I am sure this has been said somewhere in all of the comments, but what's one more time. lol
Adaptive Sync has been around far longer than G-Sync, just in laptops, and now that it's a display port 1.2a+ standard, it will be open to ALL desktop hardware.
Nvidia had no reason to create G-Sync, they could have done exactly what AMD did and push for adaptive sync, but they chose to create a completely separate proprietary technology. At a hardware level, G-Sync has no real advantages over adaptive or Freesync.
Nvidia only did what they did becasue they are like Apple, they go to great ends to maintain a closed ecosystem and are dead set against open anything in many aspects of their business. It's just how they operate.
PhysX is a perfect example, the engine can run on any hardware, the only reason it won't run on AMD or any other GPU is becasue it's locked, not becasue of any hardware limitation. This is something Nvidia did shortly after buying the engine from Ageia. In fact, you used to be able to run PhysX on an ATI GPU via a modified driver. However Nvidia went to great lengths to prevent this, and now if you want to run PhysX on anything but a pure Nvidia system, you need a hybrid AMD/Nvidia setup and modified driver. The only reason this is not blocked yet is because it's a software level block and there is little Nvidia can do to stop it.
The thing is, there is no point, by locking down PhysX Nvidia has come really close to killing it. The number of games that use it at the GPU level are miniscule, and dropping rapidly, compared to Havok or engine specific physics. Both of which can do anything PhysX can, and are not hardware locked or limited.
More recently, Nvidia has gone so far to lock the libraries used with GameWorks to actually hinder the performance of non-Nvidia based GPU's.
I am not trying to come off as a hater, or fanboy, just pointing out facts.
In my opinion, if this is true, it's a bad move for Nvidia. Hardware and software is moving more toward open standards, and Nvidia no longer rules the discrete GPU world, AMD has a very large share and it's showing no signs of slowing. In the end, this will only hurt Nvidia's business. There will be little to no reason to buy G-Sync over an adaptive sync capable display. There will be fewer displays and models that will support G-Sync over adaptive since it's a standard and G-Sync is not. The G-Sync displays will likely cost more, since the hardware is proprietary, and you will get no real added benefit other than the opportunity to wear your green team tag with pride.
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