While capacity increases, the performance discreases, Why ?

Hello.

I have a question about that most of the 480GB and higher capacitied SSDs gets sentetique R/W speed and IOPS gets bit of slower than the smaller capacity models in the same series line.
Do you guys have any information about why the manufacturers following this kind of way ?

Best regards,
Polen.

Usually it is the other way around, larger capacities offer higher performance (up to a point).

Do you have an example?

Sure.

Corsair Force GS 480GB is: R/W = 540MB / 450MB , 50K Write IOPS
Corsair Force GS 240GB is: R/W = 555MB / 525MB , 90K Write IOPS

And most of other companies also does the same.

Well go for a Samsung, or Corsair Neutron or something.

I wouldn't really recommend the Force series.

Thank you.

But I would like to know why the manufacturers doing in this way :)

Higher density memory often has slightly slower performance characteristics than lower density, so once you max out your parallel channels performance might decrease if you swap in high density chips for lower density ones. However this isn't the kind of difference a home user will notice, and the larger capacity drive will stay performing at a high level for longer.

Got it.
I thank you for your answer kalniel.

Best regards.