As part of the 2013 Samsung SSD Global Summit here in Korea, Samsung announced that latest member to their SSD lineup – the Samsung SSD 840 EVO, under the banner ‘SSDs For Everyone’.  This new drive will be available in 120 GB/250 GB/500 GB/750 GB/1 TB capacities, using 19nm Toggle 2.0 TLC, compared to the Samsung SSD 840 which uses 21nm Toggle 2.0 TLC and the 840 Pro which uses 21nm Toggle MLC. We also upgrade to the Samsung MEX Controller onboard, one up from the MDX.

Samsung SSD 840 EVO Specifications
Capacity 120GB 250GB 500GB 
Sequential Read 540MB/s 540MB/s 540MB/s 540MB/s
Sequential Write 410MB/s 520MB/s 520MB/s 520MB/s
4KB Random Read (QD32) 94K IOPS 97K IOPS 98K IOPS 98K IOPS
4KB Random Write (QD32) 35K IOPS 66K IOPS 90K IOPS 90K IOPS
Cache (LPDDR2) 256MB 512MB 512MB 1GB

Samsung SSD 840 EVO vs 840 Pro vs 840 vs 830
SSD 830
SSD 840
Samsung SSD 840 Pro
Samsung SSD 840 EVO
(250 GB)
Controller Samsung MCX Samsung MDX Samsung MDX Samsung
NAND 27nm Toggle-Mode
1.1 MLC
21nm Toggle-Mode
2.0 TLC
21nm Toggle-Mode
19nm Toggle-Mode
2.0 TLC
Sequential Read 520MB/s 540MB/s 540MB/s 540MB/s
Sequential Write 400MB/s 250MB/s 520MB/s 520MB/s
Random Read 80K IOPS 96K IOPS 100K IOPS 97K IOPS
Random Write 36K IOPS 62K IOPS 90K IOPS 66K IOPS
Warranty 3 years 3 years 5 years 3 years

The big thing Samsung want to push with the EVO is the increased write speed for the low capacity models. Using a new feature called 'TurboWrite' (more info on this as we get it), compared to the previous 840, whereby the 120 GB model was rated at 130 MB/s and 86K/32K 4K random IOPS, the new 120 GB model is hitting a rated 410 MB/s write speeds.  The peak 1 TB model is rated for 540/520 MB/s sequential read and write, with 98K/90K IOPS respectively.  The 1 TB models will also feature 1 GB of LPDDR2 DRAM Cache.

Enterprise storage is also the focus of the SSD Summit, with Samsung unveiling the XS1715, an ultra-fast NVMe (Non-Volitile Memory Express) SSD with up to 1.6 TB of storage.  The XS1715 is the first 2.5” SFF-8639 SSD using PCIe 3.0 to provide a maximum sequential speed of 3 GB/s, along with 740k IOPS.  The XS1715 will be available in 400GB, 800GB and 1.6 TB versions, with plans to develop the line of NVMe devices.

More information from the Summit as it occurs throughout today and tomorrow!

UPDATE: Pricing is as follows:

Thus for the 1TB model, $650 makes the drive $0.65/GB.  At the 250GB price point, the basic Evo package is $190, compared to the current 840 standard price of $175 at Newegg.



View All Comments

  • Solid State Brain - Thursday, July 18, 2013 - link

    I see no calculations, only conjecture that the drive would only last 3.5-4 years.
    I'll do some math for you for the 120 GB model:

    128 GiB * 1000 P/E cycles = 128000 GiB
    15 GiB/day * 3x write amplification = 45 GiB/day
    128000 GiB / 45 GiB/day = 2844 days lifetime = 7.79 years

    With a 10 GiB/day usage and 2x write amplification (which is closer to normal usage patterns for Samsung 840 SSDs), that would be a 6400 days / 17.53 years write endurance.
  • jb14 - Thursday, July 18, 2013 - link

    I was about to pull the trigger on a 840 500gb replacement drive - if these new EVO drives are suppost to be coming out early august hopefully they will drive the price down on the non PRO stuff? Reply
  • jb14 - Thursday, July 18, 2013 - link

    *supposed Reply
  • DanNeely - Thursday, July 18, 2013 - link

    I think these are intended to replace the baseline 840's; so if you see a good inventory clearing deal jump on it asap since it'll probably be your last chance. Reply
  • Slash3 - Friday, July 19, 2013 - link

    Yep, just like how the Samsung 830 series drives were cheap on Amazon for a few weeks, and then nowhere to be found below MSRP after that. The supply was pushed through the market, and the 840 simply slotted in to take its place. Same with happen with the 840 Evo replacing the vanilla 840. Reply
  • CEyzaguirre - Friday, July 19, 2013 - link

    I just bought an 256GB 840 Pro for $240, do you think it's worth returning and waiting for the $200 Evo? I need a high degree of reliability, so the 5 year warranty and track record of the 840 Pro appeal to me, but I'm also a poor student who would like to save some money. Any thoughts? Reply
  • noeldillabough - Sunday, July 21, 2013 - link

    Now that you have it might as well keep it, it's a better drive and waiting for the new one could take a while. In three years time you might even appreciate the extra warranty! Reply
  • alghost - Thursday, July 25, 2013 - link

    Wow..i think TLC slower than MLC. But this show me thats wrong.. i want to know that Reply

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