Samsung software have Rapid Mode, it's basically a caching function. Instead of actually wait for it to finish copying it is being cached so that the system will be free to do other stuff.
Here's an example of caching:


The iso file is from nvme ssd copy to Samsung sata ssd. Even though it show it is being copied at 1.35GB/s speed (sata max speed is only 500+ MB/s), in actual it just started copying at almost 400 MB/s speed. I have to screenshot second time because everything happen so fast the copy window only appear for about a second.

Caching function still have some use if on sata but if on nvme it is fast enough, no need caching.

But then again, without caching function the sata ssd can finish copy 3GB file at about less than 6 seconds. Also Windows 10 now have caching function built in, I can also "copy" at 1+ GB/s speed to my HDD drive.



This post has been edited by xxboxx: Aug 12 2019, 11:08 AM

Usually reduced performance is when the disk almost full, not when just use less than 20%
This case most likely plenty of programs after install running in background that been reading or writing on SSD while benchmark so that's why it seems the result is lower.

Black is performance oriented HDD, N300 is NAS HDD. Both spin at 7200rpm.

If your router have USB port you can put the N300 in external cover and connect to it, making it your LAN storage.

Check Garage Sales, there's few seller selling cheaper than Lazada/Shopee seller selling.

Worn out HDD is like that. Signs of it dying. Better make a backup on important files first and then replace it with SSD before it kaput.

Nowadays can get 1TB SSD for about RM500.
Not Samsung of course, but as 2nd drive for games only it is good enough. Many brands also now able to achieve same performance as Evo series.

Based on this SSD list SU650 is DRAM-less. SU800 is better as it have DRAM.

Few months ago at Garage Sales someone selling new SN750 1TB at RM550 IINM.
Garage Sales usually have better price than other online marketplace such as Shopee or Lazada.

Oh no wonder why they can sell lower than other seller. But buy from US also no warranty right.

The bracket have place to screw 2.5 inch SSD/HDD

Open then and see if got bracket.
Can use the dvd drive sata cable.

If you buy nvme ssd you can't use on your current mobo. Well you can if you use sata to m.2 adapter, but who knows what issue will arise and that adapter also an added cost.

If you plan to upgrade mobo in near future then better to hold off your purchase until that time and then buy m.2 nvme. If still some time then maybe buy a cheap small sata ssd that'll cost like RM100 first.

Read the spec, most mobo only have 1 slot at max bandwidth. Some mobo have all the slots with same max bandwidth.

SLC cache is not DRAM. SLC cache is to help give max speed write, up till the cache is full.
Example of SSD writing at max speed due to SLC cache and then the speed slow down once cache is full.

https://www.anandtech.com/show/8520/sandisk...40gb-ssd-review

According to this Google spreadsheet SSD list it doesn't have DRAM, but this A55 256GB review show there's NANYA's DRAM module.

A400 don't have DRAM, better don't.
You want proven good SSD, Crucial MX500

https://www.anandtech.com/show/12263/the-cr...00-500gb-review

Good enough for SATA SSD performance, you want better have to go for Samsung or Intel SSD.
1TB got double the flash chips than 500GB, so it's endurance is also double.
If you got M.2 NVME slot then it's better to go for that instead of SATA.

Better just stick with Crucial

Small different only in real life usage, unless most of the time you always left the laptop idle without feeding it power.
I didn't check local Samsung Evo price. If just difference around RM30 then Evo does give more value for money.

m.2 nvme
Right now small improvement on loading time compared to sata ssd, but when DirectStorage become available sata will be bottleneck at 600MB/s while current nvme with pcie gen 3 are 500% faster than sata.
https://devblogs.microsoft.com/directx/dire...s-coming-to-pc/

1TB seem the sweet spot right now for storage size and price. Those that like to have plenty of games installed and feel 1TB not enough space should also have HDD as place to store inactive game.

This post has been edited by xxboxx: Nov 11 2020, 01:42 AM

I don't think seller that doing the warranty, they only intermediate between buyer and Crucial. Try email Crucial ask what their warranty and where to send for warranty. Can also name the seller to Crucial for giving misleading info.