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Comparison A-Data XPG GAMMIX S11 Pro M.2 AGAMMIXS11P-1TT-C 1.02 TB vs A-Data XPG GAMMIX S11 M.2 AGAMMIXS11-960GT-C 960 GB

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A-Data XPG GAMMIX S11 Pro M.2 AGAMMIXS11P-1TT-C 1.02 TB
A-Data XPG GAMMIX S11 M.2 AGAMMIXS11-960GT-C 960 GB
A-Data XPG GAMMIX S11 Pro M.2 AGAMMIXS11P-1TT-C 1.02 TBA-Data XPG GAMMIX S11 M.2 AGAMMIXS11-960GT-C 960 GB
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Placementinternalinternal
Size1024 GB960 GB
Form factorM.2M.2
M.2 interfacePCI-E 3.0 4xPCI-E 3.0 4x
Technical specs
ControllerSilicon Motion SM2262ENSilicon Motion
Memory type3D TLC NAND3D TLC NAND
NVMe
 /1.3/
Write speed3000 MB/s1700 MB/s
Read speed3500 MB/s3150 MB/s
Shockproof1500 G1500 G
MTBF2 m h2 m h
Write IOPS380 K280 K
Read IOPS390 K310 K
TBW640 TB640 TB
DWPD0.4 times/day0.4 times/day
Manufacturer's warranty5 years5 years
General
TRIM
M.2 coolingradiatorradiator
Size22x80 mm22x80 mm
Weight11 g8 g
Added to E-Catalogdecember 2018june 2018

Size

Nominal drive capacity. This parameter directly determines not only the amount of data that can fit on the device, but also its cost; many SSD models even come in several versions that differ in capacity. Therefore, when choosing, it is worth considering the real needs and features of the application — otherwise you can overpay a significant amount for volumes that are not needed in fact.

In terms of actual values, a capacity of 120 GB or less is considered small these days. This can also be equated with a 240 GB SSD. Average values are already considered 500 GB, increased — 1 TB(in the range of which SSDs fall 400 and 800 GB). And the most capacious modern SSDs can accommodate 2 TB, 4 TB and even more.

Controller

Model of the controller installed in the SSD.

The controller is a control circuit, which, in fact, ensures the exchange of information between the memory cells and the computer to which the drive is connected. The capabilities of a particular SSD module (in particular, read and write speed) largely depend on this particular scheme. Knowing the controller model, you can find detailed data on it and evaluate the capabilities of the drive. For simple everyday use, this information is usually not needed, but for professionals and enthusiasts (modders, overclockers) it can come in handy.

Nowadays, high-end controllers are produced mainly under such brands: InnoGrit, Maxio, Phison, Realtek, Silicon Motion, Samsung.

Write speed

The highest speed in write mode characterizes the speed with which the module can receive information from a connected computer (or other external device). This speed is limited both by the connection interface (see "Connector"), and by the characteristics of the device of the SSD itself.

Read speed

The highest data exchange rate with a computer (or other external device) that the drive can provide in read mode; in other words — the highest speed of information output from the drive to an external device. This speed is limited both by the connection interface (see "Connector"), and by the characteristics of the device of the SSD itself. Its values can vary from 100 – 500 MB / s in the slowest models to 3 Gb / s and higher in the most advanced ones.

Write IOPS

The IOPS provided by the drive in write mode.

The term IOPS refers to the highest number of I / O operations that an SSD module can perform per second, in this case, when writing data. By this indicator, the speed of the drive is often evaluated; however, this is not always true. Firstly, the IOPS values of different manufacturers can be measured in different ways — by the maximum value, by average, by random write, by sequential write, etc. Secondly, the benefits of high IOPS become noticeable only with some specific operations — in in particular, the simultaneous copying of numerous files. In addition, in fact, the speed of the drive may be limited by the system to which it is connected. In light of all this, it is generally acceptable to compare different SSD modules by IOPS, but the real difference in performance is likely not to be as noticeable as the difference in numbers.

As for specific values, for the write mode with IOPS up to 50K is considered relatively modest, 50 – 100K — medium, more than 100K — high.

Read IOPS

The IOPS provided by the drive in read mode.

The term IOPS refers to the maximum number of I / O operations that an SSD module can perform per second, in this case, when reading data from it. By this indicator, the speed of the drive is often evaluated; however, this is not always true. Firstly, the IOPS values of different manufacturers can be measured in different ways — by the maximum value, by the average, etc. Secondly, the advantages of high IOPS become noticeable only with some specific operations — in particular, when copying numerous files at the same time. In addition, in fact, the speed of the drive may be limited by the system to which it is connected. In light of all this, it is generally acceptable to compare different SSD modules by IOPS, but the real difference in performance is likely not to be as noticeable as the difference in numbers.

For modern SSDs in read mode, an IOPS value of less than 50K is considered a very limited indicator, in most models this parameter lies in the range of 50 – 100K, but there are also higher numbers.
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