Samsung 840 Pro SSD Review
Crystal Disk Mark
In Crystal Disk Mark we see that the 4K results are, although much better than the 830, not quite up there with the very finest. It's close though. The big block size and sequential read tests give a massive result though. If the read is impressive, the write speeds are something else entirely. The 840 Pro slaughters the competition, especially in the 4K test. Stunning stuff.