CrystalDiskMark Portable can measure sequential reads / writes speed, measure random 512KB, 4KB, 4KB (Queue Depth=32) reads / writes speed, has support for different types of test data (Random, 0Fill, 1Fill).
Full Specifications
What's new in version 3.0.2e
General
ReleaseJanuary 20, 2013
Date AddedJanuary 21, 2013
Version3.0.2e
Operating Systems
Operating SystemsWindows 2000, Windows Vista, Windows, Windows 7, Windows XP