Following up to our review of the 1TB mSATA EVO, we have the smallest capacity size available from this new product group: the 120GB model. If you've followed SSDs for the last few years, you already know that smaller capacity drives write slower than larger models. For those that don't already know, let's cover why.
When the SSD controller reads and writes to flash, it does so through channels. You can think of the controllers channels to the flash as roads to a stadium (controller), from the suburbs (NAND flash). The more roads you have coming in, the faster people can get to the stadium and sit down. In SSD terms this is called parallelism; more data comes to the controller through more channels, since the bus width is fixed. Smaller SSDs have less NAND packages, so there are not as many roads to carry the data.
The Samsung 840 EVO 120GB mSATA has just two NAND flash packages, with four-19nm die inside each package. Samsung rates the sequential performance at 540 MB/s read, and 410 MB/s write. Random IOPS performance listed for the 120GB capacity size is 94K read, and 35K write.
To achieve the high sequential write performance using TLC flash, Samsung uses an SLC like layer to cache writes. On the 1TB model, we observed a large SLC area due to the special area being on die, and the larger 1TB model has significantly more die than the 120GB model. What that means is that you have less of a cushion with the 120GB drive that we're looking at today. It's something we'll keep an eye on while during the testing phase of this review.
Looking at the spec sheet, we see Samsung's four new mSATA form factor drives that range in capacity from 120GB, to 1TB. The capacity sizes double at each higher capacity product SKU. The MSRPs are close to that of the EVO 2.5" models: 120GB ($149.99), 250GB ($259.99), 500GB ($489.99), and 1TB ($859.99). We suspect the MSRP prices will fall rapidly to get in line with the 2.5" models. The EVO mSATA models carry the same three-year warranty that the 2.5" models ship with in America.
PRICING: You can find products similar to this one for sale below.
United States: Find other tech and computer products like this over at Amazon's website.
United Kingdom: Find other tech and computer products like this over at Amazon UK's website.
Canada: Find other tech and computer products like this over at Amazon Canada's website.
Recommended for You
- We at TweakTown openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion of our content. If any company representative wishes to respond, we will publish the response here.
Latest News Posts
- SpaceX plans first private customer for Moon trip in 2023
- Metro Exodus new GeForce RTX real-time ray traced GI video
- YouTube moves gaming front and center
- SCUM sells 1 million copies to date
- Next-gen PSVR may have eye-tracking, fight motion sickness
- can not find WIIFI driver
- Qsan XN3002T Two-Bay NAS Review
- Can't connect to the media server on my AC68U
- Need help with my asus rp-AC68U
- x299 Taichi XE vs Formula OC usb controllers 2 or 3?
- Psyonix And Hot Wheels Reveal New Rocket League DLC
- Pirate Island Rescue released on Steam
- Celebrated crime caper The Swindle slinks onto Nintendo Switch this October
- Tricky Towers coming to Nintendo Switch!
- Beat Hazard 2 is now in Beta and will be heading for Steam Early Access in October.