It is said that best things comes in small packages. Solid State Drives or SSDs are the small factor 2.5 inch width device. It is sleek design device and feels almost weight less. Still, SATA SSDs speeds up data upto 10 times with compared to SATA III Hard Disk Drives.
SSDs Market Share by Form Factor
If you are new to SSD do check out more about SSDs here. By 2023, market share for 2.5 inch SATA drives will be more than 80% among SSDs. These are more used devices than other Form Factors. It can fit most Motherboards. By mid 2021 SSD will be more affordable. It will eventually replace Hard Disk Drives.
SSDs Market Share by Company
WD and Samsung enjoys their 50% market share over others SSD providers. All companies are innovating on these devices. This space is going to be more fierce. We should see more competitive pricing in future.
We review Samsung, WD, ADATA, Micron, Kingston and Gigabyte SSDs. They cover a variety of SSDs available in the market.
How does SSD fill data?
Both TLC and QLC SSDs are equipped with either DRAM cache or SLC cache or both. The DRAM increases the initial transfer speed. Then comes SLC cache with more space. It has lower speed than DRAM but significantly higher than base memory type. Post filing DRAM and SLC cache, SSD fill the base model viz. QLC or TLC or MLC. The MLC SSD don’t need SLC cache as they are very fast themselves.
We have done real-world testing of devices. That means we did prolong testing with data transfer above 100 GBs for each devices. Hence, the results might be different from what is advertised by companies or promoters. Most of SSDs we tested have TLC memory type. We have QLC and MLC memory types also in the review.
We have mentioned the cache size and speed for each of DRAM, SLC cache and the base memory module. Endurance and warranty is as per company website. All the cache size and DRAM size mentioned are based on our testing experience. The SLC or DRAM cache sizes are not mentioned by company themselves. The product mentioned here are most updated versions till August 2020.
Finally it’s here :-
Below is based on performance and long life :-
Samsung PRO > Samsung EVO > Kingston KC600 > Micron Crucial MX500 > Kingston A400 > ADATA SU800 > ADATA SU750 > WD Blue > Gigabyte UD PRO > ADATA SU650 > Micron Crucial BX500 > Gigabyte SSD > Samsung 870 QVO > ADATA SU 630 > WD Green
All the above SSDs are good. But finding the optimal one is best based on budget and usage. In our analysis we found Samsung PRO series to be the best. Samsung PRO SSD series is MLC (2 bit) memory type. They have longer life and are faster SSD than TLC.