually release versions that could use additional system memory. It appears to be good new for consumers who installed more memory than they actually need.
 
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Solution
Novuake - Thank You. I made a few changes over the last 6 months. Last year the new SATA 3.2 standard was adopted. It is supposed to signal the beginning of the transition from consumer SATA 3 ssd's to PCIe ssd's. In addition the SATA 3.2 standard marked the beginning of the transition from mSATA to M.2 NGFF ssd's for mobile computers. Once I realized the transition would take 4 or 5 years to complete I decided to consolidate everything into one large database instead of having separate databases for each type. According to my web stats people from a lot of different countries visit the site so I also added links to ssd reviews in languages other than English. They are identified by the 2 letter country codes in parentheses.
 
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