Samsung launch the 840 EVO: Up to 1TB and Faster Writes for 120GB
by Ian Cutress on July 17, 2013 9:00 PM EST
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 750GB |
1000GB | |||
| 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 | ||||
|
Samsung SSD 830 (256GB) |
Samsung SSD 840 (250GB) |
Samsung SSD 840 Pro (256GB) |
Samsung SSD 840 EVO (250 GB) |
|
| Controller | Samsung MCX | Samsung MDX | Samsung MDX |
Samsung MEX |
| NAND |
27nm Toggle-Mode 1.1 MLC |
21nm Toggle-Mode 2.0 TLC |
21nm Toggle-Mode MLC |
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 $175 at Newegg.
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Bazooo - Wednesday, July 17, 2013 - link
Looks really good...But what about pricing for both consumer and enterprise line?abrowne1993 - Wednesday, July 17, 2013 - link
Too bad I won't be able to afford one of these.sheh - Wednesday, July 17, 2013 - link
More TLC...sherlockwing - Wednesday, July 17, 2013 - link
Check this articlehttp://www.anandtech.com/show/6459/samsung-ssd-840...
840 250G will last 23 years writing 10GB a day, there is nothing wrong with TLC write endurance for consumer usage.
Oxford Guy - Thursday, July 18, 2013 - link
HardOCP found big problems with the 128 GB drive.Oxford Guy - Thursday, July 18, 2013 - link
Also, this is 19nm TLC which will have even worse latency and longevity.sheh - Thursday, July 18, 2013 - link
Endurance is also about data retention.For some reason this gets just about zero coverage in tech sites, so I don't know what happens in real life. According the the JEDEC standard for SSDs, an exhausted flash block in a consumer drive is only required to retain data for 1 year. I have no idea what's really happening in real flash and drives, nor how the retention time graph looks throughout the drive's life.
MikhailT - Wednesday, July 17, 2013 - link
Here's the thing, I rather have a 1-2TB of SSD with 3-bit TLC or even 4-bit NANDs for slower storage alongside a primary super-fast 120GB SSD SLC/MLC drive, than a single 1TB MLC drive.Eventually, those SSDs are going to exceed the current 4TB max of HDDs and over time, they'd get cheap enough to worth its costs. 1TB SSD 2.5" drives at 100$ each in 2-5 years from now.
Right now, you can get 960GB MLC M500 drive for 650$ at Newegg. It's going to be interesting to see what Samsung price these 960GB-1TB TLC drive is at, it cannot be more than 650$ for sure.
UltraTech79 - Thursday, July 18, 2013 - link
Cost with halve and storage will double every (roughly) 18 months. So your $100 TB SSD will be closer to 5 years. 2? No way. Not good business to let it drop that fast.UltraTech79 - Thursday, July 18, 2013 - link
I will predict right now that in 5 years we will see $100 1TB drives and $700 8TB drives.