Difference between Samsung 850 EVO and 840 EVO?

[Ragnarous]

Hi, I already have a 250gb 840 EVO, and i will buy a 500gb 850 EVO, but i still don't know the main differences between the 840 and 850 even after searching the net.. Is the 850 faster? If it is, should i install the OS on the 850? Please tell me

 

[MarkW]

The 850 EVO is using new technology where the storage is stacked 32 layers deep. End result of this is extremely fast memory access, and dramatic drops in power usage by the memory. It also uses a larger cell space which is better for an SSD's longevity.

The 840 EVO uses older single layer chips, and a smaller cell size. Smaller cell sizes in SSD storage results in shorter lifespans than larger sized cells.

The 850 is a bit faster, but is limited by the speed of the SATA III ports.

Installing Windows on an SSD provides for a much faster booting process than a hard driver can. I know on Windows 8.1, I can boot up to the login prompt in about 7 seconds.

 

[Ragnarous]

The 850 EVO is using new technology where the storage is stacked 32 layers deep. End result of this is extremely fast memory access, and dramatic drops in power usage by the memory. It also uses a larger cell space with is better for an SSD's longevity.

The 840 EVO uses older single layer chips, and a smaller cell size. Smaller cell sizes in SSD storage results in shorter lifespans than larger sized cells.

The 850 is a bit faster, but is limited by the speed of the SATA III ports.

Installing Windows on an SSD provides for a much faster booting process than a hard driver can. I know on Windows 8.1, I can boot up to the login prompt in about 7 seconds.

It will be installed in a 6gb/s sata port.. So to sum up, i install the OS on the 850?

 

[MarkW]

Yes.

 

[Ragnarous]

Yes.

Hey, may i ask, since i' will have OS and everything on the 850 500gb SSD, what use will i make of the 840 evo? I thought about it and there isn't anything useful to fill it with :/

 

[MarkW]

I would use it to copy backups to if nothing else. Use Samsung Magician software to Secure Erase the 840, reformat it, and you have a nice empty drive that is fast. 256Mb is a lot of room, but obviously it cannot hold 500Mb. So decide whats most important to you, and once a week or so, copy those items to the 840.