QUOTE(ruffstuff @ Apr 2 2015, 04:16 PM)
I have nothing to argue on what you wrote. But this is what i have to say,
Nvidia knows that edp alone cannot do what g-sync did outside VRR window. Thus, i was skeptic about people claiming freesync is the same thing with g-sync. It is true within the VRR window, but the story change outside VRR window. This is where g-sync shine.
PCPER guys discover this fact (weird nvidia did not actually announce this even though Tom Perterson did hint about it in recent interview), however, later i found out that the VESA spec of adaptive sync have similar approach to g-sync outside vrr window.
Let me just quote VESA white paper: "If the game’s framerate drops below the refresh rate of the display (eg. during a short period of intensive action), then the new frame will not be ready in time for the display’s blanking interval, and the previous frame is repeated on the display."
From my understand, this is what G-Sync did from what we've been gathered from PCPER testing. This is Adaptive-Sync spec. It is weird enough that Freesync didn't do this in the test.
Thus i came into conclusion (my thoughts), that Freesync is not a full adaptation of adaptive-sync. It just part of adaptive-sync standard. I think you may caught those mobile g-sync thing that, there is no g-sync module on the panel itself. I guess this mobile g-sync works the same just like current free-sync. They make use of the adaptive-sync spec, but once it goes outside vrr, it will stuttered/tearing.
Also, there is discussion on Tek Syndicate also agreed that Freesync is not a full implementation of Adaptive-sync.
The white paper link.
http://www.vesa.org/wp-content/uploads/201...aper-140620.pdfAgain its not a vesa issue. Its the implementation of driver support with the gpu. I did read that spec and its just a showcase slide of a tech thats dependent on theorectical driver implementation on gpu side. There is no such drivers atm.
Scaler companies gpu manufactorers.. Each are doing a job one half the coin with only one side really putting money into it. Thats y i am telling ya. Adaptive sync is complete. The implementation in gaming is a freesync issue. Thats what they meant. How it handles below the vrr window is a freesync issue. There will be no hardware buffer from the scaler side.
Vsync its a gpu driver feature. They are painting a pretty picture of a driver feature that hasnt been invented. Change the tag line from free sync is incomplete. No tech on driver level has been invented to solve that double framing below vrr.
Nvidia is known to off load things to specific hardware feature rather than make it a driver feature. Same thing they did with frame pacing which btw amd didnt even knew was a issue when ppl started testing for it.
Mobile adaptive sync. Check what nvidia said about it. If a set of driver instructions was ideal for gaming .. We would have seen it by now as 99% gaming notebooks out there is powered by nvidia. Ppl are just guessing on the alpha driver which is just a mirror implementation if freesync. I doubt nvidia will crack that buffer issue via driver n release it only for amd to copy. I think nvidia will release a hardware level inbuilt into their gpu. This is my assumption seeing how they do bizz n protect their investment.
Btw theres no better forum than ocn atm. Everbody is there.
This post has been edited by cstkl1: Apr 2 2015, 04:56 PM