Below you see the results of Futuremark's PCMark 7 Professional edition. The software includes 7 PC tests for Windows 7, combining more than 25 individual workloads.

The Samsung 850 PRO 256GB drive scored a great 5604 points at the storage benchmark:

We continue with the PCMark 8 Storage benchmark, which uses traces recorded from Adobe Creative Suite, Microsoft Office and a selection of popular games. Unlike synthetic storage tests, the PCMark 8 Storage benchmark highlights real-world performance differences between storage devices.

The 850 PRo SSD scored 4985 points, pretty close to the Crucial MX100 512GB SSD: