I just bought a MBP 13" mid 2014 with a 128 GB SSD.
When doing a disk speed test with the Black Magic Design-app, I only get about 210 MB/s write and about 510-550 MB/s read.
All the benchmark videos I have seen using the same app all get about 310 MB/s write and up to 700 MB/s read.
Is there something wrong with my disk? The computer seems fine in daily use but I want the performance I paid for.
Best Answer
Well if it is not the state of you disk it could easily be just a different SSD vendor. Those figures you have provided are from testing SanDisk 128GB equipped ones.
Apple has many different vendors for same part and some SSD chipsets are faster at sequential than other. It might just be the case. Here is an article on similar discrepancy over 2013 and 2014 MBAs
If it is the case then what you can do is either sell it and find SanDisk equipped one or bring it back to Apple if you are in 14 days window (you would have to pay restocking fee though. No you can't claim that you are not getting performance you have paid for because Apple is only advertising its performance as “up to” figures)
On the other hand if you are not working with high def video on this machine and SSD I wouldn't bother since those sequential speeds are only good for that. And that tool is from company that is creating pricey tools for movie production btw.