HD Tach is a physical performance hard drive test that uses a special kernel mode VXD to get maximum accuracy by bypassing the file system.
We look at average (not peak!) write performance in this test. In addition to sequential read performance, HD Tach tests the drive's random access time. Random access is the true measure of seek speed. Many drives advertise sub 10 millisecond seek speeds, but seek speeds are misleading.
Also again, without a physical head that moves around, the SSDs are just so fast as they have no mechanical moving parts. Here obviously, the smaller the number is, the better. In this case, 0.1 ms. The Burst speed measured in HD Tach was 464 MB/sec by the way.
Mach Xtreme MX Express SSD Review Mach Xtreme MX Express released their PCI Express SSD, and we review it. Designed and based on PCI Express 2.0 x2/x4/x16 slot, the newcomers are 128 GB, 256 GB, 512 GB and 1,024 GB SSDs powered by SandForce controllers.
Mach Xtreme DS Turbo 120GB SSD review Today we look at an offering from Mach Technology (MX technology), they added no less than four new SATA 3 (SATA 3 6Gs) SSDs in their MX DS Turbo lineup, in 120GB, 180, 240GB and even 480MB capacities, all SATA 3 of course. The SSD drives come with that already prominent SandForce SF-2281 controller to deliver up to 555 MBps read and 510 MBps write speeds (when peaking).