FreeSync 2 – HDR Monitors Make Your Game Time More Exciting
FreeSync 2 from AMD will be now responsible to provide you high graphics and the best gaming experience. NVIDIA and AMD came up with new techniques to prevent screen tearing, reduce input lag and smooth out the gaming experience. FreeSync uses the video cards functionality to manage the refresh rate of the monitor using the Adaptive Sync standard built into the DisplayPort standard.
Both FreeSync and FreeSync 2 coexist in the market, the difference is FreeSync 2 is a premium option for high standard monitors while FreeSync is the basic one. FreeSync just misses the new premium features available in FreeSync 2.
AMD is pondering the royalties on FreeSync 2, they won’t give them up easily as a freebie. AMD will still be pushing for technological openness so that everyone can see how FreeSync 2 works, even if ultimately AMD decides to charge monitor manufacturers to make it work with their video cards.
The new features that differentiate FreeSync 2 are:
Low Input Latency
Due to the HDR processing pipelines, there is an increased input lag on display side while FreeSync 2 has low latency for both HDR and SDR too. There is no specific metric range that AMD has given but a 50 to 100ms of lag like you might get with a standard HDR TV would not be acceptable for a gaming monitor. The original idea of FreeSync 2’s HDR implementation is to push tone mapping in-game engine so that to cut down display-side tone mapping. Thus the input latency will be reduced as displays slow processor won’t be involved.
High Dynamic Range
FreeSync 2’s HDR tone mapping is different from the standard HDR pipeline. The tone mapping uses calibration and specification data sent from the monitor to the PC to simplify the tone mapping process. Without processing the data on the monitor, the games tone map directly what the display should present, thus transporting the data straight to the monitorThis was in contrast to standard HDR tone mapping pipelines that see games tone map to an intermediary format before the display then figures out how to tone map it to its capabilities. And this reduced latency.
AMD’s website on FreeSync 2 simply lists the technology as including “support for displaying HDR content,” and there is no mention anywhere of FreeSync 2 supported games. And when you use a FreeSync 2 monitor, HDR support relies entirely on Windows 10’s HDR implementation for now, which is improving slowly but isn’t at the same level AMD’s original solution is set to provide in an ideal environment.
There is no successful HDR and SDR transition possible in the FreeSync 2 till now. Everyone would like to see a Display HDR 600 minimum but 400 nits of peak brightness from DisplayHDR 400 should be fine for an entry-level HDR experience.
Low Framerate compensation
This feature matches with the adaptive sync to ensure that adaptive sync functions at every framerate from 0 FPS up to the maximum refresh rate supported by the display.
Why low framerate compensation?
Display refreshes the framerate within 48 to 144 Hz. If you want the framerate to be reduced to 40 FPS when the minimum refresh is 48 Hz, normally you’d be stuck with standard screen tearing or stuttering issues like you’d get with a fixed refresh monitor. That’s because the GPU’s render rate is out of sync with the display refresh rate.
The LFC extends the window in which you can sync the render rate t refresh rate using adaptive sync. However in the case of FreeSync 2, every monitor validated for this spec will support LFC so you won’t have to worry about the minimum refresh rate of the monitor.
FreeSync 2 Monitors Available:
Currently, there are three FreeSync 2 monitors available in the market.
The Samsung’s Quantum Dot Line up
All the three are DisplayHDR 600 certified and there are more HDR monitors joining the league.