The first monitors that are FreeSync compatible have been available at a handful of etailers already (at least here in the EU), however to enable you are going to need a driver. That driver with its dynamic refresh rate capabilities will be released on march 19th.

With the first release just one graphics card series will be supported with FreeSync, then in April more cards will be supported. We assume that initially it would be Hawaii this the R9 290 series

AMD is very excited that monitors compatible with AMD FreeSync™ technology are now available in select regions. We know gamers are excited to bring home an incredibly smooth and tearing-free PC gaming experience powered by AMD Radeon™ GPUs and AMD A-Series APUs. We’re pleased to announce that a compatible AMD Catalyst™ graphics driver to enable AMD FreeSync™ technology for single-GPU configurations will be publicly available on AMD.com starting March 19, 2015. Support for AMD CrossFire™ configurations will be available the following month in April, 2015.

All AMD Radeon graphics cards in the AMD Radeon HD 7000, HD 8000, R7 or R9 Series will inevitably support Project FreeSync for video playback and power-saving purposes. The AMD Radeon R9 295X2, 290X, R9 290, R7 260X and R7 260 GPUs additionally feature updated display controllers that will support dynamic refresh rates during gaming.

AMD FreeSync will get rid of screen tearing and tiny sync stuttering/pulsing. The protocol FreeSync / Adaptive Sync will be embedded into DisplayPort 1.2a and eDP (embedded Displayport), there is a catch though, manufacturers of monitors are free to decide wether or not to support the technology. At Computex there are supported monitors on display, AMD however will not reveal the manufacturers just yet. The Video Electronics Standards Association (VESA) already announced the addition of 'Adaptive-Sync' to its popular DisplayPort 1.2a video interface standard.