SanDisk X400 1TB SSD Review

[Guest]

SanDisk built a competitive mainstream SSD using 15nm TLC flash for system integrators, but the drive is also quickly gaining traction in the channel with normal consumers.

SanDisk X400 1TB SSD Review : Read more

 

[Kirupakaran Harikrishnan]

In India X400 costs 65% higher than 850 evo in amazon.

 

[LordConrad]

Planar TLC NAND under 20nm is crap. Under 20nm, only 3D NAND should be used.

Personally, I prefer 3D NAND made on 20nm or higher lithography.

 

[rhysiam]

Planar TLC NAND under 20nm is crap. Under 20nm, only 3D NAND should be used.

It's a budget option for sure, but looking at the numbers that drive pushes out it's a pretty compelling product. PCPartpicker at the moment has this drive for $240 (less than 25c/GB), compared to $310 for the 1TB 850 EVO. I'd save the $70 on the X400 myself.

I still want cheaper SSDs, particularly a cheap 2TB SSD so I can ditch mechanical storage altogether, and the price isn't there yet for me. 3D NAND is obviously superior, but it's still quite a bit more expensive too. I think it's positive that we're seeing planar TLC drives that actually perform decently, unlike the trashy BX200 and similar drives we saw a while back which just make too many sacrifices to be a viable option IMHO.

 

[HERETIC-1]

Hi Chris,
Do you know if Sandisk/WD flash that uses on chip copy/folding is any different to
Toshiba/OCZ flash? Or is it at controller/firmware level?
Talking about controllers-Sad to see the X400 die.

Do you have any feedback from manufacturers on the causes of SSD deaths?
If we were to look at Hardware France's No's and be generous and say a failure
rate of around 1%-That's millions of SSD's dying every year.(much less than HDD)
I'm guestimating controller or power components are the most likely.Bit sad that
a diode worth a few cents could brick a system............................

 

[loki1944]

I've got two X400 1TB SSDs and one X400 1TB M.2. SSD; great drives for a good price (at least in the US).

 

[gondor]

Under 20nm, only 3D NAND should be used.

There is no such thing as "under 20 nm 3D NAND". The key reason for 3D NAND being more reliable than current planar NAND is significantly larger lithography (40 nm class versus 10 nm class) which manufacturers can again afford due to its 3D structure.

 

[DuncDog]

Chris,

I just noticed this on the Service Time graphs. It appears that the metric is measured in seconds and not milliseconds. Surely, none of the SSDs have a service time exceeding 15 minutes.

I thought I was crazy on the Corsair SSD review a little while back, but it appears that it is present there as well.

 

[DuncDog]

OH!! I was going to ask something as well. In your time with the X400, did you ever experience any degree of suggestion from the software or Sandisk to overprovision some of the drive like Samsung does with the 840/850 EVOs? I know my 500 840Evo and 250 850Evo complain something fierce if I don't. Well Samsung Magician does at least.