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 407 MB/sec by the way.
Intel 335 SSD review We review the Intel series 335 SSD with test and benchmarks. Intel has developed this product under codename Jaycrest and is the first SSD series that moves into 20nm Nand Flash memory production. We have lots to talk about alright.