The 250GB Samsung 850 Evo has a similar architecture to its hugely successful predecessor, the 840 Evo. Both drives are TLC based but the 850 uses 3D V-NAND as opposed to regular NAND. Both drives also feature a Turbowrite cache (TWC) which buffers up to 3GB of writes. The TWC enables high burst write speeds but when the cache exhausts write speeds drop to 300 MB/s. Comparing the 850 and 840 Evos shows that effective speed, has improved by 11% and the warranty has been extended from three to five years but prices are also up by 11%. The 850 Evo does put in superb benchmarks (second only to the 850 Pro) but these are only valid within the TWC. At current price levels the 850 Evo struggles to compete with the value leaders. [Dec '14SSDrivePro]
The 240GB Intel 335 Series SSD is four months older than the group leaders which average 13 months old. The hardware configuration consists of a Sandforce 2281 controller which is coupled with Intel's own 20Nm NAND flash. This particular combination is known to have relatively weak compressible write speeds, and the observed performance figures confirm this. With sequential peak and average read/write speeds of 510/234 and 367/209 MB/s the core performance profile is exactly as I would expect, very skewed in favour of reading over writing. With an overall effective speed of 434 MB/s the 335 is nearly 25% slower than the 533 MB/s group average. There are both faster and cheaper alternatives in the group test. [Feb '14SSDrivePro]
Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]
Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.