This time around, RAPID mode had very little effect on the drive's performance. Looking at the screenshot above, you can see that the 850 EVO had average read and write speeds of 410.4 MB/s and 390.3 MB/s respectively, as well as a burst speed of 378.5 MB/s. Next, I used HD Tach to test the 850 EVO's read, write and burst speeds as well as its seek times and CPU usage. Looking at the screenshot above, you can see that the 850 EVO was able to read at 4,562 MB/s and write at 3,344 MB/s. With RAPID mode enabled, these numbers increased considerably. ![]() While the drive performed well, it came up a bit short of these numbers in CrystalDiskMark's sequential read and write speed tests. This benchmark tool measures the performance of a storage device by testing its sequential read and write speeds as well as its random read and write speeds using blocks 512K and 4K in size.Īccording to Samsung, the 1TB 850 EVO is capable of reading at 540 MB/s and writing at 520 MB/s when connected to a SATA 6 Gb/s port. Looking at the screenshot above, you can see that it performs equally well with both incompressible (0%) and compressible (100%) data.įirst, I ran a few quick tests using CrystalDiskMark. For comparison, I've also included test results from the Crucial BX100, Samsung 850 EVO M.2, Samsung 850 EVO mSATA, AMD Radeon R7, Silicon Power Slim S80, Samsung SSD 850 EVO, OCZ ARC 100, SanDisk Ultra II, Crucial MX100, SanDisk Extreme Pro, Samsung SSD 850 PRO, Plextor PX-256M6S, Toshiba Q Series Pro, Plextor PX-256M6M, Samsung SSD 840 EVO mSATA, OCZ Vector 150, OCZ Vertex 450, Silicon Power Slim S55, Samsung SSD 840 EVO, Seagate 600 SSD, SanDisk Extreme II, Plextor PX-256M5M, OCZ Vector, Plextor PX-256M5Pro Xtreme, Samsung SSD 840 Pro and Samsung SSD 840.Īs I mentioned earlier, the 1TB 850 EVO is based on Samsung's MEX (S4LN045X01-8030) controller chip. To test the performance of Samsung's 1TB SSD 850 EVO, I ran a series of benchmarks using CrystalDiskMark 3.0.1, HD Tach RW 3.0.4.0, ATTO Disk Benchmark 2.46, AS SSD, HD Tune Pro 4.61, Anvil's Storage Utilities and Iometer. ![]() For the operating system, I installed a fresh copy of Windows 7 Enterprise. The computer came equipped with an Intel Core i5-2400 CPU, 4GB of DDR3 1333MHz memory, Seagate Barracuda 7200.12 ST3250312AS 250GB SATA 6 Gb/s hard drive, NVIDIA Quadro FX580 512MB PCIe graphics card and an Intel 82579-LM gigabit network card. The test system used in this review was an HP 8200 Elite.
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