It can be said that the main bottleneck of computer performance lies in the hard disk, the traditional mechanical hard disk reading and writing speed is generally very low (generally 5400 RPM or 7200 RPM, the faster the speed of reading and writing is faster). A larger disk has a positive effect on the speed of reading and writing. Imagine the benefits of SSDs on your own, and I won’t repeat them here.

Using the NAND Flash chip as the storage medium, SSDs have no internal mechanical structure, so there is no data search time, delay time and seek time. SSDs can read and write faster than traditional mechanical drives, and of course they are more expensive.

First of all, no matter how good the SSD is, it depends on whether your computer can support such high read and write speeds. Here you need to look at the interface type of the hard disk. SATA is the abbreviation of SerialATA, commonly said is the serial data transfer interface

SATA3 maximum support 600M/S SATA2 maximum support 300M/S SATA1 maximum support 150M/S

One trick to choosing a reliable solid-state drive is to choose a manufacturer with the flash capacity. They are Samsung, Intel, Toshiba, Micron, SanDisk, and Hynix.

SanDisk is the world’s largest supplier of flash data memory cards. Hynix is the world’s third-largest DRAM maker and the ninth largest among all semiconductor companies.

Solid state drives are good or bad based on performance parameters: maximum read/write speed and 4KB random read/write value respectively. Because solid-state hard drives are stored differently from mode drives, seek values are essentially nonexistent, so just look at the four values above.

A good SSD is basically determined by master control and particles

Currently, there are two main SSDs on the market, Sandforce and Marvell 9184. The main control chip is the brain of the SSD, and its role is to reasonably allocate the load of data on each flash chip, and to assume the whole data transfer, connecting the flash chip and the external SATA interface.

Main control chip

Marvell features fast speed and many features. Pucote, Micron, SanDisk, Toshiba and other multi-purpose its main control.

SF Sandforce Features: Fast read, low write magnification, slow drop (performance decays after a period of use or capacity). Intel, Kingston and others use its master control.

JM JMicro features: price advantage, low channel number. Ying Chi, Wei Gang, etc.

particles

Summary: MLC > TLC, new process > old process, positive > white >> black, synchronous > asynchronous.

SandForce new generation master chip: SF-2000 series

Here are a few brands of SSD:

Shadow chi series

Features: cheap price

  • Battleman (low-end main force, white),

  • The radium GT (basically taken off the market, it was a positive film when it was tested, but after selling for a while it turned white),

  • Radium GT PRO (once high-end, now in clear condition),

  • Tiger General (the replacement of GT Pro, even PCB is the same),

  • Black will (own high-end, but still protect three years. The particles are good and the cache has been changed from other South Asian to Hynix. Series of

SanDisk Ultra Plus

Features: convenient warranty, low price. Master: Marvell 9175 + Cache 128M DDR3 + Granule Toshiba 19nm MLC ToggleDDR 3000PE. Compared to the M5S, the main control has shrunk from 8 channels to 4 channels. So this dish is not recommended to buy 256G or above

Micron M500

Features: Cheap, support hard encryption. Main Control: Marvell 9187 + Cache 256M DDR3 + Particle IM Flash(Intel and Micron’s NAND joint venture)20nm MLC Synchronous 3000PE. This set looks mediocre due to the firmware speed limit, but the actual materials and reliability design are good. The price and performance of the 240G are good and worth considering.

Intel 530

Warranty obsessive-compulsive disorder recommended. Main control: SF2281 + particle IM Flash 20nm MLC synchronous 3000PE.

Samsung 840 EVO

Run the king. Main Control: Samsung MEX+ Cache 256M DDR3 + Particle Samsung 10nm TLC 1500PE. Controversial more big products, the same price without its right running points + the shortest life.

Toshiba THNSNH

High continuous, low 4K. Master: Marvell 9187 + Granule Toshiba 19nm MLC ToggleDDR 3000PE. Yeah, no cache. There’s NAND, just so confident.

Seagate 600 was originally a high-end product. It can replace the M5S when it is on sale. Main Control: LAMD LM87800 + Cache 128M/256M DDR3 + Particle Toshiba 19nm MLC ToggleDDR 3000PE.

Poulcott M5P, Samsung 840Pro, SanDisk Extrem

The 840Pro has the best performance, the Extreme after-sales power, the M5P brand recognition is high and the price advantage is slight.

Notebook interface products (MSATA /NGFF)

Sandisk X110 mSATA

Master: Marvell 88SS9175 + Cache 128M DDR3 + Granule Toshiba 19nm MLC ToggleDDR. The performance is similar to the top speed of desktop computers. The main control is also low-power four-channel, performance is powered by nCache, and DEVSLP support (for the Haswell chipset sleep power saving function). Five years warranty

Pucket M5M/Pucket M5M+ / Canxing M6M

Pocott M5M and CXING M6M are the same products with slightly higher performance than the benchmark Pocott M5S of SATA. The materials used are basically the same as M5S, which should be due to firmware. Marvell 9187 + Cache 256M DDR3 + Granule Toshiba 19nm MLC ToggleDDR 3000PE

Micron M500 mSATA

Main Control: Marvell 9187 + Cache 256M DDR3 + Particle IM Flash20nm MLC Sync 3000PE. 240G treasure treasure low to 900 pieces, have you seen so cheap in the mSATA of serious brand?

Samsung 840 EVO MSATA

Devslp support, other features are basically the same as SATA version.

Intel 525

The price is slightly lower than the X110, with the same five-year guarantee, but the score is a bit poor. Don’t care about running points can buy quite affordable, run points party don’t touch

The following a few do not recommend, more people:

SanDisk SDSSDP is the bargain that is neither Ultra Plus nor ExtremeII

Kingston V300 main control: SF2281 + particle white tablet.

Vigon SP900 main control: SF2281 + particle white tablet. It’s more expensive than a Kingston. You win, Wilhelm.

Maxell X3000 main control: group PS3108 + 256M + particle white. Branded goods.

Ps3108 + 256M + Particle Toshiba 19nm ToggleDDR (possibly rev. B) This price, are you scared? Besides, what is the beggar version on the thief ship, worthy of the LOGO?

Test the SSD data, parameters, etc., you can use HD Tune to test.

Solid-state drives list: http://www.newhua.cc/hareware_2014_2/