I am trying to find information on the relative "performance hit" which would be taken by using an external USB 3 drive instead of a traditional internal SATA HD.
In order to try to evaluate the speed difference, I have looked at the performance charts for the 2.5" external USB3 drive I would be using (WD My Passport) and compared it to the internal SATA drive I would use (WD Scorpio Black).
The Read Throughput Average is 83.5MB/s for external against 97.99MB/s for internal.
The Write Throughput Average is 83.3MB/s for external against 93.42MB/s for internal.
The difference in these figures is approximately 20%, am I right in thinking that the actual difference in performance would only be around 20%? I am aware that I am overlooking factors such as read access time, performance reading smaller files etc, does anyone know the relative difference these would make?
The reason why I ask is because I am building a system using Akasa Euler case, this case only has room for 1 internal 2.5" drive. The MOBO does support mSATA, I was originally planning on going with an mSATA 256GB SSD along with the 750GB WD Scorpio Black.
However the mSATA is only 3.0GBps, so I would sacrifice SSD speed against using a Samsung 840 Series 250GB SSD (can use SATA 6.0GBps). However using a traditional SSD would mean there is no space for the 750GB WD, meaning I would have to rely on an external USB 3.0 drive.
What would other people choose to do in this situation? Changing the case is not an option, I am hellbent on using this one.
In order to try to evaluate the speed difference, I have looked at the performance charts for the 2.5" external USB3 drive I would be using (WD My Passport) and compared it to the internal SATA drive I would use (WD Scorpio Black).
The Read Throughput Average is 83.5MB/s for external against 97.99MB/s for internal.
The Write Throughput Average is 83.3MB/s for external against 93.42MB/s for internal.
The difference in these figures is approximately 20%, am I right in thinking that the actual difference in performance would only be around 20%? I am aware that I am overlooking factors such as read access time, performance reading smaller files etc, does anyone know the relative difference these would make?
The reason why I ask is because I am building a system using Akasa Euler case, this case only has room for 1 internal 2.5" drive. The MOBO does support mSATA, I was originally planning on going with an mSATA 256GB SSD along with the 750GB WD Scorpio Black.
However the mSATA is only 3.0GBps, so I would sacrifice SSD speed against using a Samsung 840 Series 250GB SSD (can use SATA 6.0GBps). However using a traditional SSD would mean there is no space for the 750GB WD, meaning I would have to rely on an external USB 3.0 drive.
What would other people choose to do in this situation? Changing the case is not an option, I am hellbent on using this one.