Aí está a resposta que todos esperávamos à demasiado "fechada"(e cara) tech da nVidia!
in http://www.dsogaming.com/news/amds-a...lled-freesync/AMD’s Answer To Nvidia’s G-Sync Tech Is Called “Freesync”
Man, this “gen-battle” is going to be really interesting. Nvidia vs AMD. Android support versus consoles support. TressFX vs PhysX. And G-Sync versus FreeSync. AnandTech has revealed that AMD’s answer to Nvidia’s mind-blowing G-Sync tech is called “FreeSync” and does not require any hardware modifications at all. That is of course if your monitor supports VBLANK.
During CES 2014, AMD used two Toshiba Satellite Click notebooks, without any hardware modifications, to demonstrate its variable refresh rate technology.
As AnandTech noted, this “FreeSync” tech can be used when the GPU’s display engine, its panel and display hardware itself support it.
And there you have it AMD fans. If everything goes well, you won’t miss the advantages of the G-Sync tech.“In the case of the Toshiba Satellite Click, the panel already supports variable VBLANK. AMD’s display engines have supported variable VBLANK for a couple of generations, and that extends all the way down to APUs. The Satellite Click in question uses AMD’s low cost Kabini APU, which already has the requisite hardware to support variable VBLANK and thus variable display refresh rates (Kaveri as well as AMD’s latest GPUs should support it as well). AMD simply needed driver support for controlling VBLANK timing, which is present in the latest Catalyst drivers. AMD hasn’t yet exposed any of the controls to end users, but all of the pieces in this demo are ready and already available.”
FreeSync is still in early phase and AMD has not used as impressive demos as Nvidia did with G-Sync. Still, it’s better than nothing.
The only demo that was showcased at CES 2014 was the following one. On the left we have a laptop running the scene at 30fps v-sync, and on the right we have a laptop running the scene via FreeSync.
Enjoy!
Artigo da ANANDTECH:
- http://www.anandtech.com/show/7641/a...ve-at-ces-2014
Just like I did in our G-Sync review, I took a 720p60 video of both screens and slowed it down to make it easier to see the stuttering you get with V-Sync On when your content has a variable frame rate. AMD doesn’t want to charge for this technology since it’s already a part of a spec that it has implemented (and shouldn’t require a hardware change to those panels that support the spec), hence the current working name “FreeSync”.
AMD’s demo isn’t quite as nice as NVIDIA’s swinging pendulum, and we obviously weren’t able to test anywhere near as many scenarios, but this one is a good starting point. The system on the left is limited to 30 fps given the heavy workload and v-sync being on, while the system on the right is able to vary its frame rate and synchronize presenting each frame to the display's refresh rate. AMD isn’t ready to productize this nor does it have a public go to market strategy, but my guess is we’ll see more panel vendors encouraged to include support for variable VBLANK and perhaps an eventual AMD driver update that enables control over this function.
In our review I was pretty pleased with G-Sync. I’d be even more pleased if all panels/systems supported it. AMD’s “FreeSync” seems like a step in that direction (and a sensible one too that doesn’t require any additional hardware). If variable VBLANK control is indeed integrated into all modern AMD GPUs, that means the Xbox One and PS4 should also have support for this. Given G-Sync’s sweet spot at between 40 - 60 fps, I feel like “FreeSync” would be a big win for AMD’s APUs.
---
Ehehe, love it! Até o nome...
Bookmarks