The Samsung 750 EVO (120GB & 250GB) SSD Review: A Return To Planar NAND
by Billy Tallis on April 22, 2016 8:00 AM ESTMixed Random Read/Write Performance
The mixed random I/O benchmark starts with a pure read test and gradually increases the proportion of writes, finishing with pure writes. The queue depth is 3 for the entire test and each subtest lasts for 3 minutes, for a total test duration of 18 minutes. As with the pure random write test, this test is restricted to a 16GB span of the drive, which is empty save for the 16GB test file.
The 750 EVO outperforms any non-Samsung drive of similar capacity on the mixed random I/O test, and the 120GB 750 EVO even beats a few MLC drives with twice the capacity.
The 750 EVO has above-average power efficiency during the mixed random I/O test.
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Most drives lose performance during the middle phases of the mixed random I/O test. High performance scores on this test rely on performance bouncing back during the final phase of the test when the workload shifts to pure writes. The 750 EVO's spike at the end is noticeable though not huge, but it also benefits from comparatively good performance in the first two sub-tests.
Mixed Sequential Read/Write Performance
The mixed sequential access test covers the entire span of the drive and uses a queue depth of one. It starts with a pure read test and gradually increases the proportion of writes, finishing with pure writes. Each subtest lasts for 3 minutes, for a total test duration of 18 minutes. The drive is filled before the test starts.
Unlike for the mixed random I/O test, most MLC drives are able to maintain a clear performance lead over the planar TLC drives—including the 750 EVO.
The 750 EVO's power consumption is low enough that it is clearly the most efficient planar TLC drive, but its efficiency doesn't beat a typical MLC drive.
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The 750 EVO has great read speed, but it bottoms out at a relatively low level during the middle of the test and doesn't bounce back at the end as much as most MLC drives and the 850 EVO.
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DanNeely - Friday, April 22, 2016 - link
The cheap SSD will still blow the spinning rust in the other crappy TN 720p laptop out of the water.jabber - Friday, April 22, 2016 - link
Yeah amazing how limited people's imaginations are when it comes to hardware and other peoples usage needs. Unless it's pushing 2GBps it's junk. Tedious people. If every laptop in the world with a cheap 5400rpm HDD in it swapped to one of these 'bottom of the barrel' Samsung SSDs, it would be a revelation. Make my job of support a lot easier and faster.Movieman420 - Friday, April 22, 2016 - link
Keep in mind, launch prices are always a bit high. Sammy could sell em for less at retail...but they're really not after retail with the 750...they wanna move em in bulk minus retail packaging costs. As far as performace, they're just right...for the intended market. As a budget OEM part, the vast majority of end users (80% maybe?) will fall in Anands light bench metric where this drive makes a pretty good showing. Any better would risk cannibalizing EVO sales. Overall, this product and placement was well thought out by Samsung...as usual....and from a performance standpoint a lil over-provisioning goes a long way. I'm assuming it's not compatible with magician's RAPID mode...unless say your a huge oem customer who'd pay a tad extra and make it a performance offering in more expensive lappys with enuff ram.
iwod - Friday, April 22, 2016 - link
What we need to know is final street price, not launch price.Because as it stand i have Zero reason to buy them. It needs at least a 50% price cost.versesuvius - Saturday, April 23, 2016 - link
As long as Samsung is clearing unused chips from its stock, it could just offer these drives for $25 each to make a gesture of good will towards its existing customers and make some new ones too.The_Assimilator - Saturday, April 23, 2016 - link
Good to see you're "revieiwng" this drive. Could you maybe consider reviewing a spellchecker and/or editor in future?zodiacfml - Saturday, April 23, 2016 - link
Cheapest option but purchased separately, $10 difference is not worth it.The perrformance of the 850 is useful for most people savvy enough to replace drtives.
serendip - Saturday, April 23, 2016 - link
$10 may be a big BOM savings for large system builders but it's pocket change for consumers looking to upgrade from a hard drive. This drive probably isn't aimed at you :)I wouldn't trade $10 for half the write longevity and potentially other issues from using planar TLC. The 850 Evo is still the king and the Sandisk Ultra II is also a good deal when it goes on sale.
Peroxyde - Sunday, April 24, 2016 - link
How is the Corsair LE compared to 850 EVO, 750 EVO? In terms of reliability?odedia - Sunday, April 24, 2016 - link
According to Amazon.com, this drive is currently more expensive then the 250gb 850 Evo. Makes zero sense to buy this today. maybe in a year it will be priced accordingly.