[SOLVED] What is the difference between 3D NAND and 3D TLC?

[hwcheung]

I am looking for a 1TB SSD and find there are a lot of choices in the market.

In particular, I find ADATA GAMMIX S50 Lite is 3D NAND while ADATA GAMMIX S50 is 3D TLC.

What is the difference? Which one should I buy? Any advice please? Thanks.

It seems the former has higher MTBF but lower speed. The price is lower. Are these the only major factors I need to consider?

 

[alceryes]

The terms are not directly comparable. SLC, MLC, and TLC are terms used to describe the amount of bits per cell. 3D NAND means that the cells are stacked creating a much higher density than the traditional 2D NAND memory.
Remember, manufacturers, especially IT component manufacturers, love to throw technical terms into the product name to make it sound better. Many times these terms have no direct correlation with actually being 'better'.

 

[hwcheung]

Thanks. I got it.

 

[fredfinks]

QLC should be mentioned. Its has MUCH lower write endurance / lifespan than the others.

Its cheaper and for read intensive uses its fine, but for heavy write applications its not a good choice.

 

[hwcheung]

Data safety is important to me. I will avoid QLC.