Will Thunderbolt affect random performance of ext. SSD?

[wmy5]

I know the pain to tear down the new iMac makes lots of people go for external SSDs. Instead of sequential r/w speed, my concern is the random speed. Since there is a bridge chip between SATA and Thunderbolt, I highly suspect this will definitely degrade SSD's performance when reading/writing lots of tiny files. Does anybody have a benchmark of that effect? After all, almost no respond time is the biggest edge over spinning HDDs.

 

[eagandale4114]

I know the pain to tear down the new iMac makes lots of people go for external SSDs. Instead of sequential r/w speed, my concern is the random speed. Since there is a bridge chip between SATA and Thunderbolt, I highly suspect this will definitely degrade SSD's performance when reading/writing lots of tiny files. Does anybody have a benchmark of that effect? After all, almost no respond time is the biggest edge over spinning HDDs.

Highly doubt that it will be an issue. Apple has been shipping TB + internal SSD machines for quite some time now.

 

[MeFromHere]

I know the pain to tear down the new iMac makes lots of people go for external SSDs. Instead of sequential r/w speed, my concern is the random speed. Since there is a bridge chip between SATA and Thunderbolt, I highly suspect this will definitely degrade SSD's performance when reading/writing lots of tiny files. Does anybody have a benchmark of that effect? After all, almost no respond time is the biggest edge over spinning HDDs.

Look around at anandtech.com. There are lots of SSD benchmarks and comparisons, you may find something representative there.

 

[wmy5]

Highly doubt that it will be an issue. Apple has been shipping TB + internal SSD machines for quite some time now.

What I mean is if I using external SSD to store my OS and entire system, will the TB be the bottle neck for random r/w?