Sustained writes.Lets say, disregarding the prices, how is the PRO better, in what way?
Youre right, im lost already. You said layers mean capacity, so does it mean it can hold MORE data ? so 128 layer would be better than 96?Better? IDK for certain about longevity. they allow for higher capacity drives.
REALLY BAD ANALOGY ALERT hopefully you get the general idea.
in a standard SSD the chips are laid out like floor tiles one layer high. in multi-layer chips the layers are like the tiles still in the box sitting on the floor, they are connected through each other rather than connected to each other by the floor, which slows some things down. since the layers are stacked the more layers the higher the capacity for the same area of circuit board. the picture illustrates the 3D way the chips are connected through each other
the MLC means Multi -Level Cell and refers to the ability to store 2 bits of data per cell.
QLC means each cell can hold 4 bits of data.
OH I see. Samsung NVME 970 EVO PLUS vs 970 PRO, both 1 TB eachit gets fuzzy in an apples and oranges way, they cannot be directly compared, one holds twice the data per cell the other does. 2 vs 4. the layering and the levels per cell play a part. assuming each layer holds the same amount of data (4KB per layer MLC vs 4KB per layer QLC), yes the more layers the better.
which drives in particular did you have in mind?
For 99% of use cases, the 970 EVO or EVO Plus is just fine rather than the Pro.OH I see. Samsung NVME 970 EVO PLUS vs 970 PRO, both 1 TB each
OH. Thats the pros. what about the cons to this layering? such as SLC is better than QLC but QLCs are much less expensiveCheck my signature link.
In brief: consider an array like an Excel spreadsheet where you have a column and a row. Add a third vertical direction to that where every plane is a layer. Now add more layers. That's it.
As you add more layers you basically extend a pillar for each column, row combination with every point being a cell that can hold one or more bits (TLC = 3 bits, for example). For the same amount of data this means the cell area can be larger which can be used in a combination of ways: increase performance, increase endurance, increase capacity, etc. There are many secondary or "knock-on" effects to this but that's the basic idea.
Lets say, disregarding the prices, how is the PRO better, in what way?For 99% of use cases, the 970 EVO or EVO Plus is just fine rather than the Pro.
Sustained writes.Lets say, disregarding the prices, how is the PRO better, in what way?
Can the PRO's buffer fill up too and slow down as well?Sustained writes.
If you are writing a couple hundred GB of sequential data, the EVO will slow down a bit once the buffer fills up. The Pro will sustain that speed throughout.
https://hothardware.com/reviews/samsung-ssd-970-evo-and-pro-review
But...unless you're doing that multiple times per day (or hour)...you'll never notice anything except a smaller wallet.
Did you read that review?Can the PRO's buffer fill up too and slow down as well?
I dont understand the language in the review. Its too complex. My english is limited.Did you read that review?
Little actual difference.
Bottom line - Unless you KNOW you need the Pro, you don't.I dont understand the language in the review. Its too complex. My english is limited.
OH. Thats the pros. what about the cons to this layering? such as SLC is better than QLC but QLCs are much less expensive