Why do 256gb SSD perform beter then 128gb SSD ???

[zjw1974]

Maybe a dumb question but can someone let me know thinking of getting one of the two....

 

[AFPoster]

No offense but it's "why do" not due in your topic. Anyways, my guess bigger is better??? Shouldn't make a difference except size, but if you are curious about performance than bigger is better is all i can say.

 

[Inside_line]

Technically there should be no difference until the drive is full. Even then, you're going to fill the 256 up anyway, so it is a mute point. The 256 should technically last longer because it has more space to spread the data and therefore better wear leveling. But we are likely talking time frames when you have already upgraded computers 2-3 times.

 

[Weaselboy]

Here is the answer from the Anandtech review of the Intel 510 SSD 250GB vs. 120GB.

The 120GB drive will have fewer NAND die available, and SSDs achieve their high performance by striping data requests across as many NAND die as possible - hence the lower performance specs.